共查询到20条相似文献,搜索用时 935 毫秒
1.
The title complex, [Ag4(C7H5O3)2(C8H6N2)4(C7H6O3)4], lies about an inversion centre and has a unique tetranuclear structure consisting of four AgI atoms bridged by four N atoms from two 1,8‐naphthyridine (napy) ligands to form an N:N′‐bridge and four O atoms from two salicylate (SA) ligands to form an O:O′‐bridge. The Ag atoms have distorted octahedral coordination geometry. The centrosymmetric Ag4 ring has Ag—Ag separations of 2.772 (2) and 3.127 (2) Å, and Ag—Ag—Ag angles of 107.70 (4) and 72.30 (4)°. All SA hydroxy groups take part in intramolecular O—H⋯O hydrogen bonding. In the crystal packing, the napy rings are oriented parallel and overlap one another. These π–π interactions, together with weak intermolecular C—H⋯O contacts, stabilize the crystal structure. 相似文献
2.
Dana M. Hatch William F. Wacholtz Joel T. Mague 《Acta Crystallographica. Section C, Structural Chemistry》2003,59(11):m452-m453
The title compound, bis(μ‐1,2‐benzenethiolato)‐1:2κ3S,S′:S′;2:1κ3S,S′:S′‐bis[(2,2′‐bipyridine‐κ2N,N′)zinc(II)], [Zn2(μ‐C6H4S2)2(C10H8N2)2], crystallizes with the dinuclear molecule located on a center of symmetry. The coordination geometry about the Zn atom is a modestly distorted trigonal bipyramid, with the axial ligating atoms at an angle of 170.81 (4)° and the angles in the equatorial plane in the range 112.94 (4)–129.95 (4)°. Weak π‐stacking interactions between bipyridine ligands on adjacent molecules [interplanar spacing = 3.315 (3) Å] and a possible weak intermolecular C—H⋯S hydrogen bond (H⋯S = 2.84 Å) are seen in the crystal. 相似文献
3.
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
4.
Ludmila S. Ivashkevich Alexander S. Lyakhov Pavel N. Gaponik Michail M. Degtyarik Oleg A. Ivashkevich Sergey I. Tiutiunnikov Vadim V. Efimov 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(12):m607-m609
The crystal structure of the polymeric title complex, [CuCl2(C3H6N4)]n, has been solved from laboratory X‐ray powder diffraction data collected at room temperature. The structural model obtained was refined with the Rietveld method using geometric soft restraints. There are two Cu atoms, two Cl atoms and one 1,5‐dimethyltetrazole ligand in the asymmetric unit. Both Cu atoms lie on inversion centres and adopt essentially elongated octahedral coordination. Within the octahedra, the elongated axial positions are occupied by Cl atoms, while two Cl and two N atoms (N3 and N4 of the tetrazole ring) are in equatorial sites. Each Cl atom forms an asymmetric bridge between neighbouring Cu atoms, which are also bridged via the N3—N4 bond of the tetrazole ring. These bridges result in the formation of polymeric chains, running along the a axis, with weak C—H⋯Cl hydrogen bonds crosslinking the chains. 相似文献
5.
Nobuyuki Matsushita 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(2):m33-m36
The title compound, {[PtIIPtIVI2(C2H8N2)4](HPO4)(H2PO4)I·3H2O}n, has a chain structure composed of square‐planar [Pt(en)2]2+ and elongated octahedral trans‐[PtI2(en)2]2+ cations (en is ethylenediamine) stacked alternately along the c axis and bridged by the I atoms; a three‐dimensionally valence‐ordered system exists with respect to the Pt sites. The title compound also has a unique cyclic tetramer structure composed of two hydrogenphosphate and two dihydrogenphosphate ions connected by strong hydrogen bonds [O⋯O = 2.522 (10), 2.567 (10) and 2.569 (11) Å]. The Pt and I atoms form a zigzag ⋯I—PtIV—I⋯PtII⋯ chain, with PtIV—I bond distances of 2.6997 (7) and 2.6921 (7) Å, interatomic PtII⋯I distances of 3.3239 (8) and 3.2902 (7) Å, and PtIV—I⋯PtII angles of 154.52 (3) and 163.64 (3)°. The structural parameters indicating the mixed‐valence state of platinum, expressed by δ = (PtIV—I)/(PtII—I), are 0.812 and 0.818 for the two independent I atoms. 相似文献
6.
Wen‐Ge Li You‐Cai Zhang Zuo‐Wei Wang Yi‐Zhi Li He‐Gen Zheng 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(4):m159-m160
The title nest‐shaped cluster, [Cu3WIOS3(C10H8N2)2], has been synthesized by the reaction of (NH4)2[WOS3], CuI and 2,2′‐bipyridine (bipy) in dimethylformamide under a purified nitrogen atmosphere. The cluster has a neutral skeleton containing the bipy ligands, and the central W atom is tetrahedrally coordinated by three S atoms and one O atom. The three Cu atoms are divided into two different kinds. Two Cu atoms adopt distorted tetrahedral geometry, with each Cu atom coordinated by two S atoms and the two N atoms of a bipy ligand. The other Cu atom adopts a trigonal mode surrounded by two S atoms and one I atom. 相似文献
7.
Sung‐Nak Choi Sang‐Yub Kim Hae‐Wook Ryu Yong‐Min Lee 《Acta Crystallographica. Section C, Structural Chemistry》2005,61(12):m504-m506
In the title compound, [HgCl2(C15H26N2)], the chiral alkaloid (6R,7S,8S,14S)‐(−)‐l ‐sparteine acts as a bidentate ligand, with two Cl− ligands occupying the remaining coordination sites, producing a distorted tetrahedron. The N—Hg—N plane is twisted by 81.1 (2)° from the Cl—Hg—Cl plane. The mid‐point of the N⋯N line does not lie exactly on the Cl—Hg—Cl plane but is tilted towards one of the N atoms by 0.346 Å. Similarly, the mid‐point of the Cl⋯Cl line is tilted toward one of the Cl atoms by 0.163 Å. The packing structure shows that the complex is stabilized by two interatomic Cl⋯H contacts involving both Cl atoms and the methylene or methine H atoms of the (−)‐sparteine ligand. 相似文献
8.
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
9.
In catena‐poly[[(di‐2‐pyridylamine‐κ2N,N′)silver(I)]‐μ‐nicotinato‐κ2N:O], [Ag(C6H4NO2)(C10H9N3)]n, the AgI atom is tetracoordinated by two N atoms from the di‐2‐pyridylamine (BPA) ligand [Ag—N = 2.3785 (18) and 2.3298 (18) Å] and by one N atom and one carboxylate O atom from nicotinate ligands [Ag—N = 2.2827 (15) Å and Ag—O = 2.3636 (14) Å]. Bridging by nicotinate N and O atoms generates a polymeric chain structure, which extends along [100]. The carboxyl O atom not bonded to the Ag atom takes part in an intrachain C—H⋯O hydrogen bond, further stabilizing the chain. Pairs of chains are linked by N—H⋯O hydrogen bonds to generate ribbons. There are no π–π interactions in this complex. In catena‐poly[[(di‐2‐pyridylamine‐κ2N,N′)silver(I)]‐μ‐2,6‐dihydroxybenzoato‐κ2O1:O2], [Ag(C7H5O4)(C10H9N3)]n, the AgI atom has a distorted tetrahedral coordination, with three strong bonds to two pyridine N atoms from the BPA ligand [Ag—N = 2.286 (5) and 2.320 (5) Å] and to one carboxylate O atom from the 2,6‐dihydroxybenzoate ligand [Ag—O = 2.222 (4) Å]; the fourth, weaker, Ag‐atom coordination is to one of the phenol O atoms [Ag⋯O = 2.703 (4) Å] of an adjacent moiety, and this interaction generates a polymeric chain along [100]. Pairs of chains are linked about inversion centers by N—H⋯O hydrogen bonds to form ribbons, within which there are π–π interactions. The ribbons are linked about inversion centers by pairs of C—H⋯O hydrogen bonds and additional π–π interactions between inversion‐related pairs of 2,6‐dihydroxybenzoate ligands to generate a three‐dimensional network. 相似文献
10.
Liliana V. Lukashuk Andrey B. Lysenko Eduard B. Rusanov Alexander N. Chernega Konstantin V. Domasevitch 《Acta Crystallographica. Section C, Structural Chemistry》2007,63(4):m140-m143
In the isostructural title complexes, [M(C9H6N3O2)2(H2O)2] [M = CoII, (I), CdII, (II), and CuII, (III); the metal centres reside on a twofold axis in the space group C2/c for (I) and (II)], the metal centres are surrounded by four O atoms from two O,O′‐bidentate carboxylate groups and by two trans‐coordinated aqua ligands, forming a distorted octahedral environment. The molecules possess four hydrogen‐bond donor (two aqua ligands) and four hydrogen‐bond acceptor sites (two triazole groups), and aggregate by self‐association, forming two‐dimensional hydrogen‐bonded frameworks [via O—H⋯N interactions; O⋯N = 2.749 (3)–2.872 (3) Å]. The layers are parallel and are tightly packed with short interlayer distances of 4.93, 4.95 and 5.01 Å for (I), (II) and (III), respectively. 相似文献
11.
Jin‐Yu Sun Zhen Zhao Yong‐Chao Ma Miao‐Li Zhu Xiang‐Dong Zhang 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(1):m4-m6
The crystal structure of the title compound, μ‐2‐hydroxybutanedioato‐1κ2O4,O4′:2κ3O1,O2,O4‐nitrato‐2κO‐tris(1,10‐phenanthroline)‐1κ4N,N′;2κ2N,N′‐dicopper(II) nitrate tetrahydrate, [Cu2(C4H3O5)(NO3)(C12H8N2)3](NO3)·4H2O, contains an unsymmetrical dinuclear copper complex with Cu(phen)2 and Cu(phen)(NO3) moieties (phen is 1,10‐phenanthroline) bridged by a malate (2‐hydroxybutanedioate) ligand, which acts as a double‐bridging and tetradentate ligand. As a result of this double‐bridging action, especially the direct coordination of the O atom of one carboxylate group of malate to the two Cu atoms, the Cu⋯Cu distance is only 4.199 (1) Å and the two phen planes are roughly parallel [the shortest interplanar distance is 3.28 (1) Å], exhibiting an obvious intramolecular π–π stacking interaction. 相似文献
12.
Jaromír Marek Jn Van
o Oga vajlenov 《Acta Crystallographica. Section C, Structural Chemistry》2003,59(12):m509-m511
The title polymeric compound, catena‐poly[dipotassium [bis[μ‐N‐salicylidene‐β‐alaninato(2−)]‐κ4O,N,O′:O′′;κ4O′′:O,N,O′‐dicopper(II)]‐di‐μ‐isothiocyanato‐κ2N:S;κ2S:N], {K[Cu(NCS)(C10H9NO3)]}n, consists of [isothiocyanato(N‐salicylidene‐β‐alaninato)copper(II)]− anions connected through the two three‐atom thiocyanate (μ‐NCS) and the two anti,anti‐μ‐carboxylate bridges into infinite one‐dimensional polymeric anions, with coulombically interacting K+ counter‐ions with coordination number 7 constrained between the chains. The CuII atoms adopt a distorted tetragonal–bipyramidal coordination, with three donor atoms of the tridentate Schiff base and one N atom of the bridging μ‐NCS ligand in the basal plane. The first axial position is occupied by a thiocyanate S atom of a symmetry‐related μ‐NCS ligand at an apical distance of 2.9770 (8) Å, and the second position is occupied by an O atom of a bridging carboxylate group from an adjacent coordination unit at a distance of 2.639 (2) Å. 相似文献
13.
Uwe‐Christoph Knig Michael Berkei Claudia Hirsch Hans Preut Terence Nigel Mitchell 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(10):e450-e451
The synthesis and the X‐ray structural analysis of the title compound, μ‐chloro‐1:2κ2Cl‐trichloro‐1κCl,2κ2Cl‐tetramethyl‐1κ2C,2κ2C‐(N‐methylpyrrolidin‐2‐one)‐1κO‐ditin(IV), [Sn2Cl4(CH3)4(C5H9NO)], are described. The title compound is found to exhibit a distorted trigonal–bipyramidal geometry at both SnIV atoms. The Sn—Cl—Sn angle involving the bridging chlorine ligand is 135.56 (5)°, with the Sn—Cl bond lengths being 2.5704 (13) and 3.1159 (13) Å. 相似文献
14.
Dmytro S. Nesterov Volodymyr N. Kokozay Brian W. Skelton 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(6):m246-m248
The crystal structure of the title compound, triacetato‐1κO;3κ4O,O′‐(2,2′‐iminodiethanol)‐1κ3O,N,O′‐bis(μ‐2,2′‐iminodiethanolato)‐1κ2O:2κ6O,N,O′:3κ2O′‐cobalt(III)copper(II)zinc(II), [CoCuZn(C4H9NO2)2(C2H3O2)3(C4H11NO2)], shows a molecule with a triangular three‐metal core. The metal sites were refined with full occupancies, but the possibility that the Zn and Cu positions are actually mixed Cu/Zn sites cannot be excluded. The intermetallic Cu⋯Co and Co⋯Zn distances are 2.924 (3) and 2.906 (3) Å, respectively. The neutral molecules are held together by N—H⋯O hydrogen bonds involving amine groups from the 2,2′‐iminodiethanol ligands and acetate groups to build two‐dimensional layers. 相似文献
15.
Yi‐Cheng Shen Zhao‐Ji Li Ye‐Yan Qin Yuan‐Gen Yao 《Acta Crystallographica. Section C, Structural Chemistry》2007,63(4):m135-m136
The title compound, [Zn(SO4)(C12H10N2)]n, features a layered structure based on [Zn(SO4)]n spirals linked by 1,2‐di‐4‐pyridylethylene (bpe) ligands, with the tetrahedral Zn and S atoms lying on twofold axes. The bpe ligands are centrosymmetric. The layers are linked by weak C—H⋯O interactions. 相似文献
16.
ubica Tri
íkov Ivan Poto
k Christoph Wagner 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(4):m246-m248
The structure of the title compound, [Cu(C6H7N)2{Ag(CN)2}2]n, is made up of neutral zigzag chains of [–NC–Ag–CN–Cu(4‐Mepy)2{Ag(CN)2}–NC–Ag–CN–] (4‐Mepy is 4‐methylpyridine). Neighbouring chains are linked by weak argentophilic interactions, with Ag?Ag distances of 3.2322 (12) Å. The Cu atom, which lies on a twofold rotation axis, is pentacoordinated by one monodentate Ag(CN)2? anion [Cu—N 1.985 (3) Å], the atoms of which lie on the same rotation axis, and by bridging dicyanoargentate anions [2 × Cu—N 2.0827 (19) Å], with Ag atoms on inversion centres. The coordination polyhedron is completed by two 4‐Mepy molecules [2 × Cu—N 2.038 (2) Å], which occupy the axial positions of a distorted trigonal bipyramid. 相似文献
17.
Li‐Li Kong Shan Gao Li‐Hua Huo Hui Zhao 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(12):m632-m634
The crystal structure of the title complex, {[Cu3(C2H3O2)2(OH)2(H2O)4](C10H6O6S2)}n, is built of infinite polymeric cationic {[Cu3(C2H3O2)2(H2O)4(OH)2]2+}n chains stretching along the a axis, with naphthalene‐1,5‐disulfonate (1,5‐nds) anions in between. One independent CuII cation and the 1,5‐nds anion occupy special positions on crystallographic inversion centres. Each CuII cation has an octahedral coordination environment formed by two carboxyl O atoms, two hydroxo O atoms and two water molecules. The carboxylate and hydroxo groups perform a bridging function, linking adjacent Cu atoms in the chain, with a shortest Cu⋯Cu distance of 2.990 (3) Å. The chains are further linked into a three‐dimensional supramolecular framework via hydrogen‐bonding interactions involving the sulfonate groups of the 1,5‐nds dianions. 相似文献
18.
Tim Kemmitt Graeme J. Gainsford Hana Robson‐Marsden 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(5):m310-m312
The title compound, bis(2,2′‐methyliminodiethanolato)‐1κ3O,N,O′;3κ3O,N,O′‐di‐μ3‐propane‐1,3‐diolato‐1:2:3κ8O:O,O′:O′‐μ‐propane‐1,3‐diolato‐1:3κ2O:O′‐propane‐1,3‐diolato‐2κ2O,O′‐trititanium(IV), [Ti3(C5H11NO2)2(C3H6O2)4], has four 1,3‐propanediolate ligands binding in three different modes. Two ligands chelate adjacent Ti atoms with normal μ3‐O bridges, giving typical edge‐sharing of the Ti distorted octahedra, one chelating to the central Ti atom with no μ‐bridging, and the other spanning the cluster, binding only to the outermost Ti atoms. The two methyliminodiethanolate ligands each coordinate to the outer Ti atoms via their N and two O atoms. The Ti—O bond lengths range, in a self‐consistent fashion, from 1.816 (2) to 2.082 (2) Å, while the average Ti—N distance is 2.391 (3) Å. 相似文献
19.
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
20.
Zhong‐Lu You Hai‐Liang Zhu 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(11):m567-m568
The title complex, [Ag2(C7H5O2)2(C18H18F2N2)]n, is a dinuclear silver(I) compound with one inversion centre between pairs of Ag atoms and another at the mid‐point of the central C—C bond in the butane‐1,4‐diamine moiety. Each of the smallest repeat units consists of two silver(I) cations, two benzoate anions and one N,N′‐bis(2‐fluorobenzylidene)butane‐1,4‐diamine Schiff base ligand. Each AgI ion is three‐coordinated in a trigonal configuration by two O atoms from two benzoate anions and one N atom from a Schiff base ligand. The di‐μ‐benzoato‐disilver(I) moieties are linked by the bridging Schiff base ligand, giving zigzag polymeric chains with an [–Ag⋯Ag—N—C—C—C—C—N–]n backbone running along the b axis. 相似文献