共查询到20条相似文献,搜索用时 15 毫秒
1.
Zhi‐Yong Wu Duan‐Jun Xu Yue Luo Jing‐Yun Wu Michael Y. Chiang 《Acta Crystallographica. Section C, Structural Chemistry》2003,59(8):m307-m309
The title compound, [Cu(C4H4O5)(C6H6N4S2)]·H2O, displays a square‐pyramidal coordination geometry. The tridentate oxydiacetate dianion chelates the CuII atom in the facial mode. The large difference [0.487 (4) Å] between the longest Cu—O distance in the basal plane and that in the apical direction correlates with the small displacement of the CuII atom [0.0576 (13) Å] from the basal plane towards the apex of the square pyramid. The intermolecular hydrogen‐bonding network results in a closely overlapped arrangement of the coordination basal plane and the thiazole ring of a neighboring molecule. 相似文献
2.
Simon J. Garden Marilza B. Corrêa Angelo C. Pinto James L. Wardell John N. Low Christopher Glidewell 《Acta Crystallographica. Section C, Structural Chemistry》2007,63(4):o234-o238
In ethyl N‐[2‐(hydroxyacetyl)phenyl]carbamate, C11H13NO4, all of the non‐H atoms lie on a mirror plane in the space group Pnma; the molecules are linked into simple chains by a single C—H⋯O hydrogen bond. The molecules of ethyl N‐[2‐(hydroxyacetyl)‐4‐iodophenyl]carbamate, C11H12INO4, are linked into sheets by a combination of O—H⋯I and C—H⋯O hydrogen bonds and a dipolar I⋯O contact. Ethyl N‐[2‐(hydroxyacetyl)‐4‐methylphenyl]carbamate, C12H15NO4, crystallizes with Z′ = 2 in the space group P; pairs of molecules are weakly linked by an O—H⋯O hydrogen bond and these aggregates are linked into chains by two independent aromatic π–π stacking interactions. 相似文献
3.
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
4.
Gilles Gasser Tokour Assoumatine Helen Stoeckli‐Evans 《Acta Crystallographica. Section C, Structural Chemistry》2007,63(4):o219-o222
The title compounds, C32H28N2O4, (I), and C32H28N2S4, (II), respectively, are tetrasubstituted pyrazines and both possess Ci symmetry. They differ only in the hetero atom (X) of the –CH2XPh side‐arm substituents: X = O in (I) and S in (II). Compound (I) has an overall S‐shape with a pair of adjacent –CH2OPh side arms alternately above and below the plane of the central pyrazine ring. The phenyl rings are inclined to one another by 12.63 (18)° and there is one intramolecular C—H⋯O hydrogen bond involving adjacent –CH2OPh side arms. In compound (II), adjacent –CH2SPh side arms point in opposite directions with respect to the pyrazine ring plane, with the phenyl rings inclined at 60.45 (8)°. Both structures have weak C—H⋯π intermolecular interactions. 相似文献
5.
Hümeyra Paaolu Ahmet Karada Fatma Tezcan Orhan Büyükgüngr 《Acta Crystallographica. Section C, Structural Chemistry》2005,61(2):m93-m94
In the novel transition metal isothiocyanate complex of N‐(2‐hydroxyethyl)ethylenediamine (hydet‐en) with copper, [Cu(NCS)2(C4H12N2O)], the Cu atom lies in a distorted square‐pyramidal environment, coordinated by four N atoms in the basal plane and an apical O atom. The hydet‐en ligand is N,N,O‐tridentate, in contrast to the disposition in previously studied complexes, while the isothiocyanate ions act as N‐atom donor ligands. The monomeric units are linked to one another by hydrogen bonds. 相似文献
6.
Fangfang Jian Ying Wang Lude Lu Xujie Yang Xin Wang Suchada Chantrapromma Hoong‐Kun Fun Ibrahim Abdul Razak 《Acta Crystallographica. Section C, Structural Chemistry》2001,57(6):714-716
The crystal structures of tris(2‐methylquinolin‐8‐olato‐N,O)iron(III), [Fe(C10H8NO)3], (I), and aquabis(2‐methylquinolin‐8‐olato‐N,O)copper(II), [Cu(C10H8NO)2(H2O)], (II), have been determined. Compound (I) has a distorted octahedral configuration, in which the central Fe atom is coordinated by three N atoms and three O atoms from three 2‐methylquinolin‐8‐olate ligands. The three Fe—O bond distances are in the range 1.934 (2)–1.947 (2) Å, while the three Fe—N bond distances range from 2.204 (2) to 2.405 (2) Å. In compound (II), the central CuII atom and H2O group lie on the crystallographic twofold axis and the coordination geometry of the CuII atom is close to trigonal bipyramidal, with the three O atoms in the basal plane and the two N atoms in apical positions. The Cu—N bond length is 2.018 (5) Å. The Cu—O bond length in the basal positions is 1.991 (4) Å, while the Cu—O bond length in the apical position is 2.273 (6) Å. There is an intermolecular OW—H?O hydrogen bond which links the molecules into a linear chain along the b axis. 相似文献
7.
F. Bentefrit P. Lemoine D. Nguyen‐Huy G. Morgant B. Viossat 《Acta Crystallographica. Section C, Structural Chemistry》2003,59(8):m331-m333
The asymmetric unit of the title compound, [Ni(C11H16ClN5)2]Cl2·C3H7NO, contains one monomeric nickel(II) complex cation, two Cl− anions and one dimethylformamide solvent molecule. The Ni atom is coordinated to each of two 1‐(p‐chlorophenyl)‐5‐isopropylbiguanide (proguanil) ligands via two N atoms. The complex exhibits a square‐planar coordination, with the Ni atom lying 0.021 (2) Å out of the basal plane. The crystal packing is characterized by several hydrogen bonds. 相似文献
8.
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
9.
Mamiko Odoko Nobuo Okabe 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(4):m136-m139
In the title compounds, [PtCl2(C3H10N2)], (I), [PdCl2(C3H10N2)], (II), and [Pt2Cl4(C10H26N4)], (III), each metal atom lies in a distorted cis‐square coordination geometry. Compounds (I) and (II) are isostructural, and each complex has a mirror plane through the metal atom and the middle C atom of the propane‐1,3‐diamine ligand. In (III), the binuclear complex [Pt2Cl4(spn)] has an inversion center at the middle of the 4,9‐diazadodecane‐1,12‐diamine (spermine, spn) ligand. The six‐membered chelate rings in (III) adopt a chair form, which is unsymmetrical and less flattened than those in (I) and (II). In all three crystal structures, there are intermolecular N—H⋯Cl hydrogen bonds. 相似文献
10.
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
11.
Gerrit G. Herman Werner Lippens Andr M. Goeminne Mathieu Steenland Norbert M. Blaton 《Acta Crystallographica. Section C, Structural Chemistry》2003,59(7):m294-m298
The crystal structures of (2,6‐dioxo‐1,4,7,11,14‐pentaazacycloheptadecanato)copper(II) tetrahydrate, [Cu(C12H23N5O2)]·4H2O, (I), (3,16‐dioxo‐1‐oxa‐4,8,11,15‐tetraazacycloheptadecanato)copper(II) pentahydrate, [Cu(C12H22N4O3)]·5H2O, (II), and (3,16‐dioxo‐1‐thia‐4,8,11,15‐tetraazacycloheptadecanato)copper(II) trihydrate, [Cu(C12H22N4O2S)]·3H2O, (III), are reported. The coordination geometry in each case is approximately square pyramidal with two amine groups and two deprotonated amide groups in the basal plane. The apical position is occupied by an amine group, an ether O atom or a thio S atom. Trigonal distortion increases in the sequence S < O < N as apical donor. The relation between the distortion in the basal plane of the complexes and the maxima in their electronic spectra is discussed. 相似文献
12.
Zhong‐Lu You 《Acta Crystallographica. Section C, Structural Chemistry》2005,61(7):m339-m341
The title complex, [Cu(C11H14BrN2O)(N3)]n, is an interesting azide‐bridged polynuclear copper(II) compound. The CuII atom is five‐coordinated in a square‐pyramidal configuration, with one O and two N atoms of one Schiff base and one terminal N atom of a bridging azide ligand defining the basal plane, and another terminal N atom of another bridging azide ligand occupying the axial position. The {4‐bromo‐2‐[2‐(dimethylamino)ethyliminomethyl]phenolato}copper(II) moieties are linked by the bridging azide ligands, forming polymeric chains running along the b axis. Adjacent chains are further linked by weak Br⋯Br interactions into a sheet. 相似文献
13.
Ahmet Karadag Hümeyra Paaoglu Gkhan Kata Orhan Büyükgüngr 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(11):m581-m583
The title compound, catena‐poly[[μ‐cyano‐1:2κ2C:N‐dicyano‐1κ2C‐trans‐bis[N‐(2‐hydroxyethyl)ethane‐1,2‐diamine‐2κ2N,N′]cadmium(II)nickel(II)]‐μ‐cyano‐1:2′κ2C:N], [CdNi(CN)4(C4H12N2O)2], consists of alternating square‐planar Ni(CN)4 fragments, formally dianionic, and Cd(hydet‐en)2 moieties [hydet‐en is N‐(2‐hydroxyethyl)ethylenediamine], with the two bridging cyanide ligands in a mutually trans disposition at the Ni atom and cis at the Cd atom. The resulting one‐dimensional zigzag chain structure has the Ni atom on an inversion center, while the distorted octahedron centered on the Cd atom lies on a twofold axis. The polymer chains are connected into undulating sheets by weak interchain N—H⋯N, N—H⋯O and O—H⋯N hydrogen bonds, which are also present between successive sheets. 相似文献
14.
Zhong‐Lu You Hai‐Liang Zhu 《Acta Crystallographica. Section C, Structural Chemistry》2005,61(9):m421-m423
The title complex, [Cu(C13H9Cl2N2O)(NCS)]n, is a novel thiocyanate‐bridged polynuclear copper(II) compound. The CuII atom is five‐coordinated in a square‐pyramidal configuration, with one O and two N atoms of one Schiff base ligand 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 axial position. The [2,4‐dichloro‐6‐(pyridin‐2‐ylmethyliminomethyl)phenolato]copper(II) moieties are linked by the bridging thiocyanate ligands, forming polymeric chains running along the a axis. 相似文献
15.
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
16.
Zhong‐Lu You 《Acta Crystallographica. Section C, Structural Chemistry》2005,61(9):m406-m408
The title complex, [Cu(C11H14BrN2O)(NCS)]n, is an interesting thiocyanate‐bridged polynuclear copper(II) compound, which crystallizes with two independent molecules in the asymmetric unit. Each CuII atom is five‐coordinate in a square‐pyramidal configuration, with one O and two N atoms of one Schiff base ligand 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 {4‐bromo‐2‐[2‐(dimethylamino)ethyliminomethyl]phenolato}copper(II) units are linked by the bridging thiocyanate ligands, forming polymeric chains running along the a axis. There are weak intermolecular C—H⋯O and C—H⋯S hydrogen bonds between the chains in the crystal structure. 相似文献
17.
Guangrong Zheng Sean Parkin Linda P. Dwoskin Peter A. Crooks 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(1):o9-o11
The crystal structures of the title compounds, 2α,4α‐dibenzyl‐3α‐tropanol (2α,4α‐dibenzyl‐8‐methyl‐8‐azabicyclo[3.2.1]octan‐3α‐ol), C22H27NO, (I), and 2α,4α‐dibenzyl‐3β‐tropanol (2α,4α‐dibenzyl‐8‐methyl‐8‐azabicyclo[3.2.1]octan‐3β‐ol), C22H27NO, (II), show that both compounds have a piperidine ring in a chair conformation and a pyrrolidine ring in an envelope conformation. Isomer (I) is asymmetric, the benzyl groups having different orientations, whereas isomer (II) is mirror symmetric, and the N and O atoms, the C atom attached to the hydroxy group, and the methyl C atom attached to the N atom lie on the mirror plane. In the crystal structures of both (I) and (II), the molecules are linked together by intermolecular O—H⋯N hydrogen bonds to form chains that run parallel to the a direction in (I) and parallel to b in (II). 相似文献
18.
Sujittra Youngme Jaturong Phatchimkun Samran Prabpai Chaveng Pakawatchai Palangpon Kongsaeree 《Acta Crystallographica. Section C, Structural Chemistry》2007,63(2):m45-m47
The two new title complexes, [Cu(N3)(dpyam)2]PF6 (dpyam is di‐2‐pyridylamine, C10H11N3), (I), and [Cu(N3)(dpyam)2]Cl·4H2O, (II), respectively, have been characterized by single‐crystal X‐ray diffraction. Both complexes display a distorted square‐pyramidal geometry. Each Cu atom is coordinated in the basal plane by three dpyam N atoms and one azide N atom in equatorial positions, and by another N atom from the dpyam group in the apical position. In complex (I), the one‐dimensional supramolecular architecture is assembled via hydrogen‐bonding interactions between the amine N atom and terminal azide N atoms and the F atoms of the PF6− anion. For complex (II), hydrogen‐bonding interactions between the amine N atom, the Cl− anion and water O atoms result in a two‐dimensional lattice. 相似文献
19.
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
20.
Mao‐Lin Hu Peng Gao Seik Weng Ng 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(6):m323-m324
The Cd atom in the polymeric title compound, [Cd(C14H8O5)(H2O)]n, is linked to four carboxyl O atoms and a water molecule in a five‐coordinate coordination polyhedron that is midway between a square pyramid and a trigonal bipyramid. The Cd atom and the water molecules both lie on the same twofold axis and the central O atom of the 4,4′‐oxydibenzoate moiety lies on another twofold axis. Covalent Cd—O bonds lead to the formation of a layer architecture perpendicular to the twofold axis, the layers being held together by hydrogen bonds in the third direction. 相似文献