共查询到20条相似文献,搜索用时 948 毫秒
1.
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
2.
Yu‐Xiang Gao Xi‐Quan Che Jing‐Wei Wang 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(9):m440-m442
In the novel title binuclear zinc(II) Schiff base complex, bis(μ‐11‐thiosemicarbazonoindeno[1,2‐b]quinoxaline‐8‐carboxylato)bis[(dimethyl sulfoxide)zinc(II)] dimethyl sulfoxide trisolvate, [Zn2(C17H9N5O2S)2(C2H6OS)2]·3C2H6OS, each ZnII atom is five‐coordinated and situated in a distorted square‐pyramidal environment, coordinated by two L2− ligands and one dimethyl sulfoxide molecule. Each L2− ligand, which coordinates to two ZnII atoms, has two parts. One part, acting in a tridentate chelating mode, coordinates to one ZnII atom through two N atoms and one S atom, while another part coordinates to another ZnII atom through a monodentate carboxylate group. The whole complex has a dimeric structure. The coordination mode of the nearly planar L2− ligand is quite different from the most common mode for Schiff bases. 相似文献
3.
Zhong‐Lu You 《Acta Crystallographica. Section C, Structural Chemistry》2005,61(11):m466-m468
The two title complexes, [Zn2(C13H9Cl2N2O)2(C2H3O2)2], (I), and [Cu2(C13H9Cl2N2O)2(NCS)2], (II), are dinuclear Schiff base compounds. Both molecules are located on crystallographic centres of inversion. In (I), the ZnII atom is five‐coordinated in a trigonal–bipyramidal coordination, with one imine N atom of one Schiff base and two acetate O atoms defining the basal plane, and one O atom and one pyridine N atom of the Schiff base occupying the axial positions, while in (II), the CuII atom is five‐coordinated in a square‐pyramidal coordination, with one O and two N atoms of one Schiff base and one terminal N atom of a bridging thiocyanate ligand defining the basal plane, and one terminal S atom of another bridging thiocyanate ligand occupying the apical position. The different bridging ligands lead to the different coordinations of the complexes. 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.
Quan‐Zheng Zhang Can‐Zhong Lu 《Acta Crystallographica. Section C, Structural Chemistry》2005,61(2):m78-m80
In the title compound, [Mn2(C7H6NO2)2(C2H3O2)2(C10H8N2)2], the two MnII atoms are each coordinated by one 2,2′‐bipyridyl molecule, one 4‐aminobenzoate ion and two acetate ions. The two Mn atoms exhibit different coordination environments: one is coordinated by two N and four O atoms, while the other is coordinated by two N and three O atoms. The two Mn atoms are bridged by two acetate ions in a syn–anti mode, with an Mn⋯Mn distance of 4.081 (1) Å. 相似文献
6.
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
7.
Yu‐Mei Zhang Yu‐Ping Zhang Bao‐Long Li Yong Zhang 《Acta Crystallographica. Section C, Structural Chemistry》2007,63(3):m120-m122
The coordination geometry of the ZnII atom in the title complex, [Zn2(NCS)4(C6H8N6)2], is that of a distorted tetrahedron, in which the ZnII atom is coordinated by four N atoms from the triazole rings of two symmetry‐related 1,2‐bis(1,2,4‐triazol‐1‐yl)ethane ligands and two thiocyanate ligands. Two ZnII atoms are bridged by two organic ligands to form a dimer. The dimer lies about an inversion center. 相似文献
8.
Yoshiyuki Kani Shigeru Ohba Yuzo Nishida 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(5):e194-e194
In the title complex, [Mn2(C16H14N2O2)2(C2H3O2)]ClO4, two [Mn(salen)] moieties [salen is bis(salicylidene)ethylenediamine] are connected through a μ‐acetate bridge in a syn–anti fashion. The Mn?Mn distance is 5.365 (1) Å. 相似文献
9.
Zhan Shi Ying Hou Jia Hua Guanghua Li Shouhua Feng 《Acta Crystallographica. Section C, Structural Chemistry》2003,59(8):m337-m338
The solvothermal reaction of zinc(II) acetate with 1,3,5‐benzenetricarboxylic acid and 4,4′‐bipyridine in 1‐butanol and acetic acid solution gives the title complex, [Zn3(C9H3O6)2(C10H8N2)(H2O)2]n. There are two different coordination environments for the Zn atom, namely ZnNO2(H2O) and ZnO4; in the latter case, the Zn atom lies on a twofold symmetry axis. Carboxylate‐bridged Zn3(O2C)6 clusters are connected through 1,3,5‐benzenetricarboxylate and 4,4′‐bipyridine ligands (which lie about inversion centers), yielding a three‐dimensional framework. 相似文献
10.
Veysel T. Yilmaz Sema Caglar William T. A. Harrison 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(1):m35-m38
The structures of trans‐bis[2‐(aminomethyl)pyridine‐κ2N,N′]bis(saccharinato‐κN)zinc(II), [Zn(C7H4NO3S)2(C6H8N2)2], (I), and [2‐(aminoethyl)pyridine‐κ2N,N′]bis(saccharinato‐κN)zinc(II), [Zn(C7H4NO3S)2(C7H10N2)], (II), exhibit octa‐ and tetrahedrally coordinated ZnII atoms, respectively. The diamine ligands behave as N,N′‐bidentate ligands, while saccharinate (sac) is coordinated through the N atom. In (I), the complex lies about an inversion centre with the Zn atom disordered and displaced by 0.256 (2) Å from a centre of symmetry towards a sac N atom. The crystal structure of (I) is stabilized by N—H⋯O hydrogen bonds and the crystal packing of (II) is determined by hydrogen bonding as well as weak π–π stacking interactions between the sac ligands. 相似文献
11.
Alexander J. Blake Lorenzo Tei Claire Wilson Martin Schrder 《Acta Crystallographica. Section C, Structural Chemistry》2003,59(2):m43-m45
The asymmetric unit of {[4,7‐bis(2‐aminoethyl)‐1,4,7‐triazacyclononan‐1‐yl]acetato}zinc(II) triaqua{μ‐[4,7‐bis(2‐aminoethyl)‐1,4,7‐triazacyclononan‐1‐yl]acetato}lithium(I)zinc(II) chloride diperchlorate, [Zn(C12H26N5O2)][LiZn(C12H26N5O2)(H2O)3]Cl(ClO4)2, obtained from the reaction between the lithium salt of 4,7‐bis(2‐aminoethyl)‐1,4,7‐triazacyclononane‐1‐acetate and Zn(ClO4)2, contains two ZnII complexes in which each ZnII ion is six‐coordinated by five N‐atom donors and one O‐atom donor from the ligand. One carboxylate O‐atom donor is not involved in coordination to a ZnII atom, but coordinates to an Li+ ion, the tetrahedral geometry of Li+ being completed by three water molecules. The two complexes are linked via a hydrogen bond between a primary amine N—H group and the carboxylate‐O atom not involved in coordination to a metal. 相似文献
12.
Xiao‐Feng Chen Shu‐Hua Liu Xu‐Hui Zhu Jagadese J. Vittal Goek‐Kheng Tan Xiao‐Zeng You 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(1):42-43
The title compound, [Zn2(C5H8NS2)4(C10H8N2)], consists of two bis(pyrrolidinedithiocarboxylato)zinc molecules bridged by a 4,4′‐bipyridine molecule, and has a 222 symmetry. Each Zn atom forms a five‐coordinate pseudo‐square‐based pyramidal arrangement, with four Zn—S interactions and one Zn—N interaction; the Zn—N distance is 2.085 (3) Å and the Zn—S distances are in the range 2.3319 (8)–2.6290 (9) Å. 相似文献
13.
Vladimír Zelek Michal Sabo Werner Massa Juraj ernk 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(2):m85-m87
The title complex, [Zn2(C7H5O2)4(C20H21NO4)2], forms dimers of the paddle‐wheel cage type located at crystallographic inversion centres. The two Zn atoms [Zn⋯Zn = 3.0533 (4) Å] are connected by four syn–syn benzoate ligands. The apical positions of the square‐pyramidal zinc coordination polyhedra are occupied by the N atoms of the papaverine ligand. Upon coordination, the mutual orientation of the phenyl and isoquinoline rings in papaverine is changed compared with that in the uncoordinated ligand. 相似文献
14.
Jean‐Claude Daran Pascale Lemoine Bernard Viossat 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(4):m210-m212
The asymmetric unit of the title compound, [Zn(C10H6NO2)2(C12H8N2)]·1.5C3H7NO, contains one monomeric zinc complex and 1.5 disordered dimethylformamide solvate molecules. The Zn atom is coordinated to one 1,10‐phenanthroline ligand and to two isoquinolinecarboxylate anions (IQC?) via their N and O atoms. The complex exhibits a distorted octahedral geometry around the ZnII atom, with the apical positions occupied by the O atoms of the IQC? ligands. The Zn atom lies 0.049 (1) Å out of the basal plane. The crystal packing is characterized by several hydrogen bonds. 相似文献
15.
Yong Cui Xing Zhang Fakun Zheng Jing Ren Gang Chen Yitai Qian Jinshun Huang 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(10):1198-1200
The crystal structures of hexa‐μ‐propionato‐1:2κ6O:O′;1:3κ6O:O′‐diquinoline‐2κN,3κN‐calcium(II)dizinc(II), [CaZn2(C3H5O2)6(C9H7N)2], and hexa‐μ‐pivalato‐1:2κ6O:O′;1:3κ6O:O′‐diquinoline‐2κN,3κN‐calcium(II)dicobalt(II), [CaCo2(C5H9O2)6(C9H7N)2], are described. Both contain a linear array of one CaII ion and two MII (M = Zn, Co) ions connected by two sets of three carboxylate ligands in syn–syn bridging modes. The distorted tetrahedral geometry around the MII ion is completed by a quinoline N atom. The central CaII ion occupies a crystallographic inversion centre and is octahedrally coordinated by six carboxyl O atoms in each structure. The ZnII?CaII and CoII?CaII distances are 3.8504 (9) and 3.7929 (5) Å, respectively. 相似文献
16.
Li‐Ming Wu Ling Chen Jingcao Dai Ping Lin Wen‐Xin Du Xin‐Tao Wu 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(9):e382-e382
The title compound, [Sn(C5H5NS)2(C2H4S2)2], was obtained from a 1:2 mixture of bis(ethane‐1,2‐dithiolato)tin(IV) and 2‐mercaptopyridine. The molecules are discrete monomeric trans‐octahedral units, with the SnIV atom at the centre of symmetry, planar 2‐mercaptopyridine zwitterions and SnS2C2 groups in twist–envelope conformations. The 2‐mercaptopyridine ligands are monodentate and are bonded through the S atoms. The S—Sn distances between the S atom of edt (edt is ethane‐1,2‐dithiolate) and the Sn atom are 2.473 (1) and 2.505 (1) Å, which are slightly longer than the S—Sn distance in Sn(edt)2 of 2.390 (1) Å. The bond between the 2‐mercaptopyridine S atom and the Sn atom are, remarkably, weaker than the S—Sn bond involving edt. 相似文献
17.
Jaromír Marek Pavel Kopel Zdenk Trvní
ek 《Acta Crystallographica. Section C, Structural Chemistry》2003,59(12):m558-m560
In the crystal structure of the title compound, [N,N′‐bis(3‐aminopropyl)ethylenediamine‐κ4N,N′,N′′,N′′′][1,3,5‐triazine‐2,4,6(1H,3H,5H)‐trithionato(2−)‐κ2N,S]zinc(II) ethanol solvate, [Zn(C8H22N4)2(C3HN3S3)]·C2H6O, the ZnII atom is octahedrally coordinated by four N atoms [Zn—N = 2.104 (2)–2.203 (2) Å] of a tetradentate N‐donor N,N′‐bis(3‐aminopropyl)ethylenediamine (bapen) ligand and by two S and N atoms [Zn—S = 2.5700 (7) Å and Zn—N = 2.313 (2) Å] of a trithiocyanurate(2−) (ttcH2−) dianion bonded as a bidentate ligand in a cis configuration. The crystal structure of the compound is stabilized by a network of hydrogen bonds. 相似文献
18.
Ricardo Baggio Mireille Perec Maria Teresa Garland 《Acta Crystallographica. Section C, Structural Chemistry》2003,59(5):m175-m177
A polymeric heterometallic compound, {[Gd2Zn3(C4H4O5)6(H2O)6]·12H2O}n, comprising zinc(II) and gadolinium(III) cations bridged by carboxylate groups from oxydiacetate ligands, is presented. The GdIII cations lie at sites with crystallographic 32 symmetry and display a tricapped trigonal‐prism arrangement, which is defined by six carboxyl and three ether O atoms. The ZnII cations lie at sites with imposed 2/m symmetry and are octahedrally coordinated by four carboxyl O atoms and two apical water ligands, which form strong intramolecular hydrogen bonds. Comparison is made with the previously reported isostructural homologous copper–gadolinium complex. 相似文献
19.
Kaliyamoorthy Panneerselvam Tian‐Huey Lu Ta‐Yung Chi Shu‐Fang Tung Chung‐Sun Chung 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(4):e128-e129
The crystal structure of the title compound, [CoCl(C18H37N4O2){ZnCl3}], has been determined by X‐ray diffraction.C‐meso‐5,5,7,12,12,14‐Hexamethyl‐1,4,8,11‐tetraazacyclotetradecane‐N‐acetate acts as a bridging ligand to coodinate with CoIII and ZnII ions. The CoIII ion is six‐coordinate in a nearly octahedral environment provided by one Cl atom, four N atoms of the bridging ligand, and one O atom. The ZnII ion is four‐coordinate in a distorted tetrahedral environment completed by three Cl atoms and an O atom of the bridging ligand. 相似文献
20.
Chang‐Sheng Gu Xiao‐Min Hao Shu‐Xia Guan Ji‐Wei Liu 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(11):m516-m518
In the title coordination polymer, {[Ba(C8H5Cl2O3)2(H2O)]·H2O}n, each BaII atom is nine‐coordinated by six carboxylate O atoms and one ether O atom from five symmetry‐related 2,4‐dichlorophenoxyacetate ligands, and by two O atoms from water molecules, thus defining a distorted tricapped trigonal prism. The BaII ions are bridged by bidentate water molecules and by tridentate and tetradentate 2,4‐dichlorophenoxyacetate groups, leading to a two‐dimensional layer structure. The crystal structure is further stabilized by hydrogen‐bonding interactions within each layer. 相似文献