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1.
E Yang Rong‐Qiang Zhuang Jian‐Xin Chen 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(12):m612-m613
The title complex, {[Cd(C8H11O4)2(C10H8N2)(H2O)]·H2O}n, consists of linear chains formed through 4,4′‐bipyridine ligands linking seven‐coordinated CdII ions. Each CdII ion is in a distorted pentagonal–bipyramidal environment, coordinated by one water ligand, two 4‐carboxycyclohexane‐1‐carboxylate ligands and one bridging 4,4′‐bipyridine ligand to generate linear chains. The water molecules and the Cd atom on one side, and the 4,4′‐bipyridine unit on the other, are bisected by two sets of twofold axes. The carboxylate group of the 4‐carboxycyclohexane‐1‐carboxyl ligand chelates a CdII ion, while the (protonated) carboxyl group forms hydrogen bonds with adjacent chains, resulting in a layered structure. This is the first reported occurrence of a dicarboxycyclohexane ligand exhibiting a non‐bridging coordination mode. 相似文献
2.
Yu‐Ling Wang 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(11):m522-m524
In the title compound, {[Zn(C10H8N2)(H2O)4](C6H5O4S)2·3H2O}n, the Zn atom, the bipyridine ligand and one of water molecules are located on twofold rotation axes. The Zn atom is coordinated by four O atoms from four water molecules and two N atoms from two 4,4′‐bipyridine molecules in a distorted octahedral geometry. The Zn2+ ions are linked by the 4,4′‐bipyridine molecules to form a one‐dimensional straight chain propagating along the c axis. The 4‐hydroxybenzenesulfonate counter‐ions are bridged by the solvent water molecules through hydrogen bonds to generate a two‐dimensional layer featuring large pores. In the crystal packing, the intralayer pores form one‐dimensional channels along the c axis, in which the one‐dimensional [Zn(C10H8N2)(H2O)4]2+ chains are encapsulated. Electrostatic interactions between cations and anions and extensive hydrogen bonds result in a three‐dimensional supramolecular structure. 相似文献
3.
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
4.
Ann M. Chippindale Andrew R. Cowley Katherine J. Peacock 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(6):651-652
The title compound, [MnCl2(C10H8N2)]n, crystallizes with a two‐dimensional network constructed from linear chains of edge‐sharing MnCl4 square‐planar units cross‐linked by bidentate 4,4′‐bipyridine bridges. The Mn atom and the bipyridine moieties lie on sites with 222 crystallographic symmetry; the Cl atom lies on a twofold axis. The bipyridine molecule is twisted about the central C—C bond by 33.5 (3)°. 相似文献
5.
Hui‐Fen Qian Wei Huang 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(8):m349-m351
The title compound, [Cu(ClO4)(C5H6N2)2(C12H12N2)]ClO4, was prepared by in situ partial ligand substitution between 3‐aminopyridine and 4,4′‐dimethyl‐2,2′‐bipyridine at room temperature. The central copper(II) ion is five‐coordinated by one bidentate 4,4′‐dimethyl‐2,2′‐bipyridine molecule, two monodentate pyridine‐coordinated 3‐aminopyridine molecules and one apical O atom from the perchlorate counter‐ion. Intermolecular N—H⋯O and C—H⋯O hydrogen‐bonding interactions form a hydrogen‐bond‐sustained network. 相似文献
6.
Jn Van
o Oga vajlenov Jaromír Marek 《Acta Crystallographica. Section C, Structural Chemistry》2003,59(5):m190-m192
The title compound, K2[Cu2(NCS)2(C12H13NO3)2], consists of two K+ cations and (N‐salicylidene‐d ‐valinato)copper(II) and (N‐salicylidene‐l ‐valinato)copper(II) coordination units connected through three‐atom thiocyanate (μ‐NCS) bridges into a centrosymmetric dianion. The CuII atom adopts a square‐pyramidal coordination, with three donor atoms of the tridentate Schiff base and one N atom of the bridging ligand (μ‐NCS) in the basal plane. The axial position is occupied by the thiocyanate S atom of a symmetry‐related ligand at an apical distance of 2.9332 (10) Å. Coulombic interactions between six‐coordinated K+ ions and the heteroatoms of neighbouring dimeric anions leads to the formation of one‐dimensional chains of molecules parallel to [010]. The superposition of the normals of the pyramidal base planes in a direction close to [001] indicates possible π–π interactions between neighbouring units. 相似文献
7.
Zhong‐Lu You 《Acta Crystallographica. Section C, Structural Chemistry》2005,61(12):m532-m534
The title complex, [Cd2(C13H9Cl2N2O)2(NCS)2]n, is a novel thiocyanate‐bridged polynuclear cadmium(II) compound. The CdII atom is six‐coordinated in a distorted octahedral configuration, with one O and two N atoms of one Schiff base molecule and one terminal S atom of a bridging thiocyanate ligand defining the equatorial plane, and one terminal N atom of another bridging thiocyanate ligand and one O atom of another Schiff base molecule occupying axial positions. Adjacent inversion‐related [2,4‐dichloro‐6‐(2‐pyridylmethyliminomethyl)phenolato]cadmium(II) moieties utilize bridging phenolate and thiocyanate groups to form polymeric chains running along the b axis. 相似文献
8.
Sergio Baggio M. Enriqueta Díaz de Vivar María Teresa Garland Ricardo Baggio 《Acta Crystallographica. Section C, Structural Chemistry》2007,63(4):m157-m158
The title compound, {[Zn2(SO3)2(C10H8N2)]·H2O}n, is a two‐dimensional polymer built up of a [ZnSO3]n chain evolving around a 21 axis and interconnected by a 4,4′‐bipyridine spacer. The resulting two‐dimensional structures are linked, in turn, by hydrogen bonding mediated by the solvent water molecule. The organic ligand lies on a centre of symmetry located on the mid‐point of the bond between the rings, while the solvent water molecule is halved by a twofold axis passing through the O atom. 相似文献
9.
Pierre Thury Bernardo Masci 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(11):m556-m558
In the title dinuclear uranyl complex, (C18H38N2O6)[(UO2)2(NO3)4(OH)2]·H2O, each pair of uranyl ions in the two independent centrosymmetric dianionic dimers is bridged by the two hydroxide ions, with the nitrate ions ensuring equatorial hexagonal coordination. The dihydro[2.2.2]cryptand (4,7,13,16,21,24‐hexaoxa‐1,10‐diazabicyclo[8.8.8]hexacosane) dication presents an `in–in' conformation (endo protonation) and it is hydrogen bonded to the hydroxide ions, either directly or via a water molecule, resulting in the formation of linear hydrogen‐bonded polymers. 相似文献
10.
Yoshiko Okada Shinobu Kishi Yasuko Shishido Masako Kato 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(5):m171-m173
Dichloro(4,4′‐dipentyl‐2,2′‐bipyridine‐κ2N,N′)platinum(II), [PtCl2(C20H28N2)], adopts a discrete π–π stacking structure, where the alkyl chains are located in a random manner. In contrast, dichloro(4,4′‐diheptyl‐2,2′‐bipyridine‐κ2N,N′)platinum(II), [PtCl2(C24H36N2)], forms a layer structure comprised of alkyl chain layers and paired coordination sites, as observed for analogous complexes with longer alkyl chains. 相似文献
11.
Jian Zhang Zhao‐Ji Li Yi‐Hang Wen Yao Kang Ye‐Yan Qin Yuan‐Gen Yao 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(8):m389-m391
The title compound, [Cd(C6H4NO2)2(H2O)2]n, forms a one‐dimensional chain structure based on a Cd atom with approximate pentagonal bipyramidal coordination geometry and two nicotinate ligands in different coordination modes. One acts as a tridentate ligand, chelating one Cd atom through the carboxylate group while simultaneously binding to a second symmetry‐related Cd atom through the pyridine N atom; the other acts only as a bidentate ligand through its carboxylate group. Hydrogen bonds utilizing the coordinated water molecules, uncoordinated nitrogen and carboxylate O atoms as acceptors link the chains. 相似文献
12.
Le‐Qing Fan Ji‐Huai Wu 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(11):m548-m549
The title compound, [ZnI2(bipy)]n (bipy is 4,4′‐bipyridine, C10H8N2), has been prepared by the hydrothermal reaction of ZnI2 and bipy at 433 K. Each Zn atom is coordinated by two N atoms from two different bipy ligands and by two I atoms in a distorted tetrahedral geometry, with Zn—N distances ranging from 2.068 (7) to 2.101 (8) Å and Zn—I distances ranging from 2.5471 (13) to 2.5673 (13) Å. The molecular structure features a zigzag polymeric chain. Face‐to‐face π–π stacking interactions between adjacent bipy ligands stabilize the structure. 相似文献
13.
Alexander S. Lyakhov Pavel N. Gaponik Michail M. Degtyarik Ludmila S. Ivashkevich 《Acta Crystallographica. Section C, Structural Chemistry》2003,59(6):m204-m206
In the polymeric title complex, [CuCl2(C3H6N4)2]n, there are two ligands in the asymmetric unit. The Cu atom adopts an elongated octahedral geometry, with two 2‐ethyltetrazole ligands [Cu—N = 2.0037 (16) and 2.0136 (16) Å] and two Cl atoms [Cu—Cl = 2.2595 (6) and 2.2796 (6) Å] in equatorial positions. A Cl atom and a symmetry‐related 2‐ethyltetrazole molecule [Cu—Cl = 2.8845 (8) Å and Cu—N = 2.851 (2) Å] lie in the axial positions of the octahedron. One of the two 2‐ethyltetrazole ligands of the asymmetric unit exhibits bidentate binding to two Cu atoms through two N atoms of the tetrazole ring, whereas the other ligand is coordinated in a monodentate fashion via one tetrazole N atom. The Cu‐atom octahedra form dimer entities by sharing edges with equatorial and axial Cl atoms. The dimers are linked together through the 2‐ethyltetrazole ligands to form one‐dimensional polymeric zigzag chains extending along the b axis. The chains are connected into infinite layers parallel to the (10) plane via the 2‐ethyltetrazole ligands. 相似文献
14.
Zhe‐Hui Weng Zi‐Lu Chen Fu‐Pei Liang 《Acta Crystallographica. Section C, Structural Chemistry》2008,64(1):m64-m66
The title compound, [Mn7(C2H2N3)8(C2H3O2)4(OH)2]n, is composed of centrosymmetric heptanuclear building units with the central Mn atom on an inversion center. In the building block, three MnII ions are held together by one μ3‐hydroxide group, two μ2‐triazolate (trz) ligands and two μ2‐acetate groups, forming an Mn3 cluster. Two Mn3 clusters are bridged by an Mn atom via two μ2‐trz ligands and two μ2‐O atoms from two acetate ions to construct a heptanuclear building block. The heptanuclear building units, lying parallel to each other along the b direction, form one‐dimensional ladder‐like chains and are further interlinked, resulting in a three‐dimensional framework through Mn—Ntrz bonds. 相似文献
15.
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
16.
Hong‐Xi Li Yong Zang Mei‐Ling Cheng Jian‐Ping Lang 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(2):m74-m77
The Zn atom in dichloro[(3,5‐dimethyl‐1H‐pyrazol‐1‐yl)methane]zinc(II), [ZnCl2(C11H16N4)], (I), is tetrahedrally coordinated by two N atoms from one bis(3,5‐dimethylpyrazolyl)methane ligand and two terminal Cl atoms. The molecule has no crystallographic symmetry. One H atom of the CH2 group of the bis(3,5‐dimethylpyrazolyl)methane ligand interacts with a Cl atom of an adjacent molecule to yield intermolecular C—H⋯Cl contacts, thereby forming a one‐dimensional zigzag chain extending along the b axis. On the other hand, in di‐μ‐chloro‐bis{chloro[(3,5‐dimethyl‐1H‐pyrazol‐1‐yl)methane]cadmium(II)}, [Cd2Cl4(C11H16N4)2], (II), each of the two crystallographically equivalent Cd atoms is pentacoordinated by two N atoms from one bis(3,5‐dimethylpyrazolyl)methane ligand, and by one terminal and two bridging Cl− anions. The molecule has a crystallographic centre of symmetry located at the mid‐point of the Cd⋯Cd line. One H atom of the CH2 group of the bis(3,5‐dimethylpyrazolyl)methane ligand interacts with a Cl atom of an adjacent molecule to produce pairwise intermolecular C—H⋯Cl contacts, thereby affording chains of molecules running along the c axis. 相似文献
17.
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
18.
Xin‐Lei Zhi Wen‐Hua Zhang Yong Zhang Jian‐Ping Lang 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(11):m554-m556
In the title compound, [Co(C5H7O2)2(C13H14N2)]n or [Co(acac)2(dadpm)]n, where acac is acetylacetonate and dadpm is 4,4′‐methylenedianiline, the Co atom is on a centre of symmetry and is octahedrally coordinated by four O atoms from two acac anions and by two N atoms from two dadpm ligands. Each dadpm ligand, which has a twofold axis passing through its methylene C atom, bridges two Co atoms to form a spiral polymeric chain. Neighbouring chains connect via hydrogen bonds to form a two‐dimensional network. 相似文献
19.
Xin Qiang Wang Wen Tao Yu Dong Xu Meng Kai Lu Duo Rong Yuan 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(4):418-420
In the title complex, [MnHg(SCN)4(C2H6SO)2]n, each Hg atom is tetrahedrally coordinated to four S atoms of the SCN ions, while each Mn atom is octahedrally coordinated to four N atoms of the SCN ions and two O atoms of the dimethyl sulfoxide molecules which occupy the trans positions. Each pair of Hg and Mn atoms is bridged by one SCN ion. Two Mn atoms, two Hg atoms and four SCN ions make a 16‐membered ring which organises into a two‐dimensional network. The dimethyl sulfoxide ligands are extended perpendicular to the plane on both sides. 相似文献
20.
Juan Granifo María Teresa Garland Ricardo Baggio 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(2):m97-m100
The structure of the title compound, catena‐poly[[bis(1,1,1,5,5,5‐hexafluoropentane‐2,4‐dionato‐κ2O,O′)zinc(III)]‐μ‐4,4′‐bipyridine‐κ2N:N′], [Zn(C5HF6O2)2(C10H8N2)]n, consists of polymeric chains, running in two perpendicular directions, organized as planes normal to the tetragonal axis. The elemental unit of the chains is the zinc(II) coordination polyhedron bisected by a twofold symmetry axis, and thus only half of the unit is independent. The octahedral coordination geometry of the metal centre is composed of two oxygen‐chelating (symmetry‐related) hexafluoroacetylacetonate groups and two translationally related 4,4′‐bipyridine groups, which act as connecting agents in the polymer structure. The stabilization of this architecture of chains and planes is associated with a number of weak C—H⋯O and C—H⋯F hydrogen bonds. 相似文献