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1.
Hong‐Zhen Xie Dan‐Yi Wei Yue‐Qing Zheng 《Acta Crystallographica. Section C, Structural Chemistry》2005,61(9):m419-m420
The title compound, [Co(C6H9O4)2(C12H12N2)(H2O)2]n, crystallizes in the space group P. The Co atom is on a center of symmetry and the 1,2‐di‐4‐pyridylethane (bpe) ligand also sits across a crystallographic inversion center. The Co atom is octahedrally coordinated by two aqua ligands, two carboxylate O atoms and two pyridyl N atoms, and is bridged by the anti‐bpe ligands to generate one‐dimensional {[Co(Hadip)2(H2O)2](bpe)2/2} chains (Hadip is 5‐carboxypentanoate), which are further interlinked by O—H⋯O and C—H⋯O hydrogen bonds into two‐dimensional layers. 相似文献
2.
Mrcia R. Siqueira Liange de Oliveira Diehl Robert A. Burrow 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(2):m67-m69
In the centrosymmetric title compound, [Co2(C12H10O2P)4(C5H5N)4(H2O)2], each approximately octahedral Co atom features two trans‐coordinated pyridine molecules, one water molecule, a terminally coordinated monodentate diphenylphosphinate ligand, and two bidentate diphenylphosphinate ligands that bridge the two Co atoms across a centre of inversion to form a dimeric binuclear complex. The discrete molecules are linked by double hydrogen bonds between the terminally coordinated diphenylphosphinate ligand and the water molecule to form a continuous chain along the crystallographic b axis. 相似文献
3.
Fang‐Fang Jian Yu‐Ping Tong Hai‐Lian Xiao Ping‐Ping Sun Pu‐Su Zhao 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(7):m348-m349
The title compound, [Co2(H2PO4)4(C10H8N2)2], is dinuclear, centred on a symmetry centre of the P space group. Each Co atom has a distorted square‐pyramidal coordination involving two N atoms from a bipyridine molecule and three O atoms from two bridging and one terminal dihydrogen orthophosphate anion. The molecular structure and packing are stabilized by intermolecular hydrogen‐bond interactions. 相似文献
4.
Thidarat Chotkhun Sujittra Youngme Narongsak Chaichit 《Acta Crystallographica. Section C, Structural Chemistry》2007,63(2):m59-m61
In the title dinuclear acetate‐bridged complex, [Cu2(C2H3O2)3(NCS)(C10H9N3)2], the two Cu atoms are five‐coordinated, with a basal plane consisting of two N atoms of a di‐2‐pyridylamine (dpyam) ligand and two O atoms of two different acetate ligands. The axial positions of these Cu atoms are coordinated to N and O atoms from thiocyanate and acetate molecules, respectively, leading to a distorted square‐pyramidal geometry with τ values of 0.30 and 0.22. Both CuII ions are linked by an acetate group in the equatorial–equatorial positions and have syn–anti bridging configurations. Hydrogen‐bond interactions between the amine H atom and the coordinated and uncoordinated O atoms of the acetate anions generate an infinite one‐dimensional chain. 相似文献
5.
Huub Kooijman Anthony L. Spek Gerard A. van Albada Jan Reedijk 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(2):m124-m126
In the crystal structure of the title compound, [Cu(C2N3)2(C12H12N2)]n, the CuII atom adopts a distorted square‐pyramidal geometry, the basal plane of which is formed by two N atoms of the bipyridine ligand, one N atom of a bidentate dicyanamide anion and one N atom of a monodentate dicyanamide anion [Cu—N = 1.9760 (15)–2.0157 (15) Å]. The apical position is occupied by an N atom of a bidentate dicyanamide anion, located 2.2468 (16) Å from the Cu atom, thus forming a one‐dimensional polymeric chain. 相似文献
6.
Jun Luo Bao‐Shu Liu Xi‐Geng Zhou Lin‐Hong Weng Yan‐Rong Li Hui‐Xia Wu 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(10):m520-m522
Two new complexes, [Co(C2N3)2(C8H6N2)2], (I), and [Cu(C2N3)2(C8H6N2)2], (II), are reported. They are essentially isomorphous. Complex (I) displays distorted octahedral geometry, with the Co atom coordinated by four dicyanamide nitrile N atoms [Co—N = 2.098 (3) and 2.104 (3) Å] in the basal plane, along with two monodentate quinoxaline N atoms [Co—N = 2.257 (2) Å] in the apical positions. In complex (II), the Cu atom is surrounded by four dicyanamide nitrile N atoms [Cu—N = 2.003 (3) and 2.005 (3) Å] in the equatorial plane and two monodentate quinoxaline N atoms [Cu—N = 2.479 (3) Å] in the axial sites, to form a distorted tetragonal–bipyramidal geometry. The metal atoms reside on twofold axes of rotation. Neighbouring metal atoms are connected via double dicyanamide bridges to form one‐dimensional infinite chains. Adjacent chains are then linked by π–π stacking interactions of the quinoxaline molecules, resulting in the formation of a three‐dimensional structure. 相似文献
7.
En Tang Zhao‐Ji Li Yu‐Mei Dai Yuan‐Gen Yao 《Acta Crystallographica. Section C, Structural Chemistry》2005,61(2):m61-m63
The title compound, [CoII(C10H8O6)(C10H8N2)(H2O)2]n, was obtained by the hydrothermal reaction of CoSO4 with benzene‐1,4‐dioxydiacetate [systematic name: p‐phenylenebis(oxyacetate)] and 4,4′‐bipyridine (4,4′‐bpy). The Co atom lies at an inversion center and the benzene‐1,4‐dioxydiacetate and 4,4′‐bipyridine moieties lie about other inversion centers. The benzene‐1,4‐dioxydiacetate ligands bridge the octahedral CoII coordination centers, forming a one‐dimensional zigzag chain. The chains are further bridged by 4,4′‐bpy ligands, forming a novel two‐dimensional supramolecular architecture. Hydrogen‐bonding interactions between the coordinated water molecules and the carboxylate O atoms lead to the formation of a three‐dimensional network structure. 相似文献
8.
Tetrakis(2,2′‐bipyridine‐κ2N,N′)tetrakis(μ‐salicylato‐κ3O,O′:O′′)‐quadro‐tetrazinc(II) decahydrate
Yue Wang Mamiko Odoko Nobuo Okabe 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(10):m479-m481
The title compound, [Zn4(C7H4O3)4(C10H8N2)4]·10H2O, crystallizes as a centrosymmetric tetranuclear cyclic complex containing four ZnII atoms bridged by four carboxylate groups from salicylate ligands, with a syn–anti configuration. Each ZnII atom has a distorted trigonal–bipyramidal coordination geometry, formed by two N atoms of a 2,2′‐bipyridine ligand and three O atoms from two salicylate ligands. The complex is stabilized by intramolecular π–π interactions between pairs of bipyridine rings and a 16‐membered gear‐wheel‐shaped cyclic framework. The hydrogen‐bonding network is formed via the water molecules. 相似文献
9.
Jian‐Li Lin Yue‐Qing Zheng 《Acta Crystallographica. Section C, Structural Chemistry》2005,61(12):m501-m503
In the title compound, [Cu2(C6H8O4)(C6H9O4)2(C10H8N2)2(H2O)2]n, the square‐pyramidally coordinated Cu atoms are bridged by both 4,4‐bipyridine and adipate ligands into ladder‐like chains, with exo‐orientated 5‐carboxypentanoate ligands pendant from both side rails. Half of the adipate ligand is related to the other half by inversion symmetry. Interchain O—H⋯O hydrogen bonds from the aqua ligands to the carbonyl O atoms of the 5‐carboxypentanoate ligands are responsible for the formation of two‐dimensional grid‐like (4,4)‐networks, which complete a twofold interpenetration. 相似文献
10.
Shan Gao Ji‐Wei Liu Li‐Hua Huo Zhi‐Zhong Sun Jin‐Sheng Gao Seik Weng Ng 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(8):m363-m365
In the title neutral coordination polymer, [Cd(C6H3ClNO2)2(H2O)2]n, each CdII ion is coordinated by one N and four O atoms from three 2‐chloronicotinate ligands and by two aqua ligands, defining a distorted monocapped octahedral coordination geometry. Adjacent Cd atoms are linked by the pyridyl N atom and the bidentate carboxylate functional group of a 2‐chloronicotinate ligand, forming a one‐dimensional infinite chain along the b axis. The Cd⋯Cd distance is 8.112 (3) Å. These chains are linked by O—H⋯O and O—H⋯N hydrogen bonds into a three‐dimensional network structure. 相似文献
11.
Hong‐Yin He Jie Chen Xiao‐Hua Wang Long‐Guan Zhu 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(10):m540-m542
The title compound, [Co(C8H4NO2)2(H2O)2]n, which was obtained by the reaction of CoCl2·6H2O with 4‐cyanobenzoic acid, is the first two‐dimensional 4‐cyanobenzoate cobalt(II) polymer. The Co atom lies on a centre of symmetry and its coordination polyhedron is a slightly distorted octahedron, defined by two water and four carboxylate O atoms. The 4‐cyanobenzoate (cba) anion is bridging in a syn‐skew coordination mode, which ensures a two‐dimensional architecture with the building block Co4(cba)4. 相似文献
12.
Fen Sun Yan‐Tuan Li Zhi‐Yong Wu Yu‐Lan Song Man Jiang 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(12):m584-m586
The structure of the title compound, [Cu2(C12H24N4O2)(C3H4N2)2(CH4O)2](ClO4)2 or [Cu2(dmoxpn)(HIm)2(CH3OH)2](ClO4)2, where dmoxpn is the dianion of N,N′‐bis[3‐(dimethylamino)propyl]oxamide and HIm is imidazole, consists of a centrosymmetric trans‐oxamidate‐bridged copper(II) binuclear cation, having an inversion centre at the mid‐point of the central C—C bond, and two perchlorate anions. The CuII atom has square‐pyramidal coordination geometry involving two N atoms and an O atom from the dmoxpn ligand, an N atom from an imidazole ring, and an O atom from a methanol molecule. The crystal structure is stabilized by O—H⋯O, N—H⋯O and C—H⋯O hydrogen bonds and imidazole π–π stacking interactions to form a three‐dimensional supramolecular array. 相似文献
13.
Marijana estan Gerald Giester Berislav Peri 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(11):m595-m597
The synthesis and crystal structure of the mononuclear title compound, [Co(C2O4)(C10H8N2)2]·5H2O, is reported. The Co atom is six‐coordinated by two O atoms of a bidentate oxalate group and by four N atoms of two bipyridine ligands. The neutral [Co(C2O4)(C10H8N2)2] entities are connected by π–π stacking interactions of the aromatic systems into a two‐dimensional layer, interconnected through a ladder‐like hydrogen‐bonding pattern of solvate water molecules. 相似文献
14.
Kou‐Lin Zhang Jian‐Guo Lin Ya‐Qiong Wang Wen‐Lin Xu Jiu‐Tong Chen 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(9):m454-m456
The title compound, [Zn(C7H4NO4)2(C12H8N2)(H2O)], has been synthesized. X‐Ray analysis reveals that it is a neutral zinc(II) mononuclear carboxylate complex based on mixed N‐ and O‐donor ligands. The Zn atom is five‐coordinate in a distorted trigonal–bipyramidal coordination environment involving two O atoms of two monodentate 2‐nitrobenzoate molecules, two N atoms of a 1,10‐phenanthroline molecule and one O atom of a water molecule. The axial positions are occupied by a carboxylate O atom from the 2‐nitrobenzoate ligand and an N atom from the 1,10‐phenanthroline ligand [N—Zn—O = 167.66 (9)°]. 相似文献
15.
Jun Luo Xin‐Rong Zhang Li‐Li Cui Wei‐Quan Dai Bao‐Shu Liu 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(12):m614-m616
The two new title complexes, [Mn(C5H3N6)2(H2O)2] and [Zn(C5H3N6)2(H2O)2], are isomorphous. In both compounds, the metal atom is located on an inversion center and is coordinated by four N atoms from two 5‐(pyrazin‐2‐yl)‐1H‐tetrazolate anions in the basal plane and by two O atoms of water ligands in the apical positions to form a distorted octahedral geometry. Intermolecular hydrogen‐bond interactions between the uncoordinated N atoms of the tetrazolate anions and the H atoms of the water molecules lead to the formation of a three‐dimensional network. 相似文献
16.
Ivan Poto
k Milan Bur
k Christoph Wagner Lothar Jger 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(6):m327-m329
The crystal structure of the title compound, [Cu(C2N3)2(C10H8N2)]n, is formed by neutral zigzag chains of the [–NC–N–CN–Cu{(bpy)N(CN)2}–NC–N–CN–] type running along the c axis (bpy is 2,2′‐bipyridine). The Cu atoms in the chains are pentacoordinated in the form of a distorted tetragonal pyramid, with a CuN5 chromophore. The coordination sites are occupied by two N atoms of one bpy molecule in the basal plane [Cu—N 2.018 (4) and 2.025 (2) Å] and by three terminal N atoms of two dicyanamide ligands. One of the dicyanamide ligands is coordinated in a monodentate fashion through a nitrile N atom in the basal plane [Cu—N 1.963 (4) Å]. The second acts as an end‐to‐end bridging ligand to a neighbouring Cu atom and is coordinated by one nitrile N atom in the basal plane [Cu—N 2.001 (2) Å], while the second nitrile N atom occupies the apical position [Cu—N 2.159 (2) Å] and originates from the bridge connecting another Cu atom. The shortest intrachain Cu?Cu distance is 8.212 (1) Å, as a consequence of the large bridging ligand, whereas the minimum interchain distance between Cu atoms is only 5.77 (7) Å, because of the interdigitation of the chains. 相似文献
17.
Yan Zheng 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(10):m471-m472
In the title complex, [Ag(NO3)(C14H14N4S4)]n, the AgI atom lies on a twofold axis and shows a distorted tetrahedral coordination, comprised of two N‐atom donors from two thiadiazole groups of separate ligands and two O‐atom donors from one nitrate ligand. Each bis(thioether) ligand also lies on a twofold axis and bridges two adjacent Ag atoms to form an infinite chain along the c axis, with an Ag⋯Ag separation of 11.462 (4) Å. Adjacent one‐dimensional chains are further linked into double‐chain motifs through weak Ag⋯S and π–π stacking interactions. 相似文献
18.
Guohong Zhang Yongge Wei Ping Wang Hongyou Guo 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(12):m605-m607
The title compound, [Co(C12H6N2O4)(H2O)2]n, has been hydrothermally synthesized and structurally characterized. It consists of polymeric chains of [Co{μ‐(2,2′‐bipyridyl‐3,3′‐dicarboxylato‐κ4N,N′:O,O′)}(H2O)2] units, in which each CoII cation is octahedrally coordinated by two chelating pyridyl N atoms, two chelating carboxyl O atoms from different carboxylate groups of another bipyridyl ligand, and two water molecules as terminal ligands. A crystallographic twofold axis parallel to the chain axis, passes through the Co atom. 相似文献
19.
trans‐Diaquabis(5‐carboxy‐1H‐imidazole‐4‐carboxylato‐κ2N3,O4)cobalt(II) 4,4′‐bipyridine solvate
Rong Cao Yu‐Ling Wang Wen‐Hua Bi 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(12):m609-m611
In the title compound, [Co(C5H3N2O4)2(H2O)2]·C10H8N2, the Co atom is trans‐coordinated by two pairs of N and O atoms from two monoanionic 4,5‐dicarboxyimidazole ligands, and by two O atoms from two coordinated water molecules, in a distorted octahedral geometry. The 4,4′‐bipyridine solvent molecule is not involved in coordination but is linked by an N—H⋯N hydrogen bond to the neutral [Co(C5H3N2O4)2(H2O)2] molecule. Both molecules are located on inversion centers. The crystal packing is stabilized by N—H⋯N and O—H⋯O hydrogen bonds, which produce a three‐dimensional hydrogen‐bonded network. Offset π–π stacking interactions between the pyridine rings of adjacent 4,4′‐bipyridine molecules were observed, with a face‐to‐face distance of 3.345 (1) Å. 相似文献
20.
Qi‐Wei Zhang Yi‐Hang Wen Yun‐Long Feng 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(6):m255-m257
The title compound, [Zn2(C5H6O4)2(C13H14N2)]n or [Zn2(glu)2(bpp)]n, is a novel zinc polymer based on mixed flexible glutarate (glu) and 1,3‐di‐4‐pyridylpropane (bpp) ligands. The ZnII center has a distorted tetrahedral geometry and the central atom of the bpp ligand is located at a special site with a C2 axis passing through it. A layer is formed by Zn–glu bonding. Such layers are pillared by bpp ligands, forming a three‐dimensional framework with large channels. The inverted interpenetration of two three‐dimensional frameworks completes the molecular structure. 相似文献