Inorganic Chemistry Communications (v.71, #C)

Contents List (iii-x).

Two series of lanthanide coordination polymers, {[Ln2(tabc)4(C2O4)(H2O)5]·H2O}n (Ln = Nd (1), Sm (2), Eu (3), Htabc = 4-(1–1,2,4-triazolyl)benzoic acid) and {[Sm(tabc)(1,2-pdc)(H2O)2]·2H2O}n (4), have been constructed via hydrothermal conditions through adding different auxiliary ligands. Compounds 13 are two dimensional coordination layer comprised of {Ln1(COO)2} chains and {Ln2(COO)2} dinuclear units which are connected by oxalate groups, whereas compound 4 is one dimensional chain containing {Sm2(COO)2} dinuclear units. The IR spectra and thermal stabilities of all compounds have been studied in detail. Compound 3 shows characteristic emission of Eu3 + ions, and it is noteworthy that the luminescent properties for 2 shows no emission peaks whereas that for 4 exhibits characteristic absorption bands of Sm3 + ions.CCDC: 1478487, 1478488, and 1478495Display Omitted
Keywords: Lanthanide coordination polymers; Triazole ligand; Luminescence; Auxiliary ligands;

Solvent-controlled synthesis and reversible dynamic structural conversions of a series of iron(II) coordination complexes by Bin Zhai; Zhongyi Li; Bin Ding; Fuqiang Zhang; Xiangfei Zhang; Ying Liu; Guangxiu Cao (5-8).
In this work, a versatile multi-dentate 1,2-bis(pyridin-4-ylmethylene)hydrazine (L) ligand has been employed to construct three novel iron(II) coordination complexes, [Fe(L)2(NCS)2(H2O)2]·2H2O (1), [Fe(L)(NCS)2(H2O)2] (2) and {[Fe(L)2(NCS)2]·2CH3OH}n (3) (NH4NCS = ammonium thiocyanate), which can be isolated under similar synthetic conditions, only different molar ratio of metal/ligand or different solvent systems are used. 1 is a mono-nuclear iron(II) coordination complex, and 2 is a one-dimensional (1D) iron(II) coordination complex, while 3 is a 2D micro-porous iron(II) framework with the channel dimensionality of 13.936(3) Å × 13.936(3) Å. PXRD patterns also confirm the purity of the bulky samples of 13. For 13, it represents the first example of solvent-induced drastic reversible dynamic conformation between different dimensional iron(II) coordination complexes 1 (0D), 2 (1D) and 3 (2D) (for 1: water; for 2: benzene; for 3: methanol/acetone/acetonitrile), which are unambiguously confirmed by PXRD characterizations. Variable-temperature magnetic susceptibility data of 23 have been recorded in the 2–300 K temperature range, indicating weak antiferromagnetic interactions.Three different iron(II) coordination complexes 1 (0D), 2 (1D) and 3 (2D) were reported as the first example of solven-controlled synthesis and reversible dynamic structural conversion. Variable-temperature magnetic susceptibility data of 2–3 reveal that both complexes show weak anti-ferromagnetic interactions.Display Omitted
Keywords: Iron(II); Coordination complexes; Reversible dynamic conversions; Magnetic property;

The solvothermal reactions of tetrazole- and pyridyl-containing asymmetric amide ligands [N-(pyridin-3-yl)isonicotinamide (PIA) and 3-(1H-tetrazole-1-acetic acid amido)pyridine (TAAP)] with Zn(NO3)2 in the presence of [Mo7O24]6 − anions lead to the formation of two new compounds, namely H4[(Mo8O26)(PIA)2]·H2O (1) and H4[Zn2(TAAP)4(H2O)4](Mo8O26)2·16H2O (2), which have been characterized by single-crystal X-ray diffraction, IR spectra, elemental analysis, TGA and PXRD analysis. Compound 1 is a 3D supramolecular structure derived from the 0D [(Mo8O26)(PIA)] cluster containing Mo―N bond. Compound 2 features a two-fold interpenetrating 3D network with [Mo8O26]4 − anions as templates and possess 4-connected lvt net. Furthermore, the electrochemical, photocatalysis and luminescent properties of compound 2 have been investigated.Two octamolybdate-based compounds with different structures have been solvothermally synthesized by only using two different N-donor amide ligands. Compound 1 features a 0D H4{[Mo8O26](PIA)2]} cluster containing Mo―N bonds, which further interlinked by hydrogen bonding interaction to yield a 3D supramolecular structure. Compound 2 is a two-fold interpenetrating 3D network with [Mo8O26]4 − anions as templates and possess 4-connected lvt net.Display Omitted
Keywords: Octamolybdate; Mo―N bond; Zn(II) compound; Electrocatalysis; Photocatalysis; Luminescent properties;

A novel organotriphosphoryl polyoxomolybdate, namely, [(CH3)4N][(CH3)3N][R(PO3H)2(PO3)]PMo9O28 (1), where R = C12H15, has been synthesized hydrothermally. The structure of 1 contains one trivacant [PMo9O34] subunit on which is grafted one R(POH)2(PO) through three P-O-Mo bridges. Compound 1 is the first example of polyoxomolybdate decorated by three phosphonate groups from one organotriphosphonic acid. The structure of the compound was determined by single-crystal X-ray diffraction analysis and further characterized by infrared spectrum (IR) and elemental analysis. Moreover, the UV–vis absorption spectrum of the compound has been investigated experimentally and theoretically.A novel organotriphosphoryl polyoxomolybdate has been prepared hydrothermally, where its absorption spectrum has been investigated experimentally and theoretically.Display Omitted
Keywords: Polyoxomolybdate; Organophosphoryl; Theoretically; Experimentally; Absorption spectrum;

A new 1D Zn-based coordination polymer (CP), {[Zn(HBTB)(pdp)]·H2O} (1) (H3BTB = 1,3,5-benzenetribenzoic acid and pdp = 2-(4,6-di(pyridine-2-yl)pyridine- 2-yl)pyridine), has been synthesized under solvothermal condition and structurally characterized. The compound displays intense luminescence in solid state at room temperature with high thermal stability. Interestingly, Luminescent studies indicate that 1 could be an efficient multifunctional fluorescence material for high sensitivity metal ions, anions and organic small molecules, especially for Cu2 +, CrO4 2 − and nitrobenzene (NB) by luminescent quenching. The probable quenching mechanism of different analytes was also discussed.A new 1D Zn(II)-based coordination polymer (CP) with potential active sites based on 2-(4,6-di(pyridine-2-yl)pyridine-2-yl)pyridine (pdp) and 1,3,5-benzenetribenzoic acid (H3BTB), {[Zn(HBTB)(pdp)]·H2O} (1), has been synthesized solvothermally. Luminescence properties of 1 were investigated, and the results show that 1 can work as highly sensitive sensors to Cu2 +, CrO4 2 − and nitrobenzene (NB) explosive.Display Omitted
Keywords: Coordination polymer; Luminescence; Sensing; 2-(4,6-di(Pyridine-2-yl)pyridine-2-yl)pyridine;

A novel europium metal-organic framework as luminescent probe for detecting Al3 + by Bin Zhai; Zhong-Yi Li; Zhi-Lei Wu; Jian-Zhong Cui (23-26).
A novel three-dimensional europium metal-organic framework (Eu-MOF), [Eu(L)(OAc)(DMA)]n (1), has been successfully obtained based on a newly designed ligand 4′-(3,5-dicarboxyphenyl)-4,2′:6′,4″-terpyridine (H2L). The structure of 1 was established by single crystal X-ray diffraction technique, and structure analysis shows that two Eu3 + in 1 are 4-fold bridged by two η112 carboxylates from L2 − and the other two η122 carboxylates from acetic acid, respectively. The binuclear [Eu2] were further linked by L2 − to form a 3D framework. The investigations on luminescent properties reveal that 1 can detect Al3 + quickly with relatively high sensitivity and selectivity. More importantly, it displays high thermal and solvent stability. Additionally, a self-made fluorescence test paper fabricated based on 1 was used to detect Al3 + in practice.A novel three-dimensional europium metal-organic framework (Eu-MOF), [Eu(L)(OAc)(DMA)]n (1), have been successfully obtained based on a newly designed ligand 4′-(3,5-dicarboxyphenyl)-4,2′:6′,4″-terpyridine (H2L). The luminescent studies reveal that 1 can detect Al3 + quickly with high sensitivity and selectivity. Importantly, it displays high thermal and solvent stability.Display Omitted
Keywords: Europium metal-organic framework; Luminescent probe; Al3 +;

Tetranuclear Eu(III)-Co(II) complex of an N4O4 macrocycle by Małgorzata Hołyńska; Paula Gawryszewska; Jerzy Lisowski (27-31).
The reaction of an Eu(III) complex of the protonated form of the macrocyclic Schiff base derived from 1,3-diamino-2-hydroxypropane and 2,6-diformylphenol, [Eu(H4L)Cl3], with three equivalents of base results in a mononuclear complex of the triply deprotonated form of the ligand, [Eu(HL)]. The photophysical properties of the [Eu(HL)] complex are discussed on the basis of emission and excitation spectra, as well as of the emission decay times. The [Eu(HL)] complex in a reaction with cobalt(II) chloride gives a heterometallic Eu(III)-Co(II) macrocyclic complex, [EuCo(HL)(CH3OH)2Cl]2Cl2·4CH3OH. In the presence of base and an excess of cobalt(II) chloride the starting [Eu(H4L)Cl3] complex is converted to a dinuclear Co(II) complex, [Co2(H2L)Cl2(CH3OH)2]·1.5CH3OH.Reactivity of an Eu(III) complex of the deprotonated form of a macrocyclic Schiff base is reported leading to Eu(III), Eu(III)-Co(II) and Co(II) complexes.Display Omitted
Keywords: Macrocycle; Schiff-base; Eu(III); Heterometallic complex; Cobalt(II); X-ray diffraction; Luminescence;

Designed metal–organic framework based on metal–organic polyhedron: Drug delivery by Jian Wu; Jing-Wen Xu; Wei-Cong Liu; Su-Zhen Yang; Miao-Miao Luo; Yao-Yao Han; Jian-Qiang Liu; Stuart R. Batten (32-34).
A new metal–organic framework having formula {[NH2(CH3)][Cu6(L)3(OAc)(H2O)4]·xsolvent} (H4L = 3,5-bis(isophthalic acid)-1H-1,2,4-triazole) (1) was synthesized, in which two types of polyhedral cages and one-dimensional channels coexist. The incorporation of the drug 5-fluorouracil (5-FU) into the desolvated 1 was around 24.9 wt% per gram of dehydrated 1. 5-FU is released in a controlled and progressive fashion with 98% of the drug released after 120 h at PBS. The result from this work provides a new avenue for MOF to be used as potential drug delivery.An unusual metal–organic polyhedron tetranodal net with (32.4.52.65)2(3.5.64)2(4.52.63)(4.52.72.8) topology has been synthesized. 5-FU is released in a highly controlled and progressive fashion with 98% of the drug released after 120 h.Display Omitted
Keywords: Polyhedral cage; Drug delivery;

In this study, galactose conjugated new magnesium and zinc porphyrazines were synthesized by the cyclotetramerization reaction of 2,3-bis[1-(2,2,7,7-tetramethyltetra-hydro-bis[1,3]dioxolo[4,5-b;4′,5′-d]pyran-5,methyl)-1H-[1,2,3]triazol-4-yl methylsulfanyl]-but 2-enedinitrile. This substituted dicyano compound was prepared via two different routes. One started from cis-1,2-dicyano-1,2-ethylenedithiolate disodium, [1-(2, 2, 7,7-tetramethyltetrahydrobis[1,3]dioxolo[4,5-b;4′,5′-d]pyran-5-yl-methyl)-1H-[1,2,3]triazo-l-4-yl]methanol and ended in a multi-step reaction sequence via Click procedures. The other reaction was between 5-azidomethyl-2,2,7,7-tetramethyltetrahydro-bis[1,3]dioxolo[4,5-b;4′,5′-d]pyran and (2Z)-2,3-bis(prop-2-yl-1-yl-thio)but-2-enedinitrile. A very soluble galactose linked magnesium porphyrazine derivative in common polar solvents and water was achieved by the deprotected isopropylidene groups in TFA and water media. It is first time, zinc porphyrazine complex has been achieved at one-step reaction by using Zn(BuO) 2 as template agent. The new compounds have been characterized by a combination of elemental analysis, 1H, 13C NMR, IR, UV–vis and MS spectral data.Display Omitted
Keywords: Magnesium porphyrazine; Zinc porphyrazine; Galactose; Click reaction; Iodination reaction; Deprotection of ketal;

The complexation of Ho(III) with tetramethyl-diglycolamide (TMDGA) and N,N′-dimethyl-N,N′-dioctyl-diglycolamide (DMDODGA) were investigated with spectrophotometry and X-ray crystallography. Single crystals of a solid compound HoL3(ClO4)3 (L = TMDGA) were grown from aqueous solutions by slow evaporation. The crystal structure of HoL3(ClO4)3 shows that in the solid compound Ho(III) is coordinated by nine oxygen atoms from three tridentate TMDGA molecules in a distorted tricapped trigonal prism (TCTP) geometry. In aqueous solution, three successive complex species, HoL3 +, HoL2 3 +, and HoL3 3 + (L = TMDGA) were identified and their stability constants were determined to be 2.20 ± 0.09, 4.48 ± 0.18, 5.88 ± 0.18, respectively, with spectral titration method at 25 °C and 1 M ionic strength (1 M NaNO3). The UV–Vis absorption/reflection spectra of the 1:3 species HoL3 3 + (L = TMDGA) in aqueous solution/solid state HoL3(ClO4)3 compound were very well comparable to the absorption spectra of the extracted samples of Ho(III) with DMDODGA in various organic solvents in solvent extraction. The similarity in the spectra suggest that Ho(III) in the extracted samples is also coordinated by three tridentate DMDODGA with similar coordination geometry as that in HoL3 3 + (L = TMDGA) in aqueous solution/solid HoL3(ClO4)3 compound. In the organic phase of solvent extraction with DMDODGA as extractant, the nitrate anions do not directly bond to Ho(III) in the extracted complex but just act as far away counter-ion to neutralize the positive charge of HoL3 3 + (L = DMDODGA), and the diluents do not have much influence on the formation of the extracted Ho(III)-DMDODGA complex.Similar complexes of Ho(III) with tetraalkyl-diglycolamide ligands formed in aqueous solution/solid state compound/solvent extraction systems.Display Omitted
Keywords: Ho(III); Diglycolamide; Solvent extraction; Crystallography; Spectrophotometry;

Flowers-like structure BiOCl/BiOI heterojunctions with exposed {001} facets have been prepared by a facile one-step hydrothermal method. The 70% BiOCl/BiOI heterojunction exhibited the highest photocatalytic activity. The highly enhanced visible light photocatalytic performance was mainly ascribed to the synergistic effect of {001} crystal facets, sensitization of RhB, increasing photo absorption and heterojunctions. The synergistic effect of coupled system could open up new opportunities to develop high-performance photocatalysts for degradation of organic pollutants in water.Display Omitted
Keywords: Photocatalyst; Heterojunctions; {001} facet; Electron injection;

Synthesis and the temperature-dependent luminescent properties of SrWO4:Eu3 + ultralong nanowire phosphors by Dao-Jun Zhang; Jing-Chao Zhang; Jing-Yang Zhou; Sun-Shou Cai; Yue Gao; Bai-Qing Yuan; Ren-Chun Zhang (50-53).
SrWO4:Eu3 + nanowires with high aspect ratio were prepared by a solvothermal method via a poor solvent induced self-assembly process. The luminescence properties of SrWO4:Eu3 + nanowires were investigated in detail. In the emission spectrum excited at 277 nm, the 5D0  →  7F2 is much stronger than the 5D0  →  7F1, indicating that Eu3 + ions occupy low symmetry sites in SrWO4 lattices. The broad excitation band centered at 277 nm is assigned to the overlap of WO4 2 − absorption and charge transfer transition between Eu3 + and O2 −. The temperature-dependent luminescent properties are also investigated in a wide temperature range from 100 to 450 K, it reveals that SrWO4:Eu3 + is a potential luminescent thermometer in the temperature range from 310 K to 450 K.SrWO4:Eu3 + nanowires with high aspect ratio were prepared via a solvothermal method. The temperature-dependent photoluminescence properties of SrWO4:Eu3 + nanowires were investigated, the result exhibits that SrWO4:Eu3 + nanowire is a potential luminescent thermometer in the range from 310 K to 450 K.Display Omitted
Keywords: Metal tungstates; Nanowires; f–f transitions; Luminescent thermometer;

A new 1:2-type inorganic–organic hybrid CuII ―CeIII heterometallic germanotungstate (GT) derivative KNa2H9[enH2]2 [Cu(en)2(H2O)]2[Cu(en)2]2{Cu(en)2[Ce(α-GeW11O39)2]2}·14H2O (1) (en = ethylenediamine) was obtained by simultaneously introducing Cu2 + and Ce4 + cations to the trivacant Keggin-type [A-α-GeW9O34]10 − system in the help of extra Na2WO4·2H2O and en ligand under hydrothermal conditions and was further characterized by elemental analyses, IR spectrum, thermogravimetric (TG) analysis and single-crystal X-ray diffraction. 1 exhibits a 1-D CuII ―CeIII heterometallic chain architecture by tetrameric {Cu(en)2[Ce(α-GeW11O39)2]2}24 − units via K+ cations. Moreover, its solid-state electrochemical and electrocatalytic properties have been measured in 0.5 mol L− 1 Na2SO4  + H2SO4 aqueous solution by entrapping them in a carbon paste electrode, indicating that 1 displays apparent electrocatalytic activities for nitrite, bromate and hydrogen peroxide reduction.A 1:2-type inorganic–organic hybrid CuII ―CeIII heterometallic germanotungstate derivative has been synthesized and the electrochemical properties of 1 have been studied.Display Omitted
Keywords: Germanotungstate; Hydrothermal condition; Electrochemistry;

Two distinct Zn(II) coordination polymers (CPs) have been prepared based on Zn(NO3)2 and 4-(2-ethyl-1H-imidazol-1-yl)benzoic acid (2-Heiba) via different synthetic approaches, solvothermal synthesis and layer diffusion, respectively. Upon solvothermal condition, a 2D undulated CP [Zn2(2-eiba)3(OH)] n (1) can be obtained, which incorporates the polythreading structural motifs and then results in the 3-fold pcu topological network with the aid of interlayer O―H ⋯ N hydrogen bonds. Employment of layer diffusion method affords another 3D CP {[Zn(2-eiba)2](H2O)3} n (2), featuring a dia topological network in 2 + 2 → 4-fold interpenetrating pattern. Interestingly, interconvertible structural transformations between 1 and 2 can be achieved by immersing in CH3OH-H2O solution under stirring or solvothermal conditions, respectively. In addition, thermal stability and fluorescence properties of these complexes have also been studied.Two interpenetrating ZnII coordination polymers with 4-(2-ethyl-1H-imidazol-1-yl)benzate ligand have been synthesized from layer diffusion and solvothermal methods, respectively, which display the interconvertible structural transformations.Display Omitted
Keywords: Coordination polymer; Synthetic approach; Interpenetrating network; Structural transformation;

Synthesis, crystal structure, characterization and magnetic property of a new organophosphonate-based polyoxovanadate by Ran Ban; Yanli Liang; Pengtao Ma; Dongdi Zhang; Jingyang Niu; Jingping Wang (65-67).
A novel organophosphonate-based polyoxovanadate, Cs1·5Na3.5[H{V3(H2O)O3}{O3PC- (OH)(CH3)PO3}3]·15H2O (1) has been synthesized and further investigated by single-crystal X-ray diffraction analysis, IR spectrum, UV–vis spectroscopy, X-ray powder diffraction, thermogravimetric analysis and X-ray photoelectron spectroscopy. Single-crystal X-ray analysis reveals that compound 1 crystallizes in the triclinic space group P-1 with a = 9.506(3) Å, b = 15.150(5) Å, c = 17.915(6) Å, V = 2437.9(14) Å3 and Z = 2. Compound 1 exhibits a ring-shaped cluster with three branches of the 1-hydroxyethane 1, 1-diphosphonic acid [HEDP = H2O3P(OH)C(CH3)PO3H2] ligands. Furthermore, the magnetic property of compound 1 has also been studied.Polyanion 1a consists of three HEDP fragments and three {V(H2O)n} bridges, which are connected alternatively into a ring-shaped structure. Interestingly, an isosceles triangle is constructed by V1, V2 and V3 atoms.Display Omitted
Keywords: Polyoxovanadate; Crystal structure; Magnetism;

Host–guest interactions in tetramethyl-cucurbit[6]uril with anti-tuberculosis drug isoniazid by Zhong-Zheng Gao; Dong Bai; Zhi-You Xiao; Qian-Jiang Zhu; Sai-Feng Xue; Zhu Tao; Xin Xiao (68-72).
A novel supramolecular host–guest complex of anti-tuberculosis drug isoniazid (INH) with symmetrical α,α′,δ,δ′-tetramethyl-cucurbit[6]uril (TMeQ[6]) has been investigated using 1H NMR spectroscopy methods, mass spectrometer and single-crystal X-ray diffraction analysis. The result revealed that the INH guest is located the portal of the TMeQ[6] host in both the solutions and the solid state. The driving forces for the association between the guest INH and the host TMeQ[6] are made by a balance between hydrogen bonding interactions and ion-dipole interactions.A novel supramolecular host–guest complex of anti-tuberculosis drug isoniazid (INH) with symmetrical α,α′,δ,δ′-tetramethyl-cucurbit[6]uril (TMeQ[6]) has been investigated using 1H NMR spectroscopy methods, mass spectrometer and single-crystal X-ray diffraction analysis. The result revealed that the INH guest is located the portal of the TMeQ[6] host in both the solutions and the solid state.Display Omitted
Keywords: Cucurbit[u]uril; Binding interaction; X-ray crystallography; Isoniazid; Hydrogen-bonding interaction;

Design and synthesis of two macrocyclic dinuclear coordination polymers with binding of nitric oxide by Q.R. Cheng; M. Zhang; Y. Zhang; G.Y. Liao; H. Zhou; Z.Q. Pan (73-77).
Two new coordination polymers of Robson-type macrocycles, {[CuL1]n (1) and {[CuL2]n (2), were obtained by the condensation between bapa and N,N′-bis(3-formyl-5-R-salicylimine)-1,2-propylenediimine in the presence of Cu(II). These polymers have the common feature that the 3-methylaminopyridine group in one ligand coordinates to the metal ion in the neighboring coordination unit, leading to the formation of one-dimensional infinite chain. The formation of NO complexes has been confirmed by UV/Vis spectrophotometry. The binding constants were calculated to be 8.18 × 102  M− 1, 1.2 × 103  M− 1 for 1 and 2, respectively. The control experiments revealed there was non-reversible binding of NO, which can be ascribed to specially coordination environment of the central Cu(II) ions. Moreover, the interactions of the complexes with calf thymus DNA (CT-DNA) have been measured by agarose gel electrophoresis, and the results showed that they can not cleavage the CT-DNA. These two complexes can be served as potential NO scavengers.Two new coordination polymers of Robson-type macrocycles, {[CuL1]n (1) and {[CuL2]n (2), were obtained by the condensation between bapa and N,N′-bis(3-formyl-5-R-salicylimine)-1,2-propylenediimine in the presence of Cu(II). The NO absorption experiments revealed a moderate binding to NO and control experiments showed the non-reversibility of the binding NO to these two macrocyclic metal Cu(II) complexes.Display Omitted
Keywords: Robson-type macrocyclic complex; Coordination polymer; Nitric oxide scavenger; DNA cleavage;

Solvent directed assembly of two zinc(II)-2-(4-pyridyl)-4,5-imidazoledicarboxylate frameworks by Xue-Min Jing; Li-Wei Xiao; Lei Wei; Fu-Cai Dai; Li-Lei Ren (78-81).
Two zinc(II)-2-(4-pyridyl)-4,5-imidazoledicarboxylate frameworks, formulated as {[Zn3(HPIDC)3(DMF)2](DMF)2(H2O)2}n (1) and {[Zn4(HPIDC)4(DMF)4](DMF)2(FMA)2(H2O)}n (2) (H3PIDC = 2-(4-pyridyl)-1H-4,5-imidazoledicarboxylic acid, DMF =  N,N′-dimethylformamide, FMA = formamide) have been solvothermally synthesized depending on whatever solvents are used. In both structures, the HPIDC2 − anions act as tripodal connectors to chelating with three zinc(II) cations while the zinc(II) cations coordinate with three HPIDC2 − anions, to form the T-shape molecular building blocks [Znn(HPIDC)n], which further connect in interdigitating or alternating fashion to result in the assembly of two different 3,3-connected networks. The luminescence behaviors and solvent effect were also discussed.Two zinc(II)-2-(4-pyridyl)-4,5-imidazoledicarboxylate frameworks with different 3,3-connected networks and blue luminescent emission have been solvothermally assembled largely depending on what solvents are used.Display Omitted
Keywords: Solvothermal synthesis; Metal-organic frameworks; Luminescence; Crystal structure;

Zeolitic metal-biomolecule frameworks based on supertetrahedral lithium clusters and hypoxanthine nucleobase by Jian-Fang Wang; Yao Kang; Wei-Hui Fang; Lei Zhang; Jian Zhang (82-85).
Two “light” zeolitic cluster-organic frameworks are constructed from supertetrahedral pentanuclear lithium cluster and unprecedented μ4-hypoxanthine nucleobase.The combination of supertetrahedral pentanuclear lithium cluster and unprecedented μ4-hypoxanthine nucleobase lead to the formation of “light” zeolitic cluster-organic frameworks.Display Omitted
Keywords: Zeolitic; Supertetrahedral; Nucleobase; “Light” frameworks;

The first example of Cu(I) complex with 5-pyrazolyl-2-thioxotetrahydro-4H-imidazol-4-one: Synthesis and structural characterization by Elena K. Beloglazkina; Nikolai I. Vorozhtsov; Lyudmila A. Sviridova; Oksana S. Grigorkevich; Diana D. Korablina; Anna A. Moiseeva; Nikolay V. Zyk; Alexander G. Majouga (86-89).
A new organic ligand 3-phenyl-5-((Z)-1,5-diphenyl-pyrazol-3-yl)methylene)-2-methylthio-4,5-dihydro-imidazol-4-one (L) has been synthesized by a two step reaction sequence starting from 3-phenyl-2-thiohydantoin and 3-formyl-pyrazoline. The complex of copper(I) with L2СuClO4 composition was obtained by the reactions of this ligand with Сu(ClO4)2·6H2O; thus, the reduction of copper(II) took place during the complex formation. The crystal structure of synthesized complex has been determined by X-ray analysis. Copper atom has a distorted tetrahedral ligand environment and coordinated by four nitrogen atoms of two ligand moieties; perchlorate ion does not participate in the coordination of the metal ion. This complex undergo reversible electrochemical reduction at − 0.32 V.A complex of copper(I) with new organic ligand 3-phenyl-5-((Z)-1,5-diphenyl-pyrazol-3-yl)methylene)-2-methylthio-4,5-dihydro-imidazol-4-one has been synthesized by the reactions of this ligand with Сu(ClO4)2·6H2O.Display Omitted
Keywords: Copper(I) complex; Pyrazoles; Pyrazolines; 2-alkylthio-imidazol-4-ones;

Synthesis, crystal structure and magnetic properties of a Cu(II) paddle-wheel complex with mixed bridges by Joan Soldevila-Sanmartín; José A. Ayllón; Teresa Calvet; Merce Font-Bardia; Concepción Domingo; Josefina Pons (90-93).
The synthesis and characterization of a mixed carboxylate paddle-wheel copper complex, with formula [Cu(μ-Pip)(μ-MeCO2)(MeOH)]2 (Pip = piperonylate or 1,3-benzodioxole-5-carboxylate and MeCO2  = acetate), is here reported. The described compound is a binuclear complex, each pair of similar carboxylate ligands occupying mutually trans bridging positions, while the methanol occupies the apical positions. The dimers are arranged into 2D layers in the bc plane through a network of O-H ⋯ O hydrogen bonds established between the methanol and the acetate ligand. Magnetic studies showed a strong antiferromagnetic Cu ⋯ Cu interaction (J  = − 308 cm− 1), in agreement with the presence of four μ-κO-κO′ carboxylates bridging the metallic centers in the binuclear complex.Synthesis and characterization of a copper(II) mixed carboxylate paddle wheel compound.Display Omitted
Keywords: Supramolecular networks; Mixed bridges; Piperonylic acid; Copper(II) heteroleptic paddle-wheel;

Copper polytellurite-chlorides with A 2 + cations (A =Cd, Pb) obtained by CVT reactions by Diana O. Zinyakhina; Oleg I. Siidra; Dmitri O. Charkin; Evgeniy V. Nazarchuk; Rimma S. Bubnova (94-97).
Two novel polytellurite-chlorides Pb5Cu2(Te4O11)Cl8 (1) and CdCu2(Te3O8)Cl2 (2) were obtained by a chemical vapor transport (CVT-reactions) reactions. The structure of 1 is based on [Pb5Cu2(Te4O11)]8 + one-dimensional blocks with full and partially occupied Cl sites around. The structure of 2 can be described as being formed by two types of one-dimensional units formed by Cd,Cu-centered polyhedra and TeO3, TeO4 pyramids sharing via common O atoms into electroneutral [CdCu2(Te3O8)Cl2]0 sheets. Obtaining of novel polytellurite-chlorides demonstrates effectiveness of CVT techniques for preparation of different tellurite-based complex layered materials.Two novel polytellurite-chlorides were obtained by a chemical vapor transport (CVT reactions) reactions.Display Omitted
Keywords: Copper; Tellurium; Polytellurites; CVT-reactions; Single crystal X-ray diffraction; Lone-pair;

Construction of two mixed-ligand coordination polymers presenting unusual polyrotaxane-like entanglements by Yongnian Yan; Siyu Liu; Mingming Guo; Xianmin Guo; Huadong Guo (98-101).
Two novel polyrotaxane-like coordination polymers, [Ni4(L)4(H2O)3(bpp)4]·3H2O (1) and [Cd4(L)4(bpp)3]·3H2O (2) (H2L = Me2Si(p-C6H4COOH)2, bpp = 1,3-bis(4-pyridyl)propane), have been synthesized and structurally characterized. Compound 1 features a 2D → 3D polyrotaxane array by the interlock of bilayer networks. Compound 2 exhibits an unusual 3D polyrotaxane-like self-threading framework. In addition, compound 2 shows an emission at 485 nm when it was excitated at 400 nm.Two novel polyrotaxane-like coordination polymers, [Ni4(L)4(H2O)3(bpp)4]·3H2O (1) and [Cd4(L)4(bpp)3]·3H2O (2) (H2L = Me2Si(p-C6H4COOH)2, bpp = 1,3-bis(4-pyridyl)propane), have been synthesized and structurally characterized. Compound 1 features a 2D → 3D polyrotaxane array by the interlock of bilayer networks. Compound 2 exhibits an unusual 3D polyrotaxane-like self-threading framework.Display Omitted
Keywords: Coordination polymers; Polyrotaxane; Self-threading; Luminescence;

A coumarin derivative with benzothiazole Schiff's base structure as chemosensor for cyanide and copper ions by Kangnan Wang; Wenjing Feng; Yibing Wang; Duxia Cao; Ruifang Guan; Xueying Yu; Qianqian Wu (102-104).
A new diethylamine coumarin Schiff's base chemosensor for cyanide and copper ions with benzothiazole as terminal group has been synthesized with very simple method. Its photophysical properties and recognition properties for cyanide and copper ions have also been examined. The compound is found to be able to recognize cyanide anions based on nucleophilic addition and recognize copper ions based on coordination reaction, all these processes can be completed shortly. The detection limits of the compound for CN and Cu2 + in acetonitrile are 0.0071 μM (CN) and 0.014 μM (Cu2 +), respectively. Its detection selectivity for cyanide and copper ions can be visualized with naked eye in solution and test paper. The color changes from reddish brown to white after the addition of cyanide or copper ions in test paper.A new diethylamine coumarin Schiff's base chemosensor for cyanide anions and copper ions with benzothiazole as terminal group has been synthesized with very simple method, which can recognize cyanide anions based on nucleophilic addition and recognize copper ions based on coordination reaction.Display Omitted
Keywords: Chemosensor; Coumarin; Cyanide; Copper ions; Quick recognition;

Synthesis and characterization of dinuclear silver(I) complexes with exchangeable nitrile ligands by Elnaz Hobbollahi; Markus Himmelsbach; Manuela List; Uwe Monkowius (105-108).
We have prepared three silver(I) complexes of the type [Ag2(P ∩ N)3(NCR)](BF4)2 with (R = Me, Et, Ph). The crystal structures of the complexes were determined. The nitrile ligands can be easily exchanged by re-crystallisation in the respective nitrile. The luminescence properties were also investigated.We have prepared three silver(I) complexes of the type [Ag2(P ∩ N)3(NCR)](BF4)2 with (R = Me, Et, Ph). The crystal structures of the complexes were determined. The nitrile ligands can be easily exchanged by re-crystallisation in the respective nitrile. The luminescence properties were also investigated.Display Omitted
Keywords: P ∩ N ligands; Silver; Crystal structure; Argentophilicity; Luminescence;

We have investigated the interactions of the lanthanum cation (La3 +) with cucurbit [6]uril (Q [6]) and its alkyl-substituted derivatives (SQ [6]s), including symmetrical tetramethylcucurbit [6]uril (TMeQ [6]), symmetrical dicyclohexanocucurbit [6]uril (1,4-DiCyHQ [6]), and percyclohexanocucurbit [6]uril (CyH6Q [6]), as well as the supramolecular assemblies formed with the aid of inorganic anions (NO3 and Cl) as structure-directing agents. Single-crystal X-ray diffraction analysis has revealed that the interaction results in the formation of three kinds of coordination complexes. The main driving forces may be the ion-dipole interaction of inorganic anions and the electropositive outer surface of Q[n].The interactions of the lanthanum cation (La3 +) with cucurbit [6]uril (Q [6]) and its alkyl-substituted derivatives (SQ [6]s), that the interaction results in the formation of three kinds of coordination complexes. The main driving forces may be the ion-dipole interaction of inorganic anions and the electropositive outer surface of Q[n].Display Omitted
Keywords: Cucurbit [6]uril; Alkyl-substituted cucurbit [6]uril; Lanthanum cation; Supramolecular assemblies; Inorganic anions; Crystal structures;

Two inorganic–organic hybrids based on saturated α-Keggin-type germanomolybdates with mixed organic components [H2DAP]2[Cu(PA)2][α-GeMo12O40]·8H2O (1) and [NH4]2[H8L] [Cu(PA)2][α-GeMo12O40]·8H2O (2) (DAP = 1.2-diaminopropane, HPA = 2-picolinic acid, H6L = 1,3-bis[tris(hydroxymethyl)methylamino]propane) have been obtained via the conventional aqueous solution method and structurally characterized by elemental analysis, IR spectra, thermogravimetric (TG) analysis and single-crystal X-ray diffraction. 1 stands for an one-dimensional linear organic–inorganic hybrid germanomolybdate chain constructed from classical Keggin [α-GeMo12O40]4 − units supported by [Cu(PA)2] linkers, whereas 2 represents the first hybrid germanomolybdate containing the H6L component and consists of a saturated α-Keggin polyanion [α-GeMo12O40]4 −, a diprotonated [H8L]2 + cation, a copper coordination complex [Cu(PA)2], two ammonium cations [NH4]+ and eight lattice water molecules. Furthermore, the electrochemical and electrocatalytic properties of 1 and 2 have also been investigated in detail.Two inorganic–organic hybrids based on saturated α-Keggin-type germanomolybdates with mixed organic components have been synthesized and their electrochemical properties have been probed.Display Omitted
Keywords: Polyoxometalate; Germanomolybdate; Electrochemistry;

Corrigendum to “Synthesis and structural characterization of copper(II) coordination polymers with 1,1,2,2-tetra(pyrazol-1-yl)ethane” [Inorg. Chem. Commun. 64 (2016) 23–26] by Evgeny Yu. Semitut; Vladislav Yu. Komarov; Evgeny Yu. Filatov; Anastasia S. Kuznetsova; Andrei I. Khlebnikov; Andrei S. Potapov (119).