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1.
《Journal of Coordination Chemistry》2012,65(8):1299-1308
Two new coordination polymers, [Zn(H2btc)(4,4′-bpy)2] n (1) and {[Cd(H2btc) (terpy)]?·?H2O} n (2) (H4btc?=?biphenyl-2,2′,4,4′-tetracarboxylic acid, 4,4′-bpy?=?4,4′-bipyridine, terpy?=?terpyridine), have been synthesized under hydrothermal conditions and characterized by elemental analysis, IR spectra, and single-crystal X-ray diffraction. Complexes 1 and 2 are 1-D chains linked through partially deprotonated H4btc. The adjacent 1-D chains of 1 are further formed into 2-D supramolecular architecture through inter-chain N–H···O hydrogen bonds. In contrast, due to a different auxiliary ligand, the 1-D chains of 2 are further extended into 3-D supramolecular framework through inter-chain O–H···O hydrogen bonds. Thermal stabilities and luminescence of 1 and 2 were also studied. 相似文献
2.
《Journal of Coordination Chemistry》2012,65(20):3614-3622
In this article, [Ag8(btc)2(2,2′-bpy)2] n (1) and [Ag4(btc)(phen)2] n (2) (H4btc?=?biphenyl-2,2′,4,4′-tetracarboxylic acid, 2,2′-bpy?=?2,2′-bipyridine, phen?=?1,10-phenanthroline) have been synthesized under hydrothermal conditions and characterized by elemental analysis, IR spectra, thermogravimetric analyses, and single-crystal X-ray diffraction. Complex 1 shows a 3-D framework containing a 2-D bilayer network constructed from (btc)4? with Ag (I), whereas 2 features a 2-D supramolecular bilayer network. The differences of the two complexes demonstrate that nitrogen-containing chelating ligands have a significant effect on the formation and structure of the resulting complexes. Electrochemistry properties of 1 were also studied. 相似文献
3.
《Journal of Coordination Chemistry》2012,65(6):1006-1015
Two new complexes, [Mn(H2bptc)(2,2′-bpy)2]?·?2H2O (1) and [Mn3(Hbptc)2(2,2′-bpy)3(H2O)8]?·?2H2O (2) (H4bptc?=?biphenyl-2,5,2′,5′-tetracarboxylic acid, 2,2′-bpy?=?2,2′-bipyridine), have been synthesized under hydrothermal conditions. Their structures have been characterized by single-crystal X-ray diffraction, elemental analyses, IR spectra, powder X-ray diffraction, and thermogravimetric analyses. Complexes 1 and 2 are both linked into 3-D supramolecular networks by non-covalent interactions (O–H?···?O, C–H?···?O, C–H?···?π, and π?···?π). Complexes 1 and 2 exhibit weak antiferromagnetic interactions. 相似文献
4.
Chuan-Bin Fan Xiang-Min Meng Yu-Hua Fan Lian-Sheng Cui Xia Zhang 《Journal of Coordination Chemistry》2017,70(4):734-745
Two coordination polymers, [Cd(sbdc)(bmib)]n (1) and {[Zn(sbdc)(tib)]·0.5H2O}n (2) (H2sbdc = 4,4′-stilbenedicarboxylic, bmib = 1,4-bis(2-methylimidazol-1-yl)butane, tib = 1,3,5-tris(1-imidazolyl)benzene), have been synthesized under solvothermal conditions, characterized by elemental analysis, infrared spectra, thermogravimetric analysis, and single-crystal X-ray diffraction. Single-crystal X-ray diffraction analysis reveals that 1 and 2 show 8-fold and 2-fold interpenetrating 3-D frameworks, respectively. Complexes 1 and 2 display a 4-connected (66) sqc6 and a 4-connected (44·62) sql topology, respectively. Photoluminescent and thermal properties of 1 and 2 have also been investigated. 相似文献
5.
《Journal of Coordination Chemistry》2012,65(5):893-901
Two coordination complexes, [Co2L2(4,4′-bpy)2(H2O)4]?·?6H2O (1) and [CoL(4,4′-bpy)] (2) (H2L?=?4,6-bis(4-methylbenzoyl)isophthalic acid and 4,4′-bpy?=?4,4′-bipyridine), have been synthesized with the same starting materials under conventional and hydrothermal condition, respectively. Their structures have been characterized by X-ray diffraction, elemental analysis, IR spectra, and thermogravimetric analysis. Complex 1 features a 2-D sheet structure (space group C2/c) with (4,4) grid units. The non-covalent interactions (O–H?·?·?·?O, C–H?·?·?·?π, and weak π??·?·?·?π interactions) extend 1 into a 3-D supramolecular network. Complex 2 displays a (3,5)-connected network (space group P 1) with a (42?·?6)(42?·?68) topology. 相似文献
6.
《Journal of Coordination Chemistry》2012,65(15):2411-2420
Two allomeric helical coordination polymers, {[Zn(4,4′-dps)2(HSSA)(H2O)2] · 3(H2O)} n (1) and {[Cd(4,4′-dps)2(HSSA)(H2O)2] · 3(H2O)} n (2) (4,4′-dps = 4,4′-dipyridylsulfide, H3SSA = 5-sulfosalicylic acid), have been synthesized by similar experimental methods and characterized by elemental analysis, single-crystal X-ray diffraction, and fluorescence spectra. Both crystallize in monoclinic system, space group P21/n, with a = 11.7947(13) Å, b = 13.7475(15) Å, c = 20.183(2) Å, and Z = 4 for 1 and a = 11.940(7) Å, b = 14.068(8) Å, c = 20.323(12) Å, and Z = 4 for 2. In both complexes, the metal (ZnII for 1 and CdII for 2) are six-coordinate with a N3O3 donor set in a distorted octahedron. Half of the 4,4′-dps are μ 2-bridging, linking adjacent metal centers and forming P21/n dimensional helical structures along the b-axis. Fluorescence measurements show that 1 and 2 have medium fluorescent emission at 402 and 405 nm, respectively. 相似文献
7.
Dong-Yu Lv Zhu-Qing Gao Jin-Zhong Gu Jian-Zhao Liu Wei Dou 《Transition Metal Chemistry》2011,36(3):275-281
Two Mn(II) coordination polymers, namely [Mn(bpda)]
n
(1) and [Mn(bpda)(bpy)0.5]
n
(2) (H2bpda = 1,1′-biphenyl-3,3′-dicarboxylic acid and bpy = 4,4′-bipyridine), have been synthesized from H2bpdc, bpy, and MnSO4·2H2O under hydrothermal conditions. The complexes were characterized by physicochemical and spectroscopic methods, as well as
by X-ray crystallography. Compound 1 possesses a 3D structure consisting of carboxylate-bridged edge-sharing Mn–O–Mn double chains. Compound 2 features a 3D open structure with a dinuclear Mn(II) secondary building unit. Magnetic susceptibility measurements of compounds
1 and 2 exhibit antiferromagnetic interactions between the nearest Mn(II), with J = –11.3 cm−1 and g = 2.12 for 1, and J = –13.5 cm−1 and g = 2.12 for 2. 相似文献
8.
The title compounds, Zn(C5H6O4)(Dpds) · 5H2O (I) and Zn(C6H8O4)(Dpds) (II) (C5H8O4 = glutaric acid, Dpds = 4,4??-dipyridyl disulfide, and C6H10O4 = adipic acid), are two-dimensional metal-organic coordination polymers. In I, the tetrahedra coordinated Zn atoms are bridged by glutarate anions and Dpds ligand to form a 2D layer parallel to (001) plane, which are connected by the 1D water tape notated as T4(2)5(2) to build up 3D supramolecular architecture. In II, both Dpds ligands and adipate anions act as bidentate bridges, connecting the Zn(II) centers in a tetrahedral coordination geometry into a two-dimensional (4,4) layer. Each layer polycatenates adjacent layers, exhibiting the rare combination of 2D ?? 2D parallels interpenetration. 相似文献
9.
《Journal of Coordination Chemistry》2012,65(17):3111-3121
Two new complexes, [Cd2(H4ebidc)2(CH3OH)4]?·?2CH3OH (1) and {[Cd(Cl)(I)(H6ebidc)1/2]?·?1/2bbe?·?H2O} n (2) (H6ebidc?=?2,2′-(ethane-1,2-diyl)bis(1H-imidazole-4,5-dicarboxylic acid), bbe?=?1,2-bis(2-benzimidazolyl)ethane), are obtained through self-assembly of H6ebidc with Cd(II). Single-crystal X-ray diffraction shows that 1 has a binuclear structure and each tridentate chelating ligand coordinates to two Cd(II) ions with µ2-O. Complex 2 displays a 1-D chain structure and each tetradentate ligand bridges two Cd(II) ions in chelating fashion. Fluorescent properties have also been determined. 相似文献
10.
《Journal of Coordination Chemistry》2012,65(16):2877-2892
A series of transition metal (Zn, Cu, Mn) complexes with chelidamic acid (2,6-dicarboxy-4-hydroxypyridine, H3CAM) and 4,4′-bipyridine (bipy), [Zn2(bipy)Cl2] n (1), {[Zn2(HCAM)(H2CAM)2]?·?(bipy)?·?3.5H2O} n (2), [Mn3(HCAM)3(H2O)7]?·?(bipy)?·?3H2O (3), [Mn2(HCAM)2(bipy)?·?(H2O)2]?·?4H2O (4), [Cu2(HCAM)2(bipy)?·?(H2O)2]?·?4H2O (5), and Cu2(HCAM)2(bipy)?·?(H2O)2 (6), have been synthesized by hydrothermal or solution methods and characterized by single-crystal X-ray diffraction. The structural analyses reveal that 1 exhibits a zigzag chain of Zn(II), Cl?, and 4,4′-bipyridine. In 2, a 1-D polymeric [Zn2(HCAM)(H2CAM)2] n chain and a discrete 4,4′-bipyridine assemble into a 2-D supramolecular network via H-bonds. Complex 3 consists of asymmetric units of Mn3(HCAM)3(H2O)7 that are linked by hydrogen bonds to form a 2-D H-bonded network. Complexes 4–6 are isomorphous and possess discrete structures. The photoluminescent properties of 1–6 at room temperature were studied. 相似文献
11.
《Journal of Coordination Chemistry》2012,65(10):1829-1836
{[Zn2(tdba)2(phen)2(H2O)2]?·?2H2O?·?2DMF} n (1) and [Zn(tdba)(bpy)] n (2) (H2tdba?=?2,2′-thiodibenzoic acid, phen?=?1,10-phenanthroline, bpy?=?2,2′-bipyridine, DMF?=?dimethylformamide) were hydrothermally synthesized, and characterized by single-crystal X-ray diffraction analysis, FT-IR, and elemental analysis. The obtained complexes exhibit different structures. Compound 1 is 0-D with tdba connecting two Zn ions in a μ 1–η 1/μ 1–η 1 coordination forming a dinuclear molecule. Each molecule is further connected with neighbors via hydrogen-bonding and π?···?π interactions. Compound 2 displays a 1-D structure in which Zn2+ centers are connected via tdba anions into 1-D chains propagating along the a-axis; these chains are further packed via π?···?π interactions. In addition, photoluminescence for 1 and 2 has been investigated. 相似文献
12.
The solution reactions of CuCl2 with 2,2′:6′,2″-terpyridine (Terpy) and dicarboxylic acid (glutaric acid or suberic acid) afforded two 1D coordination polymers [Cu(Terpy)(C5H6O4)] n (I) and [Cu(Terpy)(C8H12O4)] · 3H2O (II) and their structures were characterized by IR, TG-DTA, and single-crystal X-ray diffraction. Crystallographic data for I: C20H16CuN3O4, M r = 425.90, monoclinic, space group C2/c, a = 10.335(2), b = 21.193(4), c = 8.580(2) Å, β = 111.99(3)°, V = 1742.5(6) Å3, Z = 4, ρ c = 1.623 g/cm3, F(000) = 872, R = 0.0304 and wR = 0.0915; and those for II: C23H29CuN3O7, M r = 523.03, triclinic, space group P \(\bar 1\), a = 8.362(2), b = 10.605(2), c = 14.617(3) Å, α = 73.26(3)°, β = 86.23(3)°, γ = 69.45(3)°, V = 1161.3(4) Å3, Z = 2, ρ c = 1.496 g/cm3, F(000) = 546, R = 0.0636 and wR = 0.1106. X-ray diffracion studies reveal that both complexes I and II feature 1D chain. The 1D polymer chains are connected by π-π-stacking interactions to generate 2D supramolecular layers. 相似文献
13.
《Journal of Coordination Chemistry》2012,65(6):1062-1070
Two coordination polymers, {[Mn(1,10-phen)2(3,4-H2bptc)]?·?(H2O)}2 n (1) and {[Co2(1,10-phen)(3,4-bptc)(H2O)2]?·?H2O} n (2) (3,4-H4bptc = 3,3′,4,4′-biphenyltetracarboxylic acid, 1,10-phen?=?1,10-phenanthroline), have been prepared and structurally characterized. In both compounds, 3,4-H2bptc2– and 3,4-bptc4? exhibit different coordination modes and lead to various architectures. Compound 1 displays 1-D zigzag chains constructed with hydrogen bonds. Compound 2 exhibits a 2-D layer constructed from bpta4? between the dinuclear Co(II) units. The thermal stabilities and magnetic properties are also reported. In addition, 1 was explored as a luminescent material. The carboxylic oxygen atoms act as H-bond acceptors and donors forming a 1-D ladder-like arrangement. 相似文献
14.
BAI ZhengShuai CHEN ShuiSheng ZHANG ZhengHua CHEN ManSheng LIU GuangXiang & SUN WeiYin State Key Laboratory of Coordination Chemistry 《中国科学B辑(英文版)》2009,(4)
Two novel interpenetrated coordination polymers,[Zn(IBA)2]n (1) and {[Cd(IBA)2(H2O)].4H2O}n (2),have been synthesized by using 4-imidazole-benzoic acid (HIBA) as ligand under hydrothermal conditions. Complex 1 crystallizes in a chiral space group and has a two-fold interpenetrated 2D network structure with (4,4) topology,while complex 2 is a 3D porous dia network with four nets interpene-trating each other. The SHG activity of 1 and the photoluminescent property of 2 have been investigated. 相似文献
15.
J. N. Tang Z. J. Huang D. Y. Wang T. T. Ren L. Li G. H. Pan 《Russian Journal of Coordination Chemistry》2014,40(1):23-27
Two novel binuclear metal-organic coordination complexes [M2(Zaltoprofen)2(Bipy)2] [M = Cd (I), Zn (II); Zaltoprofen = 5-(1-carboxyethyl)-2-(phenylthio)phenylacetic acid, Bipy = 2,2′-bipyridine) have been synthesized under hydrothermal conditions and characterized by single crystal X-ray diffraction, elemental analysis, IR and electronic spectroscopy, powder X-ray diffraction, and fluorescent properties. Complexes I, II crystallize isomorphously in the monoclinic space group P21/c. Structural analysis shows that the M(II) atom of I and II is coordinated with four oxygen atoms from the carboxyl group of the Zaltoprofen together with two nitrogen atoms from the Bipy. The 3D structures of the complexes are stabilized by π-π stacking interactions. 相似文献
16.
17.
《Journal of Coordination Chemistry》2012,65(8):1304-1312
Three new metal coordination polymers, [Mn(Hdpa)2(4,4′-bipy)2] n (1), [Mn(dpa)(1,10-phen)(H2O)] n (2), and [Mn(dpa)(2,2′-bipy)] n (3) (H2dpa = 2,4′-biphenyl-dicarboxylic acid, 4,4′-bipy = 4,4′-bipyridine, 1,10-phen = 1,10-phenanthroline, and 2,2′-bipy = 2,2′-bipyridine), have been synthesized and characterized by elemental analysis, IR, and X-ray diffraction. Single-crystal X-ray analyses reveal that 2,4′-diphenic acid is a bridging ligand, exhibiting three coordination modes to link metal ions: μ 1-η 1: η 1/μ 0-η 0: η 0; μ 2-η 2: η 0/μ 1-η 1: η 0; and μ 2-η 1: η 1/μ 2-η 1: η 1. Intermolecular hydrogen bonds in 1 lead to a zigzag chain. In 2, the 2-D supramolecular arrays extended along b-axis through π–π interactions between 1,10-phen. The dinuclear paddle-wheel second building units (SBUs) constructed by four dpa2? ligands in 3 are linked by dpa2? into double-strand chains. The fluorescence of H2dpa and 1–3 are also determined. 相似文献
18.
《Journal of Coordination Chemistry》2012,65(21):2343-2350
The heterometallic Ln(III)–Cu(II) coordination polymers [CuLn2(IN)8(H2O)4] n (IN?=?isonicotinate, Ln?=?Gd (1), Dy (2), Er(3)) have been synthesized by hydrothermal reactions and characterized by elemental analysis, IR and single crystal X-ray diffraction. The compounds are isomorphous and crystallize in monoclinic space group P21/c, adopting a one-dimensional chain structure with alternately arranged [Ln2(IN)6(H2O)4] and [Cu(IN)2] building blocks bridged by isonicotinates. Temperature-dependent magnetic susceptibility for complex 1 was studied, and a very weak ferromagnetic interaction between metal ions was observed. 相似文献
19.
Two proton-conductive Cu(I) complexes based on Keggin-type clusters, [Cu(debqdc)2]2[HPW12O40]·4H2O (1), and [Cu(debqdc)2]2[HPW12O40]·debqdc·4H2O (2), where debqdc is diethyl 4,4′-dicarboxy-2,2′-biquinoline, were simply synthesized at room temperature. The products were structurally characterized by elemental analyses, infrared spectroscopy, and single-crystal X-ray diffraction analyses. Single-crystal X-ray diffraction analyses revealed that both complexes crystallized in the triclinic space group P?1 and presented two three-dimensional supramolecular networks with one-dimensional hydrophilic channels via hydrogen-bonding interactions and π–π stacking interactions between the aromatic rings. In the [Cu(debqdc)2]+ ion, debqdc acts as a bidentate nitrogen donor ligand in the chelating fashion. The bulky debqdc ligand constrains the Cu(I) metal center within such a rigid environment in a tetrahedral geometry. The two complexes exhibit good proton conductivities (10?5 ~ 10?4 S cm?1) at 100 °C in the relative humidity range 35 ~ 98%. The luminescence behaviors of these complexes in the solid state at room temperature have also been investigated. Upon excitation at 285 nm, both 1 and 2 display three main emission peaks centered at 470, 520, and 568 nm, respectively. 相似文献
20.
Four Cu(II)/Co(II) coordination polymers, [Cu(L)(BDC)(H2O)]·3H2O (1), [Cu(L)(DNBA)2] (2), [Co(L)2(DNBA)2] (3), and [Co(L)(NIPH)(H2O)]·H2O (4) (H2BDC = 1,4-benzenedicarboxylic acid, HDNBA = 3,5-dinitrobenzoic acid, H2NIPH = 5-nitroisophthalic acid, L = N,N′-di(3-pyridyl)sebacicdiamide), have been synthesized under hydrothermal conditions. The structures of 1–4 have been determined by single-crystal X-ray diffraction analyses and 1–4 were further characterized by infrared spectroscopy and thermogravimetric analyses. Complex 1 is a 2-D polymeric layer with a 4-connected sql topology. Complex 2 displays a 1-D zigzag chain. Complex 3 possesses a 1-D double-chain structure. Complex 4 exhibits a ribbon chain based on the 1-D [Co–L]nmeso-helical chain. Adjacent layers for 1 and adjacent chains for 2–4 are further linked by hydrogen bonding or π–π stacking interactions to form 3-D supramolecular networks. The differences of carboxylates and metal ions show significant effect on the ultimate architectures of the four complexes. Thermal stabilities, fluorescent properties and photocatalytic activities of 1–4 were also studied. 相似文献