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Three tantalum oxyfluoride compounds, [Fe(phen)3][Ta2OF10] ( 1), [Fe(phen)3][Ta2OF10] ·2H2O ( 2), and [Ru(phen)3]2[Ta2OF10][TaF6]2 ( 3), were synthesized by a two-step hydrothermal method and their crystal structures were characterized by single-crystal X-ray diffraction. The unique characters of these compounds are the [ M(phen)3]2+ cations. C-H ···F interactions exist between cations and anions and O-H ···F hydrogen bonds exist between the water molecules and anions. Photocurrent measurements reveal that compound 3 is the photoelectric responsive with the moderate current intensity. [ABSTRACT FROM AUTHOR]

Solvothermal reactions of CdCl2-2.5H20 with 4,4'-bis(benzoimidazol-l-yl)bibenzene (bimbb) and 1,4-benzenedicarboxylic acid (l,4-H2bdc), 4,4'-biphenyIdicarboxylic acid (4,4'-H2bpdb), 5-methyl- 1,3-benzenedicarboxylic acid (5-Me-l,3-H2bdc), or 1,3,5-benzenetricarboxylic acid (H3btc) afforded four 3-D metal-organic frameworks, {[Cd2(l,4-bdc)2(bimbb)2]H20}n (1), {[Cd2(4,4'-bpdb)2(bimbb)(H20)2]}„ (2), [Cd2(5-Me-l,3-bdc)2(bimbb)]n (3), and {[Cd3(btc)2(bimbb)(H20)2]-2H20}n (4). Complexes 1-4 were characterized by elemental analysis, IR spectroscopy, powder X-ray powder diffraction, and single-crystal X-ray diffraction. 1 possesses a 3-D framework with 2-D undulated (8,4) layers which are further connected by bimbb pillars. 2 forms a 3-D pillared-layer framework constructed through 2-D undulated (4,4) layers and bimbb pillars. 3 has 1 -D ribbons of [Cd4(5-Mel, 3-bdc)4]n which are linked by bimbb to form a 3-D structure. 4 exhibits a 3-D pillared-bilayer framework consisting of (6,3) double-decker [Cd9(btc)6(u-OH2)6]„ layers and bimbb pillars. The Schlȁfli symbols for the four frameworks are (4²-6³-8)(4²-65-8³) (1), (44-66) (2), (44-6²)(46-64) (3), and (6³)(610) (4). The photoluminescent properties of 1-4 were also investigated. [ABSTRACT FROM AUTHOR]

Abstract: Reaction of silver nitrate with N,N,N′,N′-tetra(diphenylphosphanylmethyl)ethylenediamine (dppeda) in the presence of aminothiocarbamide in CH2Cl2/MeOH afforded an unexpected and low-yield binuclear complex [Ag2(dppatc)2](NO3)2·2MeOH (dppatc=N,N-bis(diphenylphosphanylmethyl)aminothiocarbamide) (1). An X-ray analysis revealed that the [Ag2(dppatc)2]2+ dication of 1 contains a centrosymmetric double half-open cage structure in which two Ag centers are bridged by a pair of the heteroscopionate dppatc ligands via four Ag-μ-S and four AgThe in situ-formed dppatc ligand in 1 could be readily generated by one-pot and high-yield reaction of diphenylphosphine with formaldehyde and aminothiocarbamide. Further reaction of AgNO3 with dppatc could produce 1 in a relatively high yield. The results provided an efficient route to the synthesis of dppatc and also an interesting insight into its coordination chemistry. [Copyright &y& Elsevier]

Abstract: Diffusion reactions of CuI with N,N,N′,N′-tetra(diphenylphosphanylmethyl)ethylene diamine) (dppeda) and 1,4-N,N,N′,N′-tetra(diphenylphosphanylmethyl)benzene diamine (dpppda) in MeCN/toluene in a zigzag glass tube or solvothermal reactions of CuI and dppeda or dpppda in MeCN produced two [Cu x I x ]-based coordination polymers, [Cu2I2(dppeda)]·2MeCN (1·2MeCN) and [Cu4I4(dpppda)]·MeCN (2·MeCN), respectively. Both compounds were characterized by elemental analysis, IR spectroscopy, 1H and 31P{1H} NMR, ESI-MS and thermogravimetric analysis, and their structures were determined by single crystal X-ray diffraction. In 1, [Cu2I2] cores are interconnected by dppeda ligands in a μ-η 2:η 2 end-to-end mode to form a 1D chain, while in 2 stair-like [Cu4I4] cores are linked by dpppda ligands in a unique Z-shaped μ-η 2:η 2 side-by-side mode to produce the other kind of 1D chain. [Copyright &y& Elsevier]

Abstract: Reactions of {[PPh4][WS4M]} n (1: M=Ag; 2: M=Cu) with equimolar 1,2-bis(diphenylphosphino)ethane (dppe) in CH2Cl2 produced two tetranuclear anionic clusters [PPh4]2[(WS4)M(μ-dppe)2M(WS4)]·2CH2Cl2 (3: M=Ag; 4: M=Cu). Both clusters were characterized by elemental analysis, IR, UV–vis, 1H NMR and single-crystal X-ray analysis. The centrosymmetric structure of the cluster dianion of 3 or 4 consists of two [WS4M] cluster fragments linked by a pair of dppe ligands. The third-order nonlinear optical (NLO) properties of 3 and 4 in solution were investigated by femtosecond degenerate four-wave mixing (DFWM) technique with a 80-fs pulsed laser at 800nm. Both compounds exhibited strong NLO performances with χ (3) =3.30×10−14 esu (3) or 2.89×10−14 esu (4), and γ =1.064×10−31 esu (3) or 1.059×10−31 esu (4). [Copyright &y& Elsevier]

Abstract: Two main-group metal complexes of the zwitterionic ammonium thiolate complexes, [M(Tab)3](ClO4) n (Tab=4-(trimethylammonio)benzenethiolate) (1: M=Pb, n =2; 2: M=Bi, n =3), were prepared by electrochemical oxidation of Pb or Bi electrode in MeCN containing Tab and Et4NClO4. Each M atom in 1 and 2 is coordinated by three S atoms of three Tab ligands, forming a trigonal pyramidal coordination geometry. The resulting [M(Tab)3] n+ cations are interconnected by secondary M⋯S interactions to form two different 1D cationic chains. The electrochemical properties of 1 and 2 were also investigated by cyclic voltammetry. [Copyright &y& Elsevier]

Abstract: A novel lead(II)/4-pya coordination polymer [Pb(4-pya)2] n (1) (4-pya= trans-4-pyridylacrylate) was synthesized and structurally characterized. Single-crystal X-ray diffraction revealed that 1 consists of a 3D network constructed from the 4-pya bridging ligand and {Pb2O2} subunits, in which each eight-coordinated Pb(II) ion adopts a dodecahedral coordination geometry. The thermal and luminescent properties of 1 in the solid state were investigated. [Copyright &y& Elsevier]

Abstract: Reactions of CuX (X=CN, NCS) with bis(3,5-dimethylpyrazolyl)methane (dmpzm) gave rise to two new coordination polymers [CuX(dmpzm)] n (X=CN (2), NCS (3)). Compounds 2 and 3 were characterized by elemental analysis, IR spectra and X-ray crystallography. The molecular structure of 2 has a one-dimensional zigzag chain of [CuCN(dmpzm)] units while that of 3 consists of a one-dimensional single-strand spiral chain of [CuNCS(dmpzm)] units. The luminescence properties of CuX (X=I (1), CN (2), NCS (3)) adducts of dmpzm along with free dmpzm were also investigated. [Copyright &y& Elsevier]

Treatment of [Et4N][Tp*WS3] (1) (Tp* = hydridotris(3,5-dimethylpyrazol-1-yl)borate)with [Cu(MeCN)4]PF6and NH4PF6(molar ratio= 1:2:1) in excess pyridine (py) produced one discrete trinuclearcluster [Et4N][Tp*WS3Cu2(py)3](PF6)2(2). Reactionsof 1with [Cu(MeCN)4]PF6, NH4PF6, and 4,4′-bipyridine (4,4′-bipy)(or 1,2-bis(4-pyridyl)ethane (bpea)) (molar ratio = 1:2:1:2) affordeda two-dimensional (2D) [Tp*WS3Cu2]-based cationicpolymer {[Tp*WS3Cu2(4,4′-bipy)1.5](PF6)·2MeCN}n(3·2MeCN) and a one-dimensional (1D) [Tp*WS3Cu2]-based cationic polymer {[(Tp*WS3Cu2)2(bpea)3](PF6)2·2DMF}n(4·2DMF),respectively. Analogous reactions of 1with CuCN, NH4PF6, and 4,4′-bipy (or 1,2-bis(4-pyridyl)ethylene(bpee)) (molar ratio = 1:2:1:2) gave rise to a 2D [Tp*WS3Cu2]-based polymer {[Tp*WS3Cu2(μ-CN)(4,4′-bipy)0.5]·MeCN}n(5·MeCN) and a three-dimensional (3D) [Tp*WS3Cu2]-based anionic polymer {[Et4N][(Tp*WS3Cu2)2{Cu(μ-CN)2.5}2(bpee)]·3MeCN}n(6·3MeCN), respectively. Compounds 2–6were characterized by elemental analysis, IR, UV–vis, 1H NMR, and single-crystal X-ray diffraction. The cluster cationof 2has a butterfly-shaped [Tp*WS3Cu2] core structure in which one [Tp*WS3] unit bindstwo Cu atoms via one μ3-S and two μ-S atoms. 3consists of one 2D (6,3) network in which butterfly-shaped[Tp*WS3Cu2] units are interlinked by the 4,4′-bipyligands. 4contains butterfly-shaped [Tp*WS3Cu2] units that are interconnected by bpea bridges toform one 1D zigzag chain. 5holds another 2D (6,3) networkin which the 1D [{Tp*WS3Cu2}2(μ-CN)2]nchains are bridged by 4,4′-bipyligands. 6possesses a 3-connected 3D (103) anionic net in which each 2D [{(Tp*WS3Cu2)2Cu2(μ-CN)4}4(μ-CN)4(bpee)2]n4n–network is interlinked to its neighboringones via pairs of bpee ligands. The isolation of 2–6with unstable [Tp*WS3Cu2] cores maybe ascribed to the coordination of N-donor ligands or linkers at Cu(I)centers of these cores and the formation of polydimensional [Tp*WS3Cu2]-based frameworks (in the case of 3–5). The third-order nonlinear optical (NLO)properties of 2–6in DMF were alsoinvestigated by using a femtosecond degenerate four-wave mixing (DFWM)technique at 800 nm. [ABSTRACT FROM AUTHOR]

Abstract: Reactions of CuX (X=I, Br) with TabHPF6 (Tab=4-(trimethylammonio)benzenethiolate) under the existence of Et3N or Et4NI in open air gave rise to three novel halogencuprate(I) complexes with 4-(trimethylammonio)phenyldisulphide (Tab–Tab): [Tab–Tab][CuX3] (1: X=I; 2: X=Br) and {[Tab–Tab][Cu2I4]} n (3). Compounds 1–3 are characterized by elemental analysis, IR spectra and X-ray crystallography. It was found that the Tab–Tab dication in 1–3 serves as a counterion to maintain the electrical neutrality of 1–3. The dianions of 1 and 2 have planar triangular geometry with each halide atom being bound to the central trigonally coordinated copper atom. The dianion structure of 3 has a unique one-dimensional wavy chain composed of butterfly shaped [Cu2I3] units linked by μ-I bridges. The luminescence properties of 1–3 along with [Tab–Tab]I2 have also been investigated. [Copyright &y& Elsevier]

Two complexes of 4,5-bis(methylthio)-1,3-dithiole-2-thione (C5H6S5), C5H6S5CuI (1) and (C5H6S5)2PdI2 (2), have been synthesized and characterized crystallographically. They are assembled into ribbon structures by coordination bonds and S⋯S contacts. There are very short S⋯S contacts (3.268 A˚) between the ribbons of complex 1. The contacts are arranged parallel to the heterocycle plane with one C–S⋯S–C grouping close to linear. The results of the synthetic reactions and crystal structures indicate that the planar coordination of the thiocarbonyl sulfur with Pd(II) is more efficient than the tetrahedral coordination of Cu(I) and the preferential coordination site to Cu(I) and Pd(II) is the S in thiocarbonyl group not the methylthio group. [Copyright &y& Elsevier]

Layered iron oxysulfide Na 2 Fe 2 S 2 O serves as a cathode material for Na-ion batteries as well as a possible parent compound of novel superconductors. Here we report the crystal structure and physical properties on the basis of our successful synthesis of the high-purity sample. Na 2 Fe 2 S 2 O crystallizes in an anti-K 2 Ni F 4 -type structure, which gives rise to the characteristic [Fe 2 S 2 O] 2 − block layers. The physical property measurements indicate that it is an antiferromagnetic insulator with a Néel temperature of T N = 91. 5 K and an energy gap no less than 0.43 eV. Evidence of two-dimensional short-range spin correlations above T N is given by the magnetic and specific-heat measurements. Our structural correlation analysis suggests that the Fe–S bond distance dominantly determines T N. [Display omitted] • High-quality samples of Na 2 Fe 2 S 2 O were prepared by an optimized synthesis condition. • The crystal structure was precisely determined by powder X-ray diffraction. • The title material is demonstrated as an antiferromagnetic insulator. [ABSTRACT FROM AUTHOR]

[Display omitted] The addition of carbon in medium-entropy and high-entropy alloys offers a convenient way to improve their mechanical as well as physical properties. However, no fundamental change in their crystal structures has been found so far. Here we report the observation of structural transformation by adding carbon in the hexagonal MoReRu medium-entropy alloy. It is found that a single face-centered cubic phase exists in MoReRuC x over a wide carbon content range of x = 0.9 to 1.2. Within this phase region, MoReRuC x exhibits both high hardness above 10 GPa and bulk Bardeen-Copper-Schrieffer-like superconductivity, with T c mainly governed by the electron-phonon coupling strength. We argue that the observed structural transformation is driven by valence electron concentration and local lattice distortion, which suggests that it might also occur in carbon-added high-entropy alloys isostructural to MoReRu. [ABSTRACT FROM AUTHOR]

Reactions of NiCl2·6H2O or Ni(ClO4)2·6H2O with 2,2′-bipyridine (2,2′-bipy), or 2-bis(diphenylphosphino)ethane (dppe) or 1,4-bis(diphenylphosphino)butane (dppb) followed by addition of [Zn(Tab)4](PF6)2 (1) resulted in the formation of one trinuclear cationic complex [(2,2′-bipy)4Ni3(μ-Tab)4]Cl0.5(PF6)5.5 (2), one mononuclear cationic complex [Ni(Tab)2(dppe)](PF6)2 (3), and one dinuclear cationic complex [Ni2(dppb)(μ-Tab)2(Tab)2](PF6)2(ClO4)2 (4). Complexes 2-4 were characterized by elemental analysis, IR, UV-vis, 1H and 31P NMR, and single-crystal X-ray diffraction. In the [(2,2′-bipy)4Ni3(μ-Tab)4]6+ hexacation of 2, the central Ni(II) atom is connected to two [Ni(2,2′-bipy)2]2+ fragments by two pairs of μ-Tab ligands, forming a linear trinuclear cationic structure. The Ni(II) center of the dication of 3 is tetrahedrally coordinated by two S atoms from two Tab ligands and two P atoms of one dppe ligand. Complex 4 has a dimeric cationic structure in which two [(Tab)Ni]2+ species are linked by a pair of μ-Tab ligands and one dppb ligand. Complexes 2-4 displayed high catalytic activity toward the cross-coupling reactions of arylboronic acids and amines to produce N-arylated amines. [ABSTRACT FROM AUTHOR]

Crystal structures and properties of two new ion pair charge-transfer (IPCT) compounds, [DMBPE]2Ge4S10·8H2O (1) and [DMBPE]2Ge4S10·5H2O (2), (DMBPE=N,N′-dimethyl-1,2-bis(4-pyridinium)-ethylene) are characterized. The IPCT property was confirmed by their charge-transfer absorption bands. Fluorescence emission for 1 in water was observed, that is affected by the cation-anion interaction. The photocurrent measurement showed that compounds 1 and 2 are also photoelectric responsive materials. [ABSTRACT FROM AUTHOR]

Hydrothermal reactions of CdSO4 with tetrakis(4-pyridyl)cyclobutane (tpcb) and 1,3-benzenedicarboxylic acid (1,3-H2BDC) or 5-nitro-1,3-benzenedicarboxylic acid (5-NO2-1,3-H2BDC) resulted in the formation of two coordination polymers [Cd(tpcb)0.5(1,3-BDC)]n (1) and {[Cd2(tpcb)(5-NO2-1,3-BDC)2(OH2)2]·4H2O}n (2), respectively. Compounds 1 and 2 were characterized by elemental analysis, IR, powder X-ray diffraction, and single-crystal X-ray diffraction. 1 and 2 exhibit two different types of two-fold interpenetrating 3D architectures with (66)2(64 ·82) and (52 ·8)(54 ·6∙8)(4·53 ·62 ·7·82 ·10) Schläfli symbols, respectively. Their thermal and photoluminescent properties were also investigated. [ABSTRACT FROM AUTHOR]

Highlights: [•] Effects of water on the tensile properties of Si were examined by MD simulations. [•] The fracture strength of the Si in water is lower than the result in dry environment. [•] The influence of water on the tension properties of Si-film is extremely rapid. [•] The cracks initiate from the Si rather than from the surface oxide layer. [Copyright &y& Elsevier]

Reactions of PbI2 with KI, I2 and 1,2-bis(diphenylphosphino)ethane (dppe) (molar ratio=1:5:3:4) in MeCN/EtOH under solvothermal conditions afforded a one-dimensional (1D) coordination polymer [(EP)(Pb2I6)]n (EP2+ =ethane-1,2-diylbis(ethyldiphenylphosphonium)) (1) and a three-dimensional (3D) coordination polymer [{(Pb3(μ-I)6)(dppeo)3}·EtOH]n (2) (by-product). Treatment of the same components with H2O2 under similar conditions produced another 3D coordination polymer [{Pb2(μ-I)2(μ3-I)2}(dppeo)]n (dppeo=ethane-1,2-diylbis(diphenylphosphine oxide)) (3). Compound 2 could also be prepared in a medium yield from solvothermal reactions of PbI2 with KI, I2 and dppeo (molar ratio=1:5:3:4). Compounds 1–3 were characterized by elemental analysis, IR and single crystal X-ray diffraction. Compound 1 contains one 1D anionic [PbI3]n n− chain with EP2+ dications being embedded between chains. The EP2+ dication was in situ generated via the cleavage of C O bond of EtOH followed by alkylation of dppe. Compound 2 consists of trinuclear [Pb3(μ-I)6] fragments that are interlinked via dppeo bridges to form a 3D 6-connected net (a 41263 Schläfli symbol). Compound 3 has a 3D net (with a 66 Schläfli symbol) constructed from 1D [Pb2(μ-I)2(μ3-I)2]n chains linked by dppeo ligands. The dppeo ligand in 3 was formed in situ from the oxidation of dppe by H2O2. The optoelectronic properties of 1–3 were also investigated. [ABSTRACT FROM AUTHOR]

Solvothermal reactions of bulk CuSCN with six flexible benzimidazolyl-based ligands with different spacer lengths [(bzim)(CH2)n(bzim)] (bzim = benzimidazolyl; n = 1, mbbm; n = 2, ebbm; n = 3, prbbm; n = 4, bbbm; n = 5, pbbm; n = 6, hbbm) afforded a series of new [CuSCN]n-supported coordination polymers, [(CuSCN)2(mbbm)]n (1), [(CuSCN)2(ebbm)2]n (2), [(Cu(SCN)2(prbbm)]n (3a), [{(CuSCN)2(prbbm)2}·2MeCN]n (3b), [(CuSCN)4(bbbm)3]n (4), [(CuSCN)2(pbbm)]n (5), and [(CuSCN)2(hbbm)]n (6), respectively. Compounds 1−6 were characterized by elemental analysis, IR, and X-ray crystallography. Compound 1, 3a, or 6 possesses the similar staircase-like [CuSCN]n chains that are bridged by mbbm, prbbm, or hbbm to form one one-dimensional (1D) chain with an oblong channel (3a) or two two-dimensional (2D) networks (1 and 6). Compound 2 or 3b consists of a dimeric [CuSCN]2 fragment that serves either as a 4-connecting node to link the other four equivalent ones via two pairs of ebbm bridges to form a 2D (4,4) network (2) or as a 2-connecting node to bridge its two adjacent ones via a pair of prbbm bridges to form a 1D chain (3b). Compound 4 contains a new kind of [CuSCN]n double chain that is connected by bbbm with two conformations to form a unique 2D network, while 5 consists of a [CuSCN]n single chain that is linked by pbbm to form the other kind of 1D chain with an oblong channel. In addition, the photoluminescent properties of 1−6 in solid state at ambient temperature were also investigated. Solvothermal cracking reactions of bulk CuSCN with six flexible benzimidazolyl-based ligands with different spacer lengths [(bzim)(CH2)n(bzim)] (bzim = benzimidazolyl; n = 1, mbbm; n = 2, ebbm; n = 3, prbbm; n = 4, bbbm; n = 5, pbbm; n = 6, hbbm) afforded seven new [CuSCN]n-based coordination polymers, [(CuSCN)2(mbbm)]n, [(CuSCN)2(ebbm)2]n, [(Cu(SCN)2(prbbm)]n, [{(CuSCN)2(prbbm)2}·2MeCN]n, [(CuSCN)4(bbbm)3]n, [(CuSCN)2(pbbm)]n, and [(CuSCN)2(hbbm)]n. These compounds were characterized by elemental analysis, IR, and X-ray crystallography. [ABSTRACT FROM AUTHOR]

Abstract: Reaction of (NH4)2[WOS3] with 2 equiv. of CuI in 4-tert-butylpyridine (4- t BuPy) and methanol afforded a hexanuclear neutral cluster [WOS3Cu2(4- t BuPy)2]2. This compound was characterized by elementary analysis, IR, UV–vis, 1H NMR, thermogravimetric analysis, and its crystal structure was determined by X-ray single crystal diffraction. The compound contains a hexagonal prismatic cage structure in which two butterfly-shaped [WOS3Cu2(4- t BuPy)2] cluster fragments are interlinked through four CuThe nonlinear optical properties were studied with a 30ps pulsed laser at 532nm. The compound exhibited strong nonlinear absorption effect with α 2 =2.5×10−10 mW−1, χ (3) =8.5×10−14 esu, and γ =4.8×10−30 esu. [Copyright &y& Elsevier]

Abstract: Reactions of [PPh4][(η5-C5Me5)WS3] with equimolar M′Cl2 (M′=Zn, Cd) in MeCN or 0.5equiv. of HgCl2 in DMF afforded two binuclear clusters [PPh4][(η5-C5Me5)WS3(M′Cl2)] (1: M′=Zn; 2: M′=Cd) and one trinuclear cluster [{(η5-C5Me5)WS3}2Hg] (3). Compounds 1–3 were characterized by elemental analysis, IR, UV–Vis, 1H NMR and X-ray crystallography. Compound 1 may be viewed as a 1:1 composite of [PPh4][(η5-C5Me5)WS3] and ZnCl2, in which one [(η5-C5Me5)WS3]− anion binds a ZnCl2 moiety via two μ-S atoms. In the structure of 3, two [(η5-C5Me5)WS3]− anions coordinate the central Hg atom via two μ-S atoms, forming an unique bent linear structure. In addition, internal redox reactions of [PPh4][(η5-C5Me5)WS3] under the presence of M′Cl2 (M′=Zn, Cd, Hg) in high concentrations were discussed. [Copyright &y& Elsevier]

Abstract: Reactions of Ln2O3 and trans-4-pyridylacrylic acid (4-Hpya) in EtOH/H2O or MeOH/H2O produced two new lanthanide/4-pya complexes [Ln(4-pya)3(H2O)2]2 (1: Ln=Eu; 2: Ln=La) in low yields. However, reactions of LnCl3 ·6H2O with 4-Hpya/aqueous ammonia in EtOH/H2O or MeOH/H2O gave rise to 1 or 2 in higher yields. Both compounds were structurally characterized by elemental analysis, IR spectroscopy and X-ray analysis. Compounds 1 ·2EtOH·2H2O and 2 ·2MeOH·2H2O were confirmed to possess one-dimensional polymeric chain structures. In the structure of 1, each Eu(III) adopts a monocapped square-antiprism coordination geometry and each dimer [Eu(4-pya)3(H2O)2]2 within the chain is interconnected by two pairs of different bridging 4-pya ligands. On the other hand, each La(III) of 2 takes a bicapped square-antiprism coordination geometry and each dimer [La(4-pya)3(H2O)2]2 within the chain is linked by two pairs of tridentate bridging 4-pya ligands. The luminescent properties of 1 and 2 in the solid state were investigated. [Copyright &y& Elsevier]

Abstract: Two 1D coordination polymeric isomers with the same chemical formula [Cu(2,2′-bipy)(Htda)] n (2,2′-bipy=2,2′-bipyridine, Htda=1,2,3-triazole-4,5-dicarboxylate) were solvothermally prepared and structurally characterized. X-ray analysis revealed that one isomer has a 1D staircase chain structure while the other possesses a 1D spiral chain structure. The electrochemical behaviors of both isomers in solution were also investigated by cyclic voltammetry. [Copyright &y& Elsevier]