Inorganic Chemistry Communications (v.13, #7)

Contents (iii-ix).

A new trinuclear copper complex based on germanomolybdate, {[Cu(phen)]3(μ 2-Cl)4}2[GeMo12O40] (1) (phen = 1,10-phenanthroline), has been hydrothermally synthesized and structurally characterized by elemental analysis, IR spectroscopy, TG analysis, X-ray powder diffraction (XRPD) and single-crystal X-ray diffraction. Single crystal X-ray analysis reveals that the structural unit of 1 consists of two coordination cations {[Cu(phen)]3(μ 2-Cl)4}2+ (1a) and a saturated Keggin-type germanomolybdate polyoxoanion [GeMo12O40]4−. In 1, the most intriguing feature is that each trinuclear copper cation {[Cu(phen)]3(μ 2-Cl)4}2+ is constructed from three [Cu(phen)]2+ cations bridged by four μ 2-Cl atoms. Magnetic measurements indicate 1 shows the ferromagnetic exchange interactions within CuII centers.A new trinuclear copper complex based on germanomolybdate {[Cu(phen)]3(μ 2-Cl)4}2[Ge Mo12O40] (phen = 1,10-phenanthroline) has been hydrothermally synthesized. In the compound, the most intriguing feature is that each trinuclear copper cation {[Cu(phen)]3(μ 2-Cl)4}2+ is constructed from three [Cu(phen)]2+ cations bridged by four μ 2-Cl atoms.Display Omitted
Keywords: Polyoxometalate; Germanomolybdate; Trinuclear copper complex;

Three one-dimensional coordination polymers, namely [ZnL 2(NO3)2] n (1), [CdL 2(NO3)2] n (2) and {[ZnL 2(H2O)2](ClO4)2•2L•2(H2O)} n (3), have been successfully synthesized based on a new unsymmetrical oxadiazole bridging ligand 2-[2-((3-pyridyl)methoxy)phenyl]-5-[(4-pyridyl)]-1,3,4-oxadiazole (L). Compounds 13 feature a similar one-dimensional infinite chain that consists of M2 L 2 building block (M = Zn(II) and Cd(II)). In 3, the uncoordinated L ligands are located between the [M2 L 2] n chains and serve as the agents to cross-link the chains by weak ππ and H-bonding interactions into a 2D network. In addition, the luminescent properties of L and 13 were primarily investigated in the solid state.Display Omitted
Keywords: Unsymmetrical oxadiazole ligand; Crystal structures; One-dimensional chain; Photoluminescence;

Mononuclear and dinuclear palladacycles derived from 1,3-bis(N,N-dimethylaminomethyl)benzenes, [{Pd(Cl)}2,6-(Me2NCH2)2C6H3] (1) and [1-{Pd(H2O)(Py)}-5-{Pd(OTf)(Py)-2,4-(Me2NCH2)2C6H2]-(OTf) (2), were synthesized and their structures were fully characterized. Complex 1 is a pincer complex with η3-mer NCN phenyl backbone, complex 2 is a bispalladium(II) complex with 1,2- and 4,5- two C,N-ortho phenyl backbone. Whereas the pincer complex 1 acted as a poor catalyst on methanolysis of fenitrothion, complex 2 demonstrated high catalytic activity in the same reactions, but there is no synergetic effect between two palladium ions. The results clearly indicate that a dissociable co-ligand in the palladacycle compounds significantly promotes the catalytic methanolysis.Two palladacycles derived from 1,3-bis(N,N-dimehylaminomethyl)benzenes showed different coordination modes and different catalytic activity in the methanolysis of fenitrothion.Display Omitted
Keywords: Palladacycle; Pincer complex; Methanolysis; Pesticide; Crystal structure;

A novel 3D (4, 8)-connected metal-organic framework of scu topology with two types of 1D channel constructed by methylenediisophthalic acid (H4MDIP) by Xian Cheng; Xian-ying Duan; Tao Liu; Fang-ming Wang; Chang-sheng Lu; Qing-jin Meng (818-821).
A novel coordination polymer 1 {[Zn5(MDIP)2(H2O)63-OH)2]·2H2O} n has been synthesized using methylenediisophthalic acid (H4MDIP) under hydrothermal conditions. Single-crystal X-ray diffraction analysis indicates that 1 shows a 3D porous framework with two types of 1D channel. The structure is further simplified by topology analysis which indicates a (4, 8)-connected net with a Schläfli symbol of (44.62)2(416.612) topology. Moreover, compound 1 displays a strong blue photoluminescent property.A novel coordination polymer has been successfully synthesized under hydrothermal conditions. Single-crystal X-ray diffraction analysis indicates that it shows a 3D porous framework with two types of 1D channel. The structure is further simplified by topology analysis which indicates a (4, 8)-connected net with a Schläfli symbol of (44.62)2(416.612) topology. Moreover, this compound displays a strong blue photoluminescent property.Display Omitted
Keywords: Methylenediisophthalic acid (H4DMIP); Pentanuclear cluster; Topology; Porous framework; Luminescence;

Two novel 1-D copper complexes {[CuII 2(Hbpdc)2]Cl2}2·2H2O (1) and CuI(H2bpdc)Cl (2) (H2bpdc = 2,2′- bipyridyl-5,5′-dicarboxylic acid) have been one-pot hydrothermally synthesized by reaction of H2bpdc, CuCl2·2H2O, PrCl3 and glacial acetic acid and structurally characterized by IR spectroscopy, X-ray photoelectron spectroscopy and single-crystal X-ray diffraction. Single-crystal structural analyses show that 1 is a novel 1-D stair-like chain constructed from centric tetra-copper clusters {[CuII 2(Hbpdc)2]Cl2}2 by means of Cu–O weak coordination interactions whereas 2 displays a 1-D comb-like chain built by [CuI(H2bpdc)Cl] units through Cl bridges. More interestingly, 1 and 2 were one-pot hydrothermally synthesized, which is very rare in synthetic chemistry. The photofluorescence properties of 1 and 2 have been investigated.Display Omitted
Keywords: Copper complexes; One-pot synthesis; 2,2′-Bipyridyl-5,5′-dicarboxylic acid; Carboxylate;

A rare ferromagnetic manganese(III) hexanuclear cluster by Xueyan Song; Ruina Liu; Sai Zhang; Licun Li (828-830).
The reaction of salicylaldoxime (H2sao) with Mn(ClO4)2·6H2O, sodium 3,5-dinitrobenzoate and NEt4(OH) in MeOH/EtOH affords a MnIII hexanuclear compound [Mn6O2(sao)6(ArCO2)2(MeOH)2(EtOH)2(H2O)2] (ArCO2H = 3,5-dinitrobenzoic acid) (1). 1 contains [MnIII 63-O)2]14+ core, with a known structural type in the family of Mn6 clusters. Temperature-dependent magnetic susceptibility study shows presence of predominant ferromagnetic interactions between MnIII ions. Alternating current (ac) susceptibility measurements reveal a frequency-dependent out-of-phase (χM′′) signal below 4 K, suggesting 1 to be a single-molecule magnet (SMM).A new Mn6 SMM with salicylaldoxime ligand was synthesized and characterized crystallographically and magnetically that shows a rare ferromagnetic interaction due to the large Mn–N–O–Mn torsion angle.Display Omitted
Keywords: Salicylaldoxime; MnIII 6 cluster; Ferromagnetic interaction; SMM; X-ray Structure;

Hydrothermal synthesis and structure of three novel open-framework lanthanide sulfate–oxalates by Li Li; Ranbo Yu; Dan Wang; Xiaoyong Lai; Dan Mao; Mei Yang (831-833).
Three novel hybrid open-framework lanthanide sulfate–oxalates, {[NH4][Ln(H2O)(SO4)(C2O4)]} n [Ln = Y (I), La (II), Sm (III)] have been synthesized via hydrothermal reaction, and characterized by single crystal X-ray diffraction, powder X-ray diffraction, infrared spectrophotometry, thermal gravimetric analysis and fluorescence analysis. These three compounds were isostructural, and all crystallized into the monoclinic system with space group of P21  /  n. In their structures, LnO8 dodecahedra, SO4 tetrahedral and C2O4 groups are linked to give rise to a three-dimensional open-framework, which contains two kinds of 12-membered ring channel systems running along the a and b axis, respectively.Three novel lanthanide sulfate-oxalates, {[NH4][Ln(H2O)(SO4)(C2O4)]} n (Ln = Y, La, Sm) were obtained. In their structures, SO4 tetrahedron connects with LnO8 dodecahedron via corner-sharing by using its three O atoms to form 1D chains, which are fused together by C2O4 2− ligand to construct 3D framework with two kinds of 12-membered ring channel systems running along the a and b axis, respectively.Display Omitted
Keywords: Hydrothermal synthesis; Inorganic–organic hybrid material; Open-framework; Crystal structure;

(en)Mn2(V2O7): A 3D manganese vanadate built by Mn–O layers and two types of pillars of V2O7 and en bridges by Gao-Juan Cao; Shou-Tian Zheng; Wei-Hui Fang; Guo-Yu Yang (834-836).
An unexpected 3D manganese vanadate (en)Mn2(V2O7) (1) (en = ethylenediamine) has been hydrothermally obtained by H2E2Ge2O3 (E = − CH2CH2COO) ligands and well-prepared mixture of V–Mn-amine and characterized by IR spectroscopy, elemental analysis, thermal stability and powder X-ray diffraction. Single-crystal X-ray diffraction analysis reveals that the structure is a novel pillared-layer, in which MnO5N octahedra are corner-linked to form an infinite sheet with 4-membered rings (MRs) and further condensed to the 3D framework. The most prominent feature of 1 is the connection between the sheets via double bridges, namely, inorganic V2O7 dimeric units and organic en molecules. It is noteworthy that inorganic and organic double bridges between sheets have not been seen in manganese vanadates.Display OmittedThe first 3D manganese vanadate (en)Mn2(V2O7) based the Mn–O layers and two types of linkers, inorganic V2O7 dimer and organic en, has been hydrothermally synthesized and structurally characterized.
Keywords: Hydrothermal synthesis; Manganese vanadate; Open-framework; Inorganic–organic hybrids; Double bridges;

The low valent titanocene(II) source Cp2Ti(η 2-Me3SiC2SiMe3) 1 reacts with selenium dioxide ( 2 ) to obtain a tetranuclear selenium and oxygen bridged titanocene(IV) [{Cp2Ti(µ 2-O; µ 2-Se)CpTi}2(µ 2-O)] 6 . The molecular structure was confirmed by X-ray analysis.The low valent titanocene(II) source Cp2Ti(η 2-Me3SiC2SiMe3) 1 reacts with selenium dioxide ( 2 ) to obtain a tetranuclear selenium and oxygen bridged titanocene(IV) [{Cp2Ti(µ 2-O; µ 2-Se)CpTi}2(µ 2-O)] 6 . The molecular structure was confirmed by X-ray analysis.Display Omitted
Keywords: Titanocene; Ti(II); Ti(IV); Selenium dioxide;

Asymmetrical modification of Wells–Dawson POMs by Cu–phnz coordination polymers by Jingquan Sha; Liye Liang; Zhiwei Yang; Cheng Wang; Youle Qu; Yuguang Lv (840-843).
A new asymmetrically modifying Wells–Dawson polyoxometalates (POMs), {[Cu3(C12N2H8)5](H2P2W18O62)}·0.5[Cu2(C12N2H8)3]·(C12N2H8), have been synthesized and structurally characterized. X-ray diffraction analysis reveals that the Wells–Dawson POMs are asymmetrically functionalized by [Cu (C12N2H8)2] monomers and [Cu2(C12N2H8)3] dimers, and the asymmetrical coordination mode to stabilize the Wells–Dawson POMs has never been found in the POM chemistry hitherto. In the crystal engineering point of view, the bigger steric hindrance, the polycyclic aromatic bridging and conjugated action of the phnz molecules facilitate the formation of asymmetrical coordination mode of the Wells–Dawson POMs. Additionally, the electrochemical behavior of the title compound modifying CPE (1-CPE) has been studied.The first saturated Wells–Dawson POM is asymmetrically modified by a [Cu(C12N2H8)2] monomer and a [Cu2(C12N2H8)3] dimer, and the asymmetrical coordination mode to stabilize the Wells–Dawson POMs has never been found in the POM chemistry hitherto.Display Omitted
Keywords: Hydrothermal synthesis; Wells–Dawson polyoxometalate; Asymmetrically modification; Electrochemical properties;

The self-assembly reaction of the flexible ligand 1,2-bis(1,2,4-triazol-4-yl)ethane (btre) and AgClO4 gives a novel coordination polymer {[Ag(btre)](ClO4)} n (1). Adjacent two silver(I) atoms are linked through four nitrogen atoms of two N1/N2 atoms of two btre ligands and form Ag2N4 6-membered rings and construct a one-dimensional chain. The chains extend through btre bridges in four different directions alternatively to construct a novel three-dimensional network. Compound 1 exhibits luminescence emission maxima at 326 nm upon excitation at 260 nm in the solid state at room temperature. The anion exchange of compound 1 with BF4 and NO3 occurs smoothly in a typical aqueous media.A novel coordination polymer {[Ag(btre)](ClO4)} n (1) was synthesized. Adjacent two silver(I) atoms are linked through four nitrogen atoms of two N1/N2 atoms of two btre ligands and form a one-dimensional chain. The chains extend through btre bridges in four different directions alternatively to construct a novel three-dimensional network.Display Omitted
Keywords: Three-dimensional network; Coordination polymer; Silver complex; Bis(1,2,4-triazol-4-yl)ethane; Anion exchange;

Imidazolate-bridged dinuclear copper(II) complex with new macrocyclic ligand bearing two 1H-imidazol-4-yl-pendants by Zhao-Peng Qi; Kai Cai; Qing Yuan; Taka-aki Okamura; Zheng-Shuai Bai; Wei-Yin Sun; Norikazu Ueyama (847-851).
A new imidazolate-bridged dicopper complex [Cu2(L)(Im)](ClO4)3·H2O has been synthesized by reaction of new macrocyclic ligand 6, 20-bis(1H-imidazol-4-ylmethyl)-3, 6, 9, 17, 20, 23-hexaazatricyclo[24.3.1.111,15]hentriaconta-1(29), 11, 13, 15(31), 26(30), 27-hexaene (L) with Cu(ClO4)2⋅6H2O and imidazole, and structurally characterized as a model compound of Cu2Zn2-SOD. There is antiferromagnetic interaction with g  = 2.08, − 2  J  = 66.5 cm− 1 between the two imidazolate-bridged Cu(II) atoms. The complex displays moderate SOD activity with IC50 of 1.42 μM.A new imidazolate-bridged dicopper complex [Cu2(L)(Im)](ClO4)3·H2O [L = 6, 20-bis(1H-imidazol-4-ylmethyl)-3, 6, 9, 17, 20, 23-hexaazatricyclo[24.3.1.111,15]hentriaconta-1(29), 11, 13, 15(31), 26(30), 27-hexaene has been synthesized and structurally characterized as a model compound of Cu2Zn2-SOD.Display Omitted
Keywords: Cu2Zn2-SOD; Macrocyclic ligand; Magnetic property; Model compound; SOD-like activity;

A 3D homochiral framework with rare 49·66 structural topology constructed by unique triple-stranded helices by Yanqing Xu; Jinshan Xi; Wei Wei; Yingnan Chi; Changwen Hu (852-854).
A novel homochiral 3D copper(II)-organic framework has been synthesized under solvothermal reaction. Single-crystal X-ray diffraction reveals it features a fascinating 3D cationic framework with SO4 2 and water molecule occupying its central of channel. Moreover, the unique triple-stranded helices in the structure based on tetranuclear CopperII Cluster Node are further linked by the UCA ligand (UCA = Urocanic acid) and give rise to the resultant homochiral network, which can be described as a rarely observed 4966 topology.A novel homochiral 3D copper(II)-organic framework has been synthesized under solvothermal reaction. It features a fascinating 3D cationic framework with SO4 2- and water molecule occupying its central of channel. Moreover, the unique triple-stranded helices in the structure based on tetranuclear CopperII Cluster Node are further linked by the UCA ligand (Urocanic acid) and give rise to the resultant homochiral network in a rarely observed 4966 topology.Display Omitted
Keywords: Chiral channel; Topology; Urocanic acid; Triple-stranded helix;

Display Omitted
Keywords: Co(II) complex; Nicotinamide; Hydrogen bond; Biological activity; VEGFR-2 TK inhibitor;

A new clover-shaped trinuclear uranium(VI) complex: Synthesis, structure and photoluminescence property by Di Sun; Na Zhang; Qin-Juan Xu; Rong-Bin Huang; Lan-Sun Zheng (859-862).
A new clover-shaped trinuclear uranium(VI) complex of the formula [(UO2)3(phen)33-O)(μ2-OH)2(NO2)]·NO3·3DMF·H2O (1) (phen = 1,10-phenanthroline, DMF = N,N′-dimethylformamide) was prepared by reaction of UO2(NO3)2·6H2O and phen under ultrasonic condition. X-ray single-crystal diffraction analysis shows that each U(VI) ion is in a seven-coordinated pentagonal–bipyramidal environment, with two O atoms in axial positions forming a uranyl ion. Each uranyl ion in 1 is coordinated by one chelating phen ligand and three O atoms at the equatorial plane. Interestingly, one central μ3-oxo incorporates two μ2-OH and one NO2 to link uranyl ions into a clover-shaped motif. The molecules of 1 are packed within the space through hydrogen bonds, π···π and lone-pair···π interactions. The solid diffuse-reflectance UV/vis and photoluminescence spectra of 1 were measured and discussed.Display Omitted
Keywords: Uranium(VI); 1,10-Phenanthroline; Photoluminescence;

Assembly of Cd(II) nitrate with a novel tripyridyltriazole building block 3-(2-pyridyl)-4,5-bis(4-pyridyl)-1,2,4-triazole (L 1 ) and pseudohalide anion dicyanamide (dca) or azide (N3) yields two coordination polymers {[Cd(L 1 )2(dca)2](H2O)2} n (1) and {[Cd2(L 1 )(μ1,1-N3)21,3-N3)(N3)](H2O)1.5} n (2). Single crystal X-ray diffraction analysis indicates that the Cd(II) centers in 1 are bridged by the bidentate L 1 ligands to form 1D arrays, which are further extended to a 3D network via hydrogen bonding and aromatic stacking. Significantly, the L 1 ligands in 2 display the unusual pentadentate coordination and the azide anions take different μ1,1-, μ1,3-, and unidentate binding modes, interlinking the Cd(II) ions to afford a complicated 3D open framework with the inclusion of lattice water guests. Both complexes exhibit strong solid state fluorescent emissions at room temperature.This work presents two fluorescent Cd(II) coordination polymers based on a novel tripyridyltriazole tecton and different pseudohalide anions (dicyanamide vs. azide), which exhibit distinct 1D double-chain motif and 3D channel-like coordination framework.Display Omitted
Keywords: Cd(II) coordination polymers; Crystal structures; Fluorescence; Tripyridyltriazole ligand; Pseudohalide anions;

A novel water soluble octaazamacrocyclic dinuclear copper(II) complex with tetra-pendant arms: Crystal structure and SOD activity by Qimao Huang; Shi Rong Li; Zhenghe Peng; Hong Zhou; Zhiquan Pan; Xuelei Hu (867-869).
A novel water-soluble octaazamacrocyclic dinuclear copper(II) complex with tetra-pendant arms, [Cu2L] Cl2∙ 5H2O, was synthesized by [2+2] condensation between 2, 6-diformyl-4-chlorophenol and N, N, N', N'-tetrakis(2'-aminoethyl)-1, 2-diaminopropane in the presence of Cu(OAc)2·H2O. Single-crystal X-ray structural analysis reveals that every copper(II) adopts a trigonal bipyramid coordination configuration. Macrocyclic units are joined together by strong ππ stacking interaction with centroid–centroid distance of 3.658 Å. Water pentamers with O–O distances of 2.099–2.841 Å are observed in the complex. The activity of superoxide dismutase of the complex has been investigated by the nitro blue tetrazolium method.A novel tetra-pendant arms water soluble dinuclear copper(II) macrocyclic complex was synthesized and characterized, and the SOD activity was also investigated.Display Omitted
Keywords: Copper complex; Tetra-pendant arms; SOD activity; Crystal structure;

Herein, we report the first evidence of transition-metal MOF for luminescent sensing of aqueous metal ions, whilst a new mechanism, cation exchange for luminescent sensors in aqueous solution, has been disclosed.Display Omitted
Keywords: MOF; Porous material; Luminescent sensing; Cation exchange;

Three hydrogen-bonded nanotubular zinc(II) complexes of N-(9-anthracenyl)-N′-(4-pyridyl)-urea by Qilong Zhao; Xiao-Juan Yang; Chuandong Jia; Biao Wu (873-877).
Three hydrogen-bonded nanotubular zinc(II) complexes of a monodentate ligand N-(9-anthracenyl)-N′-(4-pyridyl)urea (L), [Zn(OAc)2L2]∙H2O (1), [ZnBr(OAc)L2]∙H2O (2) and [ZnCl(OAc)L2]∙4H2O (3), were synthesized and structurally characterized. In the complexes, the central metal ion is tetrahedrally coordinated by the pyridyl nitrogen atoms of two ligands and different anions, while the urea groups of the ligands self-associate into the typical urea tape through R2 1(6) hydrogen bonds, which are essential for the formation of the nanotubes. The fluorescence properties of ligand L and the complexes were studied in the solid state at room temperature.We report three nanotubular zinc(II) complexes [Zn(OAc)2  L2]∙H2O (1), [ZnBr(OAc)L2]∙H2O (2) and [ZnCl(OAc)L2]∙4H2O (3) of a monodentate ligand N-(9-anthracenyl)-N′-(4-pyridyl)urea (L). The metal ion is four-coordinated by two ligands and different anions, thus forming a half square which aligns with each other through the typical N–H⋯O hydrogen bonding of urea groups to form the nanotubes.Display Omitted
Keywords: Pyridylurea; Monodentate; Hydrogen-bonded nanotubes; Fluorescence;

Clicking not cooking: Functionalization of 2,2′:6′,2″-terpyridines by diol–boric acid interactions by Edwin C. Constable; Guoqi Zhang; Catherine E. Housecroft; Markus Neuburger (878-881).
A diol–boric acid condensation is a simple type of CLICK reaction that can be applied to give a family of related ligands. It is exemplified by the reaction of 4′-(3,4-dihydroxyphenyl)-2,2′:6′,2″-terpyridine (1) with naphthalene-1-boronic acid. The single crystal structures of 1 . MeOH and [Fe(1)2][BF4]2∙ 4H2O∙0.2CH3CN are presented.The reaction of 4′-(3,4-dihydroxyphenyl)-2,2′:6′,2″-terpyridine (1) with naphthalene-1-boronic acid illustrates a modular strategy for the production of a new family of ligands. Complexes of the type [M(1)2]2+ (exemplified for M = Fe) are potential precursors for diolboronic acid CLICK-type reactions.Display Omitted
Keywords: 2,2′:6′,2″-Terpyridine; Boronic acid; Modular strategy; Structure;

Anion-responsive luminescent Eu3+ complexes with ring-like rigid quinoline–amide ligands by Hai-Ping Wang; Hai-Gang Li; Guang-Nong Lu; Ning Tang; Wei-Sheng Liu; Yu Tang (882-886).
Two novel ring-like rigid quinoline–amide ligands, 2-[2-(1,3-dioxolan-2-yl)quinolin-8-yloxy]-N-benzylacetamide (LI) and 3-[2-(1,3-dioxolan-2-yl)quinolin-8-yloxy]-1,1-diphenylpropan-2-one (LII), were designed to assemble the anion-responsive luminescent europium complexes. Crystallographic studies of the EuLI(NO3)3 and EuLII(NO3)3 revealed that the tetradentate ligands LI and LII cooperatively coordinated with Eu3+ ion and some available sites around central europium ions for guest anions were reserved in the complexes. The luminescent properties of the Eu(III) nitrate complexes in acetonitrile solutions were investigated. And the lowest triplet state energy levels of the ligands are well placed to allow energy transfer to the resonance level of Eu(III). At the same time, the luminescence titration experiments and the Job's plot analysis demonstrated the formation of 1:1 complexes in the solutions. The luminescence intensities at 616 nm were enhanced by addition of NO3 or Cl anion to the mixed acetonitrile solutions of Eu(CF3SO3)3 and the ligands.Two novel europium complexes with ring-like rigid quinoline–amide ligands were designed, assembled, and the crystal structures and anion-responsive luminescent properties were investigated.Display Omitted
Keywords: Anion-responsive; Luminescence; Europium complex; Quinoline–amide ligand;

Encapsulation of unique anionic carboxylic acid/water cluster chains into channels of a three-dimensional cationic framework by En Tang; Yu-Mei Dai; Yang Chen; Jian-Ping Lang; Yuan-Gen Yao; Ng-Seik Weng (887-890).
The hydrothermal reactions of CuCl with 1,3-bis(4-pyridyl)propane (bpp), 1,3-benzenedicarboxylic acid (1,3-H2bdc), and KOH in water afforded {[Cu8Cl4(bpp)8][(1,3-Hbdc)4(H2O)9.5]} n (1). Single-crystal X-ray diffraction revealed that 1 has anionic [(1,3-Hbdc)4(H2O)9.5] n 4n water cluster chains that are encapsulated into the 1D channels of a 3-D [Cu8Cl4(bpp)8] n 4n+ cationic framework. The thermal and luminescent properties of 1 in the solid state were also investigated.Reactions of CuCl with 1,3-bis(4-pyridyl)propane (bpp), 1,3-benzenedicarboxylic acid (1,3-H2bdc), KOH under hydrothermal conditions produced {[Cu8Cl4(bpp)8][(1,3-Hbdc)4(H2O)9.5]} n , in which anionic [(1,3-Hbdc)4(H2O)9.5] n 4n water cluster chains are enclosed into the 1D channels of a 3D [Cu8Cl4(bpp)8] n 4n+ cationic framework.Display Omitted
Keywords: Solvothermal synthesis; 1,3-Bis(4-pyridyl)propane; 1,3-Benzenedicarboxylic acid; Anionic water cluster chain; 3D cationic framework;

Using 1,2,4-triazole and adipic acid as coligands, a novel three-dimensional metal–organic framework, namely {[Cd4Cl(trz)5(adi)]·H2O} n (1) (trz = 1,2,4-triazole, adi = adipic acid) was hydrothermally synthesized and characterized. The crystal structure reveals that three independent Cd(II) centers are linked via one μ3-Cl and two μ3-COO groups to form a unique [Cd4Cl(CO2)2] tetranuclear cluster, which acts as a 10-connected node joining adjacent four tetranuclear subunits and six 3-connected trz nodes to give a novel (3,10)-connected topological net with the Schläfli symbol (43)(41862562).A novel 3D metal–organic framework, namely {[Cd4Cl(trz)5(adi)]·H2O}n (1) (trz = 1,2,4-triazole, adi = adipic acid) was prepared under hydrothermal condition and characterized by X-ray single-crystal diffraction, elemental analysis, X-ray powder diffraction (XRPD), FT-IR, Raman spectrum, TG/DTA and photoluminescence measurements.Display Omitted
Keywords: Cadmium; 1,2,4-triazole; Adipic acid; Metal–organic framework; Topology;

Synthesis, crystal structure and magnetic properties of a new 2D cyanide-bridged heterobimetallic Cr(I)–Mn(III) complex by Daopeng Zhang; Li-Fang Zhang; Hailong Wang; Yuting Chen; Zhong-Hai Ni; Jianzhuang Jiang (895-898).
A new two-dimensional cyanide-bridged Cr(I)–Mn(III) coordination polymer {K[Mn(L)]2[Cr(CN)5NO]}·CH3CN (1) (L = N,N-ethylene-bis(3-methoxysalicylideneiminate)) has been successfully synthesized by the reaction of K3[Cr(CN)5NO] with [Mn(L)(H2O)2]ClO4 and characterized by elemental analysis, FT-IR and X-ray structure determination. Investigation systematic over magnetic susceptibility of the complex reveals the overall antiferromagnetic interaction between the cyanide-bridged Cr(I) ion and Mn(III) ion and its 3D antiferromagnetic ordering behavior with typical metamagnetic character below 12.5 K.A new two-dimensional cyanide-bridged Cr(I)–Mn(III) coordination polymer {K[Mn(L)]2[Cr(CN)5NO]}·CH3CN (1) (L = N,N-ethylene-bis(3-methoxysalicylideneiminate)) has been successfully assembled by the reaction of K3[Cr(CN)5NO] with [Mn(L)(H2O)2]ClO4 and characterized by elemental analysis, FT-IR and X-ray structure determination. Investigation systematic over magnetic susceptibility of the complex reveals the overall antiferromagnetic interaction between Cr(I) ion and Mn(III) ion through cyanide bridge and its 3D antiferromagnetic ordering behavior with typical metamagnetic character below 12.5 K.Display Omitted
Keywords: Synthesis; Crystal structure; Magnetic properties; Cyanide-bridged; Chromium; Manganese;