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1.
《Journal of Coordination Chemistry》2012,65(14):2573-2582
Two new transition metal coordination polymers, [Zn(abz)(bipy)](ClO4) (1) and [Mn(bipy)5(H2O)6](ClO4)2?·?2(abz)?·?2(H2O) (2) (bipy?=?4,4′-bipyridine, abz?=?3-aminobenzoate), were prepared and characterized by elemental analysis, FTIR spectroscopy, and single-crystal X-ray diffraction. Complex 1 is a 2-D-layered network with a (4,4) net built up by bipy and 3-aminobenzoate ligands connecting two zinc nodes. Complex 2 is a 3-D supramolecular grid network constructed from close stacking bipy ligands of H-type cation units with large cavities hosting 3-aminobenzoate, perchlorate ions, and water. Solid state photoluminescence for 1 was also investigated. 相似文献
2.
《Journal of Coordination Chemistry》2012,65(10):1083-1091
Bimetallic complexes 3a–e of 1,1′-bisacetylacetoferrocene (2) were prepared by reactions of transition metal acetates M(OAc)2 (M?=?Co2+, Mn2+, Cu2+, Ni2+, Zn2+) with the 2 in refluxing methanol. The X-ray structures of the cobalt and manganese complexes were determined showing very similar centrosymmetric macrocyclic dimeric frameworks constituted by linkage of two Co2+ or Mn2+ ions and two 1,1′-diacetoacetylferrocene units with two additional methanols as bridges dividing this macrocyclic framework into two small cyclic subunits. The UV-Vis spectra and electronic properties were also studied. 相似文献
3.
《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
4.
《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
5.
Fenglan Liang Kuan Lu Jingjing Yan Weijie Lin Wanqiu Ding Husheng Lu Dongting Lin Hiroshi Sakiyama Deyun Ma Liang Qin 《Transition Metal Chemistry》2016,41(5):489-498
The reactions of aromatic dicarboxylic acids and methyl-functionalized 4,4′-bipyridine ligands with metal salts under hydrothermal conditions generated four structurally diverse cobalt(II), zinc(II) and cadmium(II) coordination polymers, [Co(CH3-BDC)(dmbpy)0.5] n (1), [Cd(OH-HBDC)2(dmbpy)] n (2), [Zn(NDC)(dmbpy)] n , (3) and {[Cd(DBA)(dmbpy)0.5]·2H2O} n (4) (CH3–H2BDC = 5-methylisophthalic acid, OH–H2BDC = 5-hydroxyisophthalic acid, H2NDC = 1,4-naphthalenedicarboxylic acid, H2DBA = 4,4′-methylenedibenzoic acid, dmbpy = 2,2′-dimethyl-4,4′-bipyridine). All four complexes have been structurally characterized by X-ray crystallography. Complex 1 shows a 3D jsm topology structure with two 1D channels parallel to the a and b axes. Complex 2 has a zigzag chain in which the OH-HBDC ligands point alternately up and down. Complexes 3 and 4 show 2D (4,4) networks when the dinuclear metal centers and their ligands are regarded as nodes and linkers, respectively. Complex 3 also shows twofold interpenetration with 1D channels along the b axis. Two nets of complex 4 interlock in parallel, giving rise to a polycatenated layer (2D → 2D). Thermogravimetric and chemical stabilities, magnetic and luminescent properties of these complexes were investigated. 相似文献
6.
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
7.
Hong-Dao Li Dong-Zhao Gao Xiu-Guang Wang Zhong-Yi Liu Ya-Qiu Sun Guo-Ying Zhang Yan-Yan Xu 《Transition Metal Chemistry》2013,38(8):899-911
Four new one-dimensional coordination polymers [Co(IM4Py)2(adi)(H2O)2] n , [Zn(IM4Py)2(adi)(H2O)2] n , [Cd(IM4Py)2(adi)(H2O)2] n , and [Ni(IM4Py)2(glu)(H2O)2] n (IM4Py = 2-(4′-pyridyl)-4,4,5,5-tetramethylimidazoline-1-oxyl, adi = adipate anion and glu = glutarate anion) were synthesized and structurally characterized. The single-crystal X-ray analyses indicate that all four complexes crystallize in neutral one-dimensional chains in which the nitroxide–metal–nitroxide units are bridged by the flexible dicarboxylate anions. The adipate anions adopt the anti/gauche/anti and anti/anti/anti conformations in the Co(II), Zn(II), and Cd(II) complexes, while the glutarate anions only possess the anti/anti conformation in the Ni(II) complex. The magnetic properties of the Co(II) and Ni(II) complexes show the occurrence of weak antiferromagnetic interactions between the metal atoms and the nitroxide radicals. 相似文献
8.
《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
9.
10.
《Journal of Coordination Chemistry》2012,65(2):232-243
Three complexes constructed with 2,2′-biphenyldicarboxylic acid, multidentate nitrogen donors, and metal salts, {[Cd(2,2′-dpdc)(tppp)(H2O)]2?·?2H2O} n (1), {[Pb(2,2′-dpdc)(pyphen)]2} n (2), and {[Pb(2,2′-dpdc)(dppz)]} n (3) (H2dpdc = 2,2′-diphenyldicarboxylic acid; tppp = 4-(1H-1,3,7,8-tetraazacyclopenta[l]phenanthren-2-yl)phenol; pyphen?=?pyrazino[2,3-f]-[1,10]phenanthroline; and dppz = dipyrido[3,2-a:2′,3′-c]phenazine), are synthesized under hydrothermal conditions. These complexes are characterized by single-crystal X-ray diffraction, elemental analysis, IR, TGA, and photoluminescence. In 1, two 2,2′-dpdc ions bridge two Cd(II) ions to form an isolated cluster with Cd?···?Cd distance of 5.023(4)?Å. These clusters are further linked by intermolecular hydrogen bonds, yielding a 2-D supramolecular structure. Complex 2 contains two crystallographically independent Pb(II) ions in the asymmetric unit. Pb1 ions are bridged by 2,2′-dpdc anions to form a chain along the x-axis. Two Pb2 ions are coordinated by two 2,2′-dpdc anions and two pyphen ligands to form a cluster. These clusters are linked by π–π interactions to yield a 1-D supramolecular chain along the y-axis. In 3, neighboring Pb(II) atoms are bridged by 2,2′-dpdc anions to form a 1-D chain structure. Further, the chains are linked into a 3-D supramolecular network through aromatic π–π interactions. 相似文献
11.
《Journal of Coordination Chemistry》2012,65(22):3979-3988
Two new Cd(II) coordination polymers, [Cd2(btc)(dpe)1.5(H2O)]n (1) and [Cd2(btc)(bpp)(H2O)]n (2), were prepared by the hydrothermal reaction of cadmium nitrate with H4btc (H4btc = biphenyl-2,2′,4,4′-tetracarboxylic acid) in the presence of 1,2-di(4-pyridyl)ethylene (dpe) and = 1,2-bis(4-pyridyl)propane (bpp), respectively, structurally characterized by single-crystal X-ray diffraction, and further characterized by elemental analysis, IR spectroscopy, and thermogravimetric analysis. In 1, btc4? connect six Cd2+ ions, forming a 3-D (3,3,6)-connected [Cd2(btc)] net, and further connected by 1-D [Cd(dpe)]n chains to construct the final (4,5,6)-connected (42.52.65.7)(43.62.7)(45.53.64.72.8) net. In 2, a 3-D [Cd2(btc)] net is also constructed from btc4? connecting six Cd2+ ions, giving a 3-D (3,4,7)-connected network. The overall structure of 2 can be regarded as a (4,4,6)-connected (45.64) (42.5.62.8) (43.54.67.7) framework with bpp linking adjacent Cd ions. Structural comparisons show that the secondary auxiliary N-donors have important effects on the final structure and properties. Photoluminescent properties of 1 and 2 are also discussed. 相似文献
12.
《Journal of Coordination Chemistry》2012,65(11):1865-1872
Two new copper complexes, [Cu2(BDOA)(4,4′-bpy)2] ? 2H2O (1) and [Cu(BDOA)(phen)] (2) (H2BDOA = benzene-1,4-dioxydiacetic acid; 4,4′-bpy = 4,4′-bipyridine; phen = 1,10-phenanthroline), were synthesized and characterized by IR, elemental analysis, and single-crystal X-ray diffraction. Complex 1 exhibits a 2-D three-connected network structure with 63 topology. Complex 2 displays a 1-D chain structure. Furthermore, the 3-D supramolecular networks of 1 and 2 are constructed via rich hydrogen bonds. Thermal stability of 1 is discussed in this article. 相似文献
13.
《Journal of Coordination Chemistry》2012,65(3):509-519
Four coordination polymers of the bidentate ligand 2,2′-dimethyl-4,4′-bipyridine-N,N′-dioxide (L), [La(L)(NO3)3(H2O)] n (1), {[Gd2(L)3(NO3)6]·6H2O} n (2), {[Sm(L)2(H2O)4]·3ClO4·2L·4H2O} n (3) and {[Nd(L)2(H2O)4]·3ClO4·2L·4H2O} n (4) have been synthesized by the diffusing solvent mixture method. Results of X-ray diffraction analysis reveal that 1, with a Ln/L stoichiometry of 1:1, displays a rare 3-D three-fold interpenetrating diamondoid framework, while 2 has a Ln/L stoichiometry of 1:1.5 and exhibits a polycatenane network with a {82,10} topology and large channels accommodated by water. Complexes 3 and 4, with Ln/L stoichiometry of 1:2, have 3-D two-fold interpenetrating diamondoid structures and large voids. Nonlinear optical property of 2 and luminescence of 3 were also investigated. 相似文献
14.
Four transition metal complexes constructed with mixed mercaptotetrazole and 4,4′-bipyridine ligands
Chao-Hong Su Yu-Kui Wang Fu-Ping Huang He-Dong Bian Qing Yu 《Transition Metal Chemistry》2013,38(7):757-763
Based on 5-mercapto-1H-tetrazole-1-methanesulfonic acid disodium salt (Na2mtms) and 4,4′-bipyridine (bpy) as ligands, four new transition metal complexes, namely {[Cd2(mtms)(bpy)2(OAc)2]·H2O} n (1), {[Cd(mtms)(bpy)2(H2O)2]2·bpy·4H2O} n (2), {[Zn2(μ 2-OH)(mtms)(bpy)3(H2O)]·ClO4·H2O} n (3), and {[Co(mtms)2(bpy)(H2O)2]·[Co(bpy)2(H2O)4]·H2O} n (4), have been synthesized and characterized by single-crystal X-ray diffraction. Complex 1 features a pillared-layer coordination architecture linked by acetate, mtms, and bridging bpy ligands. Complex 2 has a 1D polymeric structure with [Cd(mtms)(bpy)2(H2O)2] as the repeating unit; these infinite chains are further connected into a 3D supramolecular framework through π–π stacking of bpy ligands. In complex 3, the mtms ligand combined with μ 2-OH bridges two Zn atoms to form a dimer structure, which is different from that of complex 2. Complex 4 shows a 3D supramolecular network containing infinite [Co(mtms)2(bpy)(H2O)2]2? anionic chains and free [Co(bpy)2(H2O)4]2+ cationic components. The luminescence properties of 1 and 2 and the electrochemical properties of 3 are reported. 相似文献
15.
16.
《Journal of Coordination Chemistry》2012,65(3):271-278
Two unusual zinc coordination polymers {[Zn(bim)3](NO3)2·(H2O)4} n (1) and {[Zn(bte)2 (H2O)2](NO3)2} n (2) [bim?=?1,2-bis(imidazol-1-yl)ethane, bte?=?1,2-bis(1,2,4-triazol-1-yl)ethane] were synthesized and characterized. 1 possesses a double interpenetrating three-dimensional α-polonium cubic network and 2 consists of a two-dimensional (4,4) network. 相似文献
17.
Zavakhina M. S. Samsonenko D. G. Dybtsev D. N. Argent S. P. Blake A. J. Schröder M. Fedin V. P. 《Russian Chemical Bulletin》2015,64(12):2908-2913
Russian Chemical Bulletin - Chiral 2D and 3D metal-organic coordination polymers [Cu2(bpy)2(Hdml)2(HCOO)]-(HCOO)·2H2O (1) and [Cu(bpy)(Hphl)(HCOO)]·H2O (2) were synthesized by heating a... 相似文献
18.
Lei Guan Yaxu Chen Zhan Shi 《Phosphorus, sulfur, and silicon and the related elements》2013,188(12):1126-1133
AbstractHydrothermal reaction of Zn(NO3)2 · 6?H2O with 2-carboxyethyl(phenyl)phosphinate (H2L) and 4,4'-bipyridine (4,4′-bipy) led to a novel zinc(II) carboxyphosphinate [ZnL(4,4′-bipy)0.5]n (1). The zinc ion is tetrahedrally coordinated by two phosphinate oxygen atoms, one carboxylate oxygen atom, and one nitrogen atom of 4,4′-bipy ligand. The L2- ligand and zinc ion can be seen as three- and four-connected nodes, respectively. Compound 1 shows a layered network with (3,4)-connected topology. It exhibits a broad blue fluorescent emission band at 459?nm, which can be attributed to 4,4′-bipy intraligand emission as well as to H2L emission. It is a diamagnetic system between 300?K and 11?K. 相似文献
19.
Three new coordination polymers have been synthesized from 1,1′-biphenyl-2,2′-dicarboxylic acid (2,2-dpa), nitrogen-containing
coligands and Mn salts under hydrothermal conditions. The X-ray crystal structures of all three complexes are presented. With
the change of nitrogen-containing ligand, the structural features of the complexes also change. The complex prepared without
a nitrogen coligand exhibits a one-dimensional covalent chain-like structure, composed of the rare pentanuclear Mn building
unit. The complex with 4,4′-bipyridine as a secondary ligand shows a two-dimensional layer structure. With the chelating ligand
1,10-phenanthroline, a discrete molecular complex is synthesized. The magnetic properties of the complex with 4,4′-bipyridine
in the temperature range 1.99–300 K are reported. 相似文献
20.
《Journal of Coordination Chemistry》2012,65(21):3918-3931
Three new metal coordination polymers constructed from adipic acid and 2-(pyridin-3-yl)-(1H)-benzimidazole ligands, [M(ADP)(3PBI)2(H2O)2]·2H2O (M = Ni and Co for 1 and 2, respectively) and [Cd(ADP)(3PBI)(H2O)] (3) [ADP = adipic acid dianion; 3PBI = 2-(pyridin-3-yl)-(1H)-benzimidazole], have been synthesized by hydrothermal reactions and were characterized by X-ray single-crystal diffraction, elemental analyses, IR, powder X-ray diffraction, and thermogravimetry. Complexes 1 and 2 are isostructural. Both form a 1-D linear chain structure, which is further assembled into a 3-D supramolecular framework by π?π stacking and hydrogen bonding interactions. Complex 3 possesses a binuclear unit and displays a 2-D layer which is further extended to a 3-D supramolecular architecture via hydrogen bonding and other weak packing interactions. The luminescent properties of 3 were investigated in the solid state at room temperature. 相似文献