共查询到20条相似文献，搜索用时 640 毫秒
1.
Ying Wang Lan Cui Zhang Zai Ming Zhu Na Li Ai Fang Deng Shu Yue Zheng 《Transition Metal Chemistry》2011,36(3):261-267
Four Strandberg-type phosphomolybdate-based Cu(II) complexes of 2,2′-biimidazole (C6H6N4, H2biim) and H2O molecules, namely [Cu(H2biim)2(H2O)][Cu(H2biim)2(HPO4)2(Mo5O15)]·2H2O (1), [{Cu(H2biim)(H2O)}2{μ-Cu(H2biim)(H2O)}(P2Mo5O23)]2·20H2O (2), [Cu(H2biim)2][{Cu(H2biim)(H2O)2}{Cu(H2biim)2}(HPO4)(PO4)(Mo5 O15)]2·20H2O (3), and [Cu(H2biim)2(H2O)][Cu(H2biim)2(HPO4)2(Mo5O15)]·6H2O (4) have been synthesized and characterized by physico-chemical and spectroscopic methods. Single-crystal X-ray diffraction
analysis reveals that compound 1 consists of a mono-supporting heteropolyoxoanion [Cu(H2biim)2(H2P2Mo5O23)]2−and an isolated [Cu(H2biim)2(H2O)]2+ cation. Compound 2 is composed of two tetra-supporting heteropolyoxoanions linked via two Cu(II) complex fragments. In compound 3, there exist two symmetrical bi-supported polyoxoanion clusters and an isolated [Cu(H2biim)2]2+ fragment lying in the center of the clusters. Compound 4 is also constructed from a [Cu(H2biim)2(H2P2Mo5O23)]2− polyoxoanion and a [Cu(H2biim)2(H2O)]2+ cation, but it has a different space group and packing interactions compared with compound 1. 相似文献
2.
在水热条件下,用1,10-邻菲罗啉-5,6-二酮(Do)作为中性配体合成了3个基于Keggin型多金属氧化物的化合物(HDo)6(PW12O40)2·H2O(1),[Cu(Do)2(H2O)]2[Cu(Do)2(PW12O40)(H2O)](PW12O40)(2)和[Pb(Do)2(PW12O40)](HDo)(3),并对其进行了元素分析、红外光谱、电感耦合等离子体分析、Ｘ射线光电子能谱、热重分析以及荧光光谱等表征。单晶X射线衍射分析表明化合物1和2为零维结构,化合物3是一维链状结构。 相似文献
3.
《Journal of Coordination Chemistry》2012,65(20):3482-3494
Three 1-D reduced molybdenum(V) phosphates, [Ni(OH)2][Na2(H2O)3]2{Ni[(MoO2)6(OH)3(HPO4)3(PO4)]2}?·?2C6H14N2?·?2H3O?·?5H2O (1), [Ni(H2O)2][K(H2O)5]2{Ni[(MoO2)6(OH)3(HPO4)3(PO4)]2}?·?2C6H14N2?·?2H3O?·?4H2O (2), and [Cu(H2O)2][Na(H2O)5]2{Cu[(MoO2)6(OH)3(HPO4)3(PO4)]2}?·?2C6H14N2?·?2H3O?·?4H2O (3), have been hydrothermally synthesized and structurally characterized by single-crystal X-ray diffraction. The crystallographic analysis reveals that 1 is based on {Ni[Mo6O12(OH)3(HPO4)3(PO4)]2} clusters connected through {[Ni(OH)2][Na2(H2O)3]2} pentanuclear mixed-metal cluster units to yield unusual 1-D chains along the c-axis, which further form 3-D supramolecular networks via hydrogen-bonding. Compounds 2 and 3 are heterogeneous isostructural compounds. Both are built from M[Mo6P4]2 (M?=?Ni or Cu) blocks as the structural motif combined with [MO4(H2O)2] (M?=?Ni or Cu) octahedra to form 1-D chains, where M[Mo6P4]2 (M?=?Ni or Cu) is bonded by [M′(H2O)5] (M′?=?K or Na). Furthermore, bulk carbon paste electrode modified with 1 (1-CPE) displays good electrocatalytic activity toward reduction of nitrite or bromate. 相似文献
4.
在水热条件下,用1,10-邻菲罗啉-5,6-二酮(Do)作为中性配体合成了3个基于Keggin型多金属氧化物的化合物(HDo)6(PW12O40)2·H2O(1),[Cu(Do)2(H2O)]2[Cu(Do)2(PW12O40)(H2O)](PW12O40)(2)和[Pb(Do)2(PW12O40)](HDo)(3),并对其进行了元素分析、红外光谱、电感耦合等离子体分析、X射线光电子能谱、热重分析以及荧光光谱等表征。单晶X射线衍射分析表明化合物1和2为零维结构,化合物3是一维链状结构。 相似文献
5.
《Journal of Coordination Chemistry》2012,65(22):4032-4051
Ten new complexes, [Cu2(L1)(NO3)2]·2H2O (1), [Cu4(L1)2]·4ClO4·H2O (2), [Cu2(L1)(H2O)2]·(adipate) (3), [Cu6(L1)2(m-bdc)4]·2DMF·5H2O (4), [Cu2(L1)(Hbtc)]·5H2O (5), [Cu2(L1)(H2O)2]·(ntc)·3H2O (6), [Co2(L2)]·[Co(MeOH)4(H2O)2] (7), [Co3(L2)(EtOH)(H2O)] (8), [Ni6(L2)2(H2O)4]·H2O (9) and [Zn4(L2)(OAc)2]·0.5H2O (10), have been synthesized. 1 displays a [Cu2(L1)(NO3)2] monomolecular structure. 2 shows a supramolecular chain including [Cu2L1]2+. In 3, two Cu(II) ions are connected by L1 to form a [Cu2(L1)(H2O)2]2+ cation. In 4, the m-bdc anions bridge Cu(II) ions and L1 anions to form a layer. Both 5 and 6 display 3-D supramolecular structures. 7 consists of both [Co2L2]2? and [Co(MeOH)4(H2O)2]2+ units. 8 and 9 show infinite chain structures. In 10, Zn(II) dimers are linked by L2 to generate a 3-D framework. The magnetic properties for 4 and 8 and the luminescent property for 10 have been studied. 相似文献
6.
Qing Lin Guan Xue Gao Jing Liu Wen Juan Wei Yong Heng Xing 《Journal of Coordination Chemistry》2016,69(6):1026-1038
[Cu2(UO2)4(suc)4(pac)4] (1), [(Cu(H2O)2)(4,4′-bipy)2][(UO2)2(H2O)2(Hca)2]·3H2O (2), and [(Cu(H2O)2)(UO2)(bta)]·4H2O (3) were synthesized by the reaction of succinic acid and 3-pyridinecarboxylic acid, citric acid and 4,4′-bipyridine, or 1,2,4,5-benzenetetracarboxylic acid ligands with Cu(NO3)2·3H2O and UO2(CH3COO)2·2H2O. The complexes were characterized by IR and UV–vis spectroscopy, powder X-ray diffraction, single-crystal X-ray diffraction, and photoluminescence spectroscopy. Photocatalytic activities of the complexes were also investigated. 相似文献
7.
《Journal of Coordination Chemistry》2012,65(20):3674-3683
Two new compounds, (H2en)3(H2enMe)4(H3O){CuI[MoV 6O12(OH)3(HPO4)(PO4)3]2}?·?6H2O (1) and (H2enMe)4{CuICuII[MoV 6O12(OH)3(PO4)(HPO4)2(H2PO4)]2}?·?3H2O (2), were hydrothermally synthesized and characterized by elemental analysis, IR, TGA, and single-crystal X-ray diffraction analysis. Crystallographic analysis reveals that 1 is constructed from cluster anions {CuI[MoV 6O12(OH)3(HPO4)(PO4)3]2}15?, protonated organic amines, and water molecules. Each cluster is bridged through hydrogen bonds to form a 3-D supermolecular structure. For 2, {CuI[MoV 6O12(OH)3(PO4)(HPO4)2(H2PO4)]2}11? are connected by CuII cations to form an infinite chain. The formation of 1 and 2 reveals that organoamines influence the structures of the crystals. 相似文献
8.
Cyano-bridged complexes based on re tetrahedral cluster anions, Ni2+ cations, and polydentate amines
O. A. Efremova Yu. V. Mironov N. V. Kuratieva V. E. Fedorov 《Russian Journal of Coordination Chemistry》2006,32(7):461-468
Interaction of the tetrahedral chalcocyanide cluster anionic complexes of Re, K4[Re4Q4(CN)12] (Q=S, Se, Te), with Ni2+ cationic complexes with polydentate amines, such as ethylenediamine (En), diethylenetriamine (Dien), or triethylenetetraamine (Trien) was used to synthesize six novel complexes: [Ni(NH3)4(En)][{Ni(NH3)(En)2}Re4Te4(CN)12] · 2H2O, [{Ni(En)2}2Re4Se4(CN)12] · 3.5H2O, [Ni(NH3)3(Dien)]2[Re4Se4(CN)12] · 5.5H2O, [{Ni(NH3)2(Dien)}2Re4Te4(CN)12] · 2.5H2O. [Ni(NH3)2(Trien)][{Ni(NH3)(Trien)}Re4Se4(CN)12] · 2.5H2O, [{Ni(Trien)}2Re4S4(CN)12] · 3H2O. The complexes were studied by single-crystal X-ray diffraction analysis. 相似文献
9.
《Journal of Coordination Chemistry》2012,65(16):1825-1834
Treatment of freshly precipitated Cu(OH)2?·?xH2O and 2,4,6-tris(2-pyridyl)-1,3,5-triazine (tptz) with oxalic and malonic acids in methanol-water at room temperature gave [Cu(tptz)(C2O4)(H2O)]?·?4H2O (1) and [Cu(pma)(C3H2O4)(H2O)]?·?H2O (2) (pma?=?2-aminocarbonylpyridine), respectively. Reaction in the absence of any acid resulted in [Cu(bpca)(tca)]?·?2H2O (3) (bpca?=?bis(2-pyridylcarbonyl)amide anion; tca?=?2-pyridinecarboxylate anion). Complex 1 consists of [Cu(tptz)(C2O4)(H2O)] and lattice H2O molecules; the tridentate tptz ligand, bidentate oxalate dianion and an aqua ligand are bound to Cu with distorted octahedral geometry. Complex 2 is composed of [Cu(pma)(C3H2O4)(H2O)] and lattice H2O molecules; the bidentate 2-aminocarbonylpyridine ligand, a bidentate malonate dianion and an aqua ligand are coordinated to Cu with a slightly distorted square pyramidal geometry. Complex 3 consists of [Cu(bpca)(tca)] and lattice H2O molecules. Square pyramidally coordinated Cu atoms are surrounded by tridentate bpca with nitrogen donor atoms and a bidentate 2-pyridinecarboxylate anion. 相似文献
10.
《中国化学快报》2022,33(9):4389-4394
In this paper, three new polyoxometalates (POM)-based metal–organic complexes constructed from a new semi-rigid organic ligand N,N'-bis(4-pyrimidinecarboxamido)-1,2-cyclohexane (4-bpmah) H2[Cu(4-bpmah)2(SiMo12O40)(H2O)2]·2H2O (1), H[Cu(4-bpmah)2(PMo12O40)(H2O)2]·2H2O (2) and [Cu(4-bpmah)(H2O)2]·[Cu2(TeMo6O24)(H2O)10]·4H2O (3) were synthesized by hydrothermal method. Single crystal X-ray analyses showed that complexes 1 and 2 were isostructural, in which the isolated Keggin-type [SiMo12O40]4–/[PMo12O40]3– anions and [Cu(4-bpmah)2(H2O)2]2n+ units were expanded into 3D supramolecular structures through hydrogen bond interactions. In complex 3, the 1D [Cu(4-bpmah)(H2O)2]2n+ metal–organic chains and isolated [Cu2(TeMo6O24)(H2O)10]2n– units were expanded into a 3D supramolecular framework by the hydrogen bond interactions. In this paper, carbon cloth working electrodes composited by the title complexes (1/CC, 2/CC and 3/CC) were prepared and used as electrodes for supercapacitors. The performance of supercapacitors as well as the influence of electrolyte solution and title complexes quality load on the performance of supercapacitors were studied. Furthermore, the electrochemistry and electrocatalytic behaviors of complexes 1–3 bulk-modified carbon paste electrodes (1-CPE, 2-CPE and 3-CPE) toward the reduction of KBrO3, KNO2, Cr(VI), as well as their sensing behaviors on Cr(VI) were investigated. 相似文献
11.
Xin-Xin Xu Xia Zhang Xiao-Xia Liu Ting Sun Yu-Hong Wang 《Transition Metal Chemistry》2009,34(5):571-577
Reduced molybdophosphate-based supramolecular compounds, such as (4,4′-H2bipy)[Co(H2O)2]2[Co(H2PO4)2(HPO4)4(PO4)2(MoO2)12(OH)6] · 17H2O (1), [Co(2,2′-bipy)2(H2O)]4[Co(H2O)2][Co(HPO4)6(PO4)2(MoO2)12(OH)6] · 2H2O (2), and [Co(2,2′-bipy)2(H2O)]4[Co(H2PO4)(H2O)2]2[Co(HPO4)6(PO4)2(MoO2)12(OH)6] · 8H2O (3) (4,4′-bipy=4,4′-bipyridine, 2,2′-bipy=2,2′-bipyridine), have been synthesized under hydrothermal conditions and characterized.
Compound 1 exhibits a three-dimensional supramolecular twofold interpenetrating architecture built up of one-dimensional [P4Mo6]-based infinite covalent chains and free 4,4′-bipy molecules. Compound 2 also shows a three-dimensional supramolecular network constructed from one-dimensional covalent [P4Mo6]-based chains. Unlike compounds 1 and 2, compound 3 exhibits an interesting three-dimensional ‘honeycomb-like’ supramolecular network constructed by the stacking of [Co(2,2′-bipy)2(H2O)] units with one-dimensional channels, in which the [P4Mo6]-based polyoxometalate chains are located. The magnetic properties of compounds 2 and 3 are reported.
Electronic supplementary material The online version of this article (doi:) contains supplementary material, which is available to authorized users. 相似文献
12.
The complexes [Co(L1)(mpy)] ( 1 ), [Ni(L1)(mpy)] ( 2 ), [Co(L1)(tbpy)] · 2H2O ( 3 ), [Ni2(L1)2(tbpy)2] · 5H2O ( 4 ), [Mn2(L1)2(tbpy)2] · 3H2O ( 5 ), [Mn(L1)(biim‐3)] ( 6 ), [Ni2(L1)2(btb)2(H2O)] · 2H2O ( 7 ), [Cu(L2)(mpy)] · 7H2O ( 8 ), [Co(L2)(tbpy)(H2O)] ( 9 ), [Ni(L2)(tbpy)(H2O)] · H2O ( 10 ), [Cu(L2)(bib)] · 2H2O ( 11 ), and [Cu(L2)(btb)] · 2H2O ( 12 ) [H2L1 = (3‐carboxyl‐phenyl)‐(4‐(2′‐carboxyl‐phenyl)‐benzyl)ether, H2L2 = 3‐carboxy‐1‐(4′‐carboxybenzyl)‐2‐oxidopyridinium, mpy = 2‐(4‐(4′‐methylphenyl)‐6‐(pyrindin‐2‐yl)pyridin‐2‐yl)pyridine), tbpy = 2‐(4‐(4′‐tert‐butylphenyl)‐6‐(pyrindin‐2‐yl)pyridin‐2‐yl)pyridine), biim‐3 = 1,3‐bis(imidazol‐1′‐yl)propane, btb = 1,4‐bis(1,2,4‐triazol‐1‐ylmethyl)benzene, bib = 1,4‐bis(imidazol‐1′‐ylmethyl)benzene] were synthesized. Compounds 1 – 6 have similar 1D chain structures, which are further linked by π–π interactions to generate supramolecular double chains for 1 and 2 , and supramolecular layers for 3 – 6 . Compound 7 displays a 3D 6‐connected framework with (44 · 611) topology. Compound 8 features a monomolecular structure, which is further linked by hydrogen bonds between the lattice water molecules and carboxylate oxygen atoms of L2 anions to form a 2D supramolecular layer. The monomolecular structures of 9 and 10 are connected by hydrogen bonds and π–π interactions simultaneously to generate supramolecular layers. Compounds 11 and 12 show layer structures. 相似文献
13.
Two new hybrid compounds with chemical formulas [Co(L1)2(H2O)2]2[SiW12O40]·6H2O (1) and [Cu2(C9H22 N)2(L2)2][SiW12O40]·2H2O (2) (L1 = 3,3′-diamino-5,5′-bis(1H-1,2,4-triazole), L2 = 1,2-bis(3-(2-pyridyl)pyrazole-1-ylmethyl)benzene, C9H22 N = tripropylamine) were prepared in a hydrothermal reaction system containing Keggin-type polyoxometalates (POMs), transition metal (TM) salts (cobalt salts and copper salts), and chelate L1/L2 ligands. X-ray structural analysis reveals that 1 and 2 possess 3-D supramolecular host frameworks with large cavities and the polyoxoanions SiW12 reside in these cavities as the guest templates. The photocatalytic activities of 1 and 2 were investigated. Both compounds show efficient catalytic activity for degradation of RhB with 1 > 2. The loading amount of the POM units and the structural features of these POM-based organic-inorganic hybrid compounds may be necessary factors that affect the activity of catalysts in the photocatalytic degradation. 相似文献
14.
《Journal of Coordination Chemistry》2012,65(13):1403-1418
Four novel organic–inorganic hybrid arsenic-vanadate complexes, [Cu(phen)][(AsVO4)(VV 3O7)(H2O)] (1), [Cu(en)2]2[As8V14O42(H2O)]?·?2.5H2O (2), [M(1,10-phen)3]2[As8V14O42(H2O)0.5]?·?0.5H2O (M?=?Mn, 3, Cd, 4) (1,10-phen?=?1,10-phenanthroline) have been hydrothermally synthesized for the first time and characterized by elemental analyses, XPS spectra, EPR spectra, IR spectra, TG analyses and single crystal X-ray diffraction. The structure of compound 1 consists of arsenic vanadate ribbons coordinated by the [Cu(phen)]2+ complex, while compounds 2 to 4 possess a spherical [As8 IIIV14 IVO42]4? cage with H2O molecules encapsulated. The unexpected preparation 1 and the synthesis of compounds 2 to 4 on the basis of same polyoxoanion structures show that the pH value of the reaction plays a crucial role in controlling the basic architectures. 相似文献
15.
《Journal of Coordination Chemistry》2012,65(15):1645-1654
A new inorganic-organic hybrid, [Zn(phen)2(ppy)][{Zn(phen)2}{Zn(phen)2(H2O)}{P2W18O62}]?·?2H2O (phen?=?1,10′-phenanthroline, ppy?=?2-(5-phenylpyridin-2-yl)pyridine) (1), by using pre-prepared Wells–Dawson salt α-K6P2W18O62?·?15H2O as precursor, has been synthesized under hydrothermal conditions. Compound 1 was characterized by single-crystal X-ray diffraction, elemental analyses, IR spectrum and cyclic voltammetry. Yellow crystals crystallized in the monoclinic space group P2 (1)/c with a?=?16.2450(11)?Å, b?=?17.0918(11)?Å, c?=?43.640(3)?Å, β?=?92.0060(10)°, V?=?12109.4(14)?Å3, Z?=?4. The title compound represents a novel zero-dimensional structure based on bisupporting Wells–Dawson POM: one terminal oxygen atom located in the “belt” site and another located in the “cap” site of the same hemisphere of the polyanion are coordinated by Zn2+ cations. Compound 1 also contains the isolated secondary metal complex [Zn(phen)2(ppy)]2+ with two different organic ligands phen and ppy. 相似文献
16.
Q. Wu P. T. Ma Y. P. Song J. P. Wang J. Y. Niu 《Russian Journal of Coordination Chemistry》2011,37(5):399-403
A unique hybrid borotungstate, [Cu(En)(Phen)(H2O)]4[α-BW12O40]{[Cu(En)(Phen)]2[Cu(En)2 · (H2O)]2[Cu(En)(Phen)(H2O)]2[α-BW12O40]3]} sd 10H2O (I) (Phen = 1,10-phenanthroline, En = ethylenediamine), has been hydrothermally synthesized and characterized by elemental analyses,
IR, and UV spectra, powder X-ray diffraction, thermogravimetric analysis, X-ray photoelectron spectroscopy, and singlecrystal
X-ray diffraction analysis. X-ray crystallography shows that I contains a discrete saturated Keggin-type [BW12O40]5− polyoxoanion and a rare trimeric saturated Keggin-type polyoxoanion {[Cu(En)(Phen)]2[Cu(En)2(H2O)]2[Cu(En)(Phen)(H2O)]2[α-BW12O40]3]}3−. It is noteworthy that I represents the first example of borotungstate containing four saturated Keggin-type units in one molecule. 相似文献
17.
O. A. Efremova Yu. V. Mironov N. V. Kuratieva V. E. Fedorov 《Russian Chemical Bulletin》2006,55(11):1946-1949
The reactions of the rhenium chalcocyanide cluster salts K4[Re4Q4(CN)12]·6H2O (Q = S or Se) with Cu2+ cations coordinated by the bidentate ligand 2,2′-bipyridyl (bipy) produced two new cluster compounds, [Cu(NH3)(bipy)2]2[Re4S4(CN)12]·bipy·3.25H2O (1) and [{Cu(bipy)2}2Re4Se4(CN)12]·bipy·8.5H2O (2). The structures of these complexes were solved by X-ray diffraction. Compound 1 is ionic. Compound 2 is molecular. In the structures of both compounds, there are staking interactions between the {Cu(bipy)2}2+ cationic moieties and the solvate 2,2′-bipyridyl molecules.
Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 11, pp. 1875–1878, November, 2006. 相似文献
18.
A. V. Pulya I. I. Seifullina L. S. Skorokhod N. N. Efimov E. A. Ugolkova V. G. Vlasenko A. L. Trigub V. V. Minin 《Russian Journal of Inorganic Chemistry》2018,63(11):1472-1477
The composition and structure of the Cu2+ coordination cores in the previously synthesized [CuCl(HNPv)] · H2O, [CuCl(HIPv)] · H2O, [Cu(AOc)(HNPv)], [Cu(AOc)(HIPv)], [Cu(NO3)(HNPv)], and [Cu(NO3)(HIPv)] complexes, where HNPv and HIPv pyruvic acid nicotinoyl and isonicotinoyl hydrazones, respectively, have been determined. The binuclear complex [Cu2(HNPv)2(H2O)2(μ-Cl)] has been synthesized for the first time and characterized by elemental analysis and IR, EPR, and EXAFS spectroscopy. Its dimeric structure has been proved by magnetic susceptibility measurement and EPR. 相似文献
19.
Zhan-Gang Han Qing-Hua Hao Yan-Na Wang Jing-Jing Wu Xue-Liang Zhai 《Journal of Cluster Science》2010,21(4):713-724
Two one-dimensional transition-metal-centered polyoxotungstates, that is, [Cu(en)2][Cu(en)2(H2O)][Cu(en)(phen)][CuW12O40]·3H2O (1) (en = ethylenediamine, phen = phenanthroline) and [Cu(en)2]2[Cu(en)2(H2O)]2[V5.8W7.2O40(VO)4]·3H2O (2) have been synthesized hydrothermally and structurally characterized by elemental analyses, IR spectroscopy, electrochemical
analysis, thermogravimetric analysis and X-ray single crystal diffraction. Single-crystal structural analysis reveals that
both of them represent one-dimensional structures constructed from transition-metal-centered Keggin-type polyanions bridged
by secondary metal coordination groups of Cu-ligand. Noticeably, compound 1 exhibits a helical chain-liked structure, and the anion is coordinated by three Cu-ligand units, representing a copper-centered
and tri-supported Keggin structure. In compound 2, the polyoxoanion [V5.8W7.2O40(VO)4]8− represents a V-centered tetra-capped pseudo-Keggin structure, and is coordinated by four Cu-ligand units. The three-dimensional
supramolecular structures of compounds 1 and 2 are constructed through intermolecular hydrogen bonding interactions. The electrochemical and thermalstable properties of
1 and 2 are also studied. The results show the redox properties of polyoxotungstates are retained in title polymers. 相似文献
20.