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1.
Shu‐Mei Chen Can‐Zhong Lu Ya‐Qin Yu Quan‐Zheng Zhang Xiang He 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(11):m549-m550
The title compound, [NaLaMo8O26(C3H7NO)7]n, contains infinite chains of [Mo8O26]4− units supporting dimethylformamide‐coordinated LaIII cations and linked by Na+ cations. The lanthanum center adopts a nine‐coordinate geometry and the Na atom is sandwiched between two β‐[Mo8O26]4− units. 相似文献
2.
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
3.
Rafal Kruszynski Tadeusz J. Bartczak 《Acta Crystallographica. Section C, Structural Chemistry》2005,61(9):m439-m441
The title compound, [Sn4(CH3)8(C13H8Cl2NO2)2(C2H5O)2O2], is a centrosymmetric dimer, with three linearly fused four‐membered Sn—O—Sn—O rings. The coordination polyhedron of the Sn atom bonded to the carboxylate can be described as trigonal–bipyramidal distorted toward square‐pyramidal. That of the second Sn atom is similar, but the distortion towards square‐pyramidal geometry is greater. The Sn—O and Sn—C distances are 2.020 (2)–2.226 (2) and 2.096 (4)–2.114 (4) Å, respectively. The benzene rings of the 2‐[(2,3‐dichlorophenyl)amino]benzoate ligand subtend an angle of 50.49 (17)°; the conformation of the ligand is stabilized by intramolecular N—H⋯Cl and N—H⋯O hydrogen bonds. The structure is assembled viaπ–π stacking interactions to form chains parallel to [10]. 相似文献
4.
Hong‐Yu Chen Qi Fang Gang Xue Wen‐Tao Yu 《Acta Crystallographica. Section C, Structural Chemistry》2005,61(12):m535-m537
In the title compound, {[K2Ni(C5O5)2(H2O)2]·4H2O}n, the Ni atom lies on an inversion centre. Two inversion‐related croconate [4,5‐dihydroxy‐4‐cyclopentene‐1,2,3‐trionate(2−)] ligands and an NiII ion form a near‐planar symmetrical [Ni(C5O5)2]2− moiety. The near‐square coordination centre of the moiety is then extended to an octahedral core by vertically bonding two water molecules in the [Ni(C5O5)2(H2O)2]2− coordination anion. The crystal structure is characterized by a three‐dimensional network, involving strong K⋯O⋯K binding, K⋯O—Ni binding and hydrogen bonding. 相似文献
5.
Poly[[μ2‐aqua‐bis[(1,10‐phenanthroline)nickel(II)]]‐di‐μ2,μ4‐5‐nitro‐1,3‐benzenedicarboxylato]
Hong‐Yin He Yi‐Li Zhou Long‐Guan Zhu 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(11):m569-m571
The reaction of Ni(CH3COO)2·4H2O, 5‐nitro‐1,3‐benzenedicarboxylic acid (H2nmbdc), 1,10‐phenanthroline and water under hydrothermal conditions yields the first reported two‐dimensional nickel coordination polymer with water‐ and carboxylate‐bridged dimeric units, viz. [Ni2(C8H3NO6)2(C12H8N2)2(H2O)]n. The coordination polyhedron of the NiII ion in the title structure is an octahedron defined by an N2O4 donor set. The water molecule is positioned on a mirror plane and the 5‐nitro‐1,3‐benzenedicarboxylate group is located on a twofold axis. Two types of nmbdc2− coordination mode are observed: one is a bis‐monodentate mode, μ2‐nmbdc2−, and the other is a bis‐bridging mode, μ4‐nmbdc2−. The dimeric unit in the title compound is similar to the structural moiety in urease. In the two‐dimensional framework in the title compound, strong stacking interactions between benzene rings (μ2‐nmbdc2− and μ4‐nmbdc2−) and 1,10‐phenanthroline ligands are observed. 相似文献
6.
M. T. Duarte V. Gama S. Rabaa I. C. Santos 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(7):m278-m280
The title compound, [Fe(C10H15)2][Ni(C3OS4)2]·C4H8O or [Fe(Cp*)2][Ni(dmio)2]·THF, where [Fe(Cp*)2]+ is the decamethylferrocenium cation, dmio is the 2‐oxo‐1,3‐dithiole‐4,5‐dithiolate dianion and THF is tetrahydrofuran, crystallizes with two independent half‐anion units [one Ni atom is at the centre of symmetry (, , 0) and the other is at the centre of symmetry (, 0, )], one cation unit (located in a general position) and one THF solvent molecule in the asymmetric unit. The crystal structure consists of two‐dimensional layers composed of parallel mixed chains, where pairs of cations alternate with single anions. These layers are separated by sheets of anions and THF molecules. 相似文献
7.
Guo‐Qing Bian Takayoshi Kuroda‐Sowa Hisashi Konaka Masahiko Maekawa Megumu Munakata 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(7):m338-m340
The title compound, [Mn2(μ‐O)(C6H3NO3)2(C5H5N)4]·H2O, was isolated from the reaction of 2,6‐pyridinedicarboxylic acid with [Mn12O12(CH3COO)16(H2O)4] in pyridine. The dimanganese complex has twofold symmetry; the MnIII atoms are bridged by one oxo and two amidate ligands and show compressed octahedral Jahn–Teller distortion. The molecular packing comprises a three‐dimensional structure constructed by means of extensive intermolecular interactions, including three kinds of hydrogen bonds and π–π interactions. 相似文献
8.
Claude Villiers Pierre Thury Michel Ephritikhine 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(6):m243-m245
In the title compound, (1,4,7,10,13,16‐hexaoxacyclooctadecane‐1κ6O)‐μ‐oxo‐1:2κ2O:O‐hexakis(tetrahydroborato)‐1κ3H;2κ2H;2κ2H;2κ3H;2κ3H;2κ3H‐diuranium(IV), [U2(BH4)6O(C12H24O6)], one of the U atoms (U1), located at the centre of the crown ether moiety, is bound to the six ether O atoms, and also to a tridentate tetrahydroborate group and a μ‐oxo atom in axial positions. The other U atom (U2) is bound to the same oxo group and to five tetrahydroborate moieties, three of them tridentate and the other two bidentate. The two metal centres are bridged by the μ‐oxo atom in an asymmetric fashion, thus giving the species (18‐crown‐6)(κ3‐BH4)U=(μ‐O)—U(κ3‐BH4)3(κ2‐BH4)2, in which the U1=O and U2—O bond lengths to the μ‐O atom [1.979 (5) and 2.187 (5) Å, respectively] are indicative of the presence of positive and negative partial charges on U1 and U2, respectively. 相似文献
9.
Mrcia R. Siquiera Janaina T. Facco Ernesto S. Lang Fabiane Lorenzini Mara R. Rizzatti Javier Ellena Robert A. Burrow 《Acta Crystallographica. Section C, Structural Chemistry》2005,61(4):m161-m164
The first structurally characterized alkali metal phosphonate, the title compound, [K2(C6H6O3P)2(C3H7NO)(H2O)]n, has a complex structure, with layers parallel to the crystallographic bc plane consisting of two crystallographically independent K atoms sandwiched between the three types of ligands present in the structure, viz. water molecules, dimethylformamide molecules and two crystallographically independent phenylphosphonate ligands. Six O atoms coordinate to one K atom and seven to the other. The interlayer distance is 15.327 (4) Å. The K—O distances are in the range 2.739 (2)–2.932 (2) Å for the seven‐coordinate K atom and 2.650 (2)–2.821 (2) Å for the six‐coordinate K atom. 相似文献
10.
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
11.
Feng Geng Guo‐Hua Han Bi‐Zhou Lin 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(8):m355-m357
The crystal structure of the title compound, (C4H15N3)2[Mo5O15(HPO4)2]·4H2O, is made up of [Mo5O15(HPO4)2]4− clusters, iminodiethylenediammonium cations and solvent water molecules. The [Mo5O15(HPO4)2]4− cluster, with approximate C2 symmetry, can be considered as a ring formed by five distorted edge‐ and corner‐sharing MoO6 octahedra, capped on both poles by a hydrophosphate tetrahedron. There exist N—H⋯O, O—H⋯N and C—H⋯O hydrogen bonds between the organic ammonium groups and the clusters, with interatomic N⋯O distances ranging from 2.675 (3) to 2.999 (3) Å, and C⋯O distances ranging from 3.139 (5) to 3.460 (5) Å. 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.
Graeme J. Gainsford Tim Kemmitt 《Acta Crystallographica. Section C, Structural Chemistry》2005,61(3):m136-m138
In the title compound, [Na4(C8H16BO4)4(C4H10O2)]n, there are two coordination types for the four independent Na+ cations: two Na+ cations bond to six diolate O atoms [Na—O = 2.305 (2)–2.609 (2) Å], while the other two are five‐coordinate via one 1,4‐butanediol [2.289 (2) and 2.349 (3) Å] and four diolate O atoms [2.295 (2)–2.408 (2) Å]. Corresponding to this, there are three‐ and four‐coordinate diolate O atoms, the latter bridging Na atoms. The 1,4‐butanediol molecules lie on inversion centres. The boron stereochemistry shows minor local perturbations from its usual tetrahedral state [B—O = 1.457 (4)–1.503 (4) Å]. The resulting polymer packs as sheets parallel to the (10) plane crosslinked by the butanediol molecules. The structure was solved using data from a multiple crystal. 相似文献
14.
Ying‐Hong Lu Hoong‐Kun Fun Suchada Chantrapromma Ibrahim Abdul Razak Zhen Shen Jing‐Lin Zuo Xiao‐Zeng You 《Acta Crystallographica. Section C, Structural Chemistry》2001,57(8):911-913
The title dinuclear di‐μ‐oxo‐bis[(1,4,8,11‐tetraazacyclotetradecane‐κ4N)manganese(III,IV)] diperchlorate nitrate complex, [Mn2O2(C10H24N4)2](ClO4)2(NO3) or [(cyclam)MnO]2(ClO4)2(NO3), was self‐assembled by the reaction of Mn2+ with 1,4,8,11‐tetraazacyclotetradecane in aqueous media. The structure of this compound consists of a centrosymmetric binuclear [(cyclam)MnO]3+ unit, two perchlorate anions and one nitrate anion. While the low‐temperature electron paramagnetic resonance spectra show a typical 16‐line signal for a di‐μ‐oxo MnIII/MnIV dimer, the magnetic susceptibility studies also confirm a characteristic antiferromagnetic coupling between the electronic spins of the MnIV and MnIII ions. 相似文献
15.
Cassandra J. Martin David C. R. Hockless Max R. Taylor Lisandra L. Martin 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(12):e549-e549
The previously unknown title compound, tetra‐μ‐acetato‐1:2κ2O;1:2κ2O:O′;2:3κ2O;2:3κ2O:O′‐diaqua‐1κO,3κO‐bis(μ‐2‐{[N‐ethyl‐N‐(2‐hydroxy‐5‐methylbenzyl)amino]methyl}‐1‐methyl‐1H‐benzimidazole)‐1κ3N3,N,O:2κO;3κ3N3,N,O:2κO‐trinickel(II) tetrahydrate, [Ni3(C18H22N3O)2(C2H3O2)4(H2O)2]·4H2O, (I), is a centrosymmetric linear trinuclear nickel(II) complex, where the Ni atoms are in an octahedral coordination and the ligand heteroatoms act so as to model amino acid residues. 相似文献
16.
Guang Liu Jian Liu Yong‐Ge Wei Qun Liu Shi‐Wei Zhang 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(7):822-823
In the title compound, [Mo2O4(C2H4NO2)2(C2H5NO2)], two Mo atoms sit in the same distorted pentagonal bipyramid coordination environment. There are four ligand types: oxo‐O, μ2‐O, μ2‐glycine and chelate glycine. There is an Mo—Mo bond between the two Mo atoms [2.552 (1) Å]. All amino groups participate in hydrogen bonding with O atoms of other molecules, thus connecting the molecules into a three‐dimensional structure. 相似文献
17.
Zhao‐Xun Lian Ping Liu Jia‐Min Zhang Tian‐Xi Wang Tian‐Jun Lou 《Acta Crystallographica. Section C, Structural Chemistry》2007,63(11):m525-m527
In the title compound, [V4O8(SeO3)2(C10H8N2)4], there are two distinct vanadium coordination environments. Alternating corner‐shared VO4N2 octahedra and SeO3 pyramids result in eight‐membered centrosymmetric V2Se2O4 rings. In addition, pairs of V centres form centrosymmetric V2O6N4 clusters via edge‐sharing. These two kinds of secondary building units are linked in an ABABAB fashion to give an infinite chain whose nature is unprecedented in Se–V–O systems. 相似文献
18.
M. John Plater Mark R. St J. Foreman R. Alan Howie 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(10):m487-m489
The structure of the title compound, [Co4(C9H3O6)2(OH)2(C8H6N4)(H2O)2]·2H2O, contains three separate species, namely the μ5‐bridging C9H3O63? anion, the doubly chelating and therefore μ2‐bridging C8H6N4 ligand (bipyrimidine, BPM), and the dihydrated diaquadihydroxy tetranuclear cationic cluster, [Co4(OH?)2(H2O)2]6+·2H2O, which lies on a crystallographic centre of symmetry, as does the BPM ligand with, in this case, the centre of symmetry coincident with the midpoint of the C—C bond joining the six‐membered rings. Within the cation cluster, the Co atoms of one pair are five‐coordinate and those of the other six‐coordinate. 相似文献
19.
Ying‐Quan Zou Xia Li Yan Li Huai‐Ming Hu 《Acta Crystallographica. Section C, Structural Chemistry》2001,57(9):1048-1050
The title compound, tetrakis(μ‐2,3‐dimethoxybenzoato)‐κ4O:O′;κ6O,O′:O′‐bis[(2,2′‐bipyridine‐N,N′)(2,3‐dimethoxybenzoato‐O,O′)lanthanum(III)], [La2(2,3‐DMOBA)6(2,2′‐bpy)2], where 2,3‐DMOBA is 2,3‐dimethoxybenzoate (C9H9O4) and 2,2′‐bpy is 2,2′‐bipyridine (C10H8N2), is a dimer with a centre of inversion between the La atoms bridged by four carboxylate ligands. The central La atom is ennea‐coordinated and has a distorted monocapped square‐antiprism geometry. 相似文献
20.
Anthony L. Spek Johannes Canisius Hans Preut Norbert Krause 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(9):1065-1066
The title compound, di‐μ‐chloro‐bis{[(2,3,4‐η)‐ethyl 6,6‐dimethyl‐5‐oxohept‐2‐enoato]palladium(II)}, [Pd2Cl2(C11H17O3)2], is a binuclear chloro‐bridged palladium allyl complex that was obtained serendipitously From the reaction of 6,6‐dimethyl‐2‐hepten‐4‐ynoate with Na2PdCl4 in water‐containing alcohol. The allyl group is substituted with an ester and a tert‐butylcarboxy group. The dimeric molecules link via C—H?O contacts into a two‐dimensional network parallel to the bc plane. 相似文献