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1.
Qiong‐Hua Jin Xia Li Ying‐Quan Zou Kai‐Bei Yu 《Acta Crystallographica. Section C, Structural Chemistry》2001,57(6):676-677
Each Eu3+ ion in the title compound, catena‐poly[europium(III)‐tri‐μ‐4‐methylbenzoato‐O:O,O′;O:O,O′;O,O′:O′], {[Eu(C8H7O2)3]3}n, is coordinated by nine O atoms, and three Eu atoms form a trimeric unit. These trimeric units are linked by bridging–chelating carboxylates to form an infinite one‐dimensional polymer chain. 相似文献
2.
John Bacsa Desmond Eve Kim R. Dunbar 《Acta Crystallographica. Section C, Structural Chemistry》2005,61(1):m58-m60
Single crystals of the title compound, [Co(C2O4)(H2O)2]n, have been prepared by hydrothermal methods and characterized by X‐ray diffraction analysis. The crystal structure consists of infinite one‐dimensional chains of diaquacobalt(II) units bridged by oxalate groups. These chains lie on twofold symmetry axes parallel to the b axis, and the [Co(C2O4)]n system is nearly planar within experimental error. The cobalt(II) coordination polyhedra are irregular octahedra, with oxalate O atoms at the equatorial positions and water molecules at the axial positions. The chains are linked by hydrogen bonds via the water molecules. 相似文献
3.
Christian Nther Jan Greve 《Acta Crystallographica. Section C, Structural Chemistry》2001,57(4):377-378
In the structure of the title compound, [CuBr(C6H8N2)]n, each Cu2+ cation is surrounded by two 2,3‐dimethylpyrazine ligands and two Br? anions in a distorted tetrahedral arrangement. The Cu2+ cations and Br? anions form (Cu2Br2)2 rhomboid dimers located around a centre of inversion. The 2,3‐dimethylpyrazine ligands connect the Cu2+ cations in the dimers into sheets parallel to (010). 相似文献
4.
Zhao‐Di Liu Ying Zou Min‐Yu Tan Hai‐Liang Zhu 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(9):m447-m448
The title compound, {(C6H14N2)[Ag(NCS)3]}n, is a polymeric silver(I) complex. The AgI atom is hexacoordinated by the S atoms of six thiocyanate anions, with each thiocyanate S atom acting in a bridging mode to link the Ag atoms together. The unique AgI atom lies at a cell origin and has crystallographically imposed symmetry. The diazonia[2.2.2]octane molecule lies about a site with imposed symmetry with the unique N atom on a threefold axis. The S and N atoms of the thiocyanate ligands sit on a mirror plane and a threefold axis, respectively. The crystal structure consists of one‐dimensional chains, which are stabilized by N—H⋯N hydrogen bonds to form a three‐dimensional network. 相似文献
5.
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
6.
Yan Wang Yi‐Zhi Li Qiong‐Hua Jin He‐Gen Zheng Zheng Hu Xin‐Quan Xin 《Acta Crystallographica. Section C, Structural Chemistry》2003,59(10):m390-m391
The title compound, [Ag3WIS4(C17H14NP)3]·0.5CH2Cl2, is a cubane‐type heterometallic cluster containing diphenyl(2‐pyridyl)phosphine (Ph2PPy). The pyridyl group of Ph2PPy remains uncoordinated, so the Ph2PPy ligand is monodentate and coordinates to one Ag atom. The W atom and three Ag atoms form a distorted tetrahedral geometry, capped by one I atom and three S atoms. 相似文献
7.
Shu‐Mei Chen Can‐Zhong Lu Ya‐Qin Yu Quan‐Zheng Zhang Xiang He 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(9):m437-m439
A novel chain molybdenum compound, {[Mo2O6(C6H5NO2)]·H2O}n, which was synthesized under hydrothermal conditions, consists of an infinite rail‐like chain formed by molybdenum oxide units linked by zwitterionic nicotinic acid ligands. Each Mo atom is coordinated octahedrally by six O atoms and the MoO6 octahedra are linked to one another via edge‐sharing to produce a zigzag polymeric chain, with nicotinic acid ligands located, alternately, on each side of the rail‐like chain plane. 相似文献
8.
You‐Ju Zhong Yan‐Qiong Sun Guo‐Yu Yang 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(10):m504-m506
The structure of the title compound, [Zn4(C2O4)(PO4)2(H2O)2]n, which was synthesized under hydrothermal conditions, consists of zinc phosphate layers joined by bridging oxalate ligands to generate a three‐dimensional framework. An extended zinc phosphate layer lies parallel to the ab plane and within this layer there are helical chains, composed of ZnO6 octahedra and ZnO5 square pyramids, that run parallel to the b axis and coincide with the 21 screw element. The oxalate groups sit on crystallographic inversion centers. 相似文献
9.
Sophie H. Dale Mark R. J. Elsegood Sarita Kainth 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(2):m76-m78
The title compound, [Pb(C8H4O4)(H2O)]n, forms as an insoluble product in the reaction of sodium terephthalate(2−) with Pb(NO3)2 in water. Analysis has shown that the crystal structure is centrosymmetric, with the asymmetric unit containing one formula unit. The lead geometry is hemidirected seven‐coordinate, with both monodentate and bidentate carboxylate coordination modes present. The combination of hydrogen bonds and coordination bonds produces a three‐dimensional structure, including the first example, in a lead complex, of the common metal‐coordinated carboxylate/water (6) graph‐set motif. 相似文献
10.
Xi‐Rui Zeng Yan Xu Ren‐Geng Xiong Li‐Juan Zhang Xiao‐Zeng You 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(8):e325-e326
The title complex, [Eu(C6H4O2)3(H2O)2], has a double carboxylate‐bridged infinite‐chain structure, with one chelating carboxylate group on each Eu ion centre, which also binds to two water molecules to yield an eight‐coordinate square‐antiprismatic geometry, with Eu—O bond lengths in the range 2.338 (3)–2.594 (3) Å. The pyridine N atoms of the isonicotinate groups do not coordinate to the Eu ions; instead, they direct the formation of EuIII coordination polymers via hydrogen bonding with coordinated water molecules. 相似文献
11.
Shan Gao Zhen‐Zhong Lu Li‐Hua Huo Zhi‐Biao Zhu Hui Zhao 《Acta Crystallographica. Section C, Structural Chemistry》2005,61(1):m22-m24
The title complex, poly[disilver(I)‐μ8‐1,5‐naphthalenedisulfonato‐3,4‐η:7,8‐η:κ6O:O′:O′′:O′′′:O′′′′:O′′′′′], [Ag2(C10H6O6S2)]n, exists as a three‐dimensional framework of AgI atoms connected by η10,μ8‐1,5‐naphthalenedisulfonate ligands through both Ag–sulfonate and Ag–η2‐arene interactions. Each AgI atom exhibits a distorted tetrahedral geometry defined by three O atoms of independent sulfonate groups and one C=C bond of the naphthalene group. 相似文献
12.
Masood Parvez Saqib Ali Sajjad Ahmad Moazzam Hussain Bhatti Muhammad Mazhar 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(6):m334-m335
The crystal structure of catena‐poly[[tri‐n‐butyltin]‐μ‐3‐(1‐naphthylaminocarbonyl)acrylato‐κ2O1:O3], [Sn(C4H9)3(C14H10NO3)]n, is composed of polymeric chains wherein the metal center exhibits a distorted trigonal‐bipyramidal geometry, with three n‐butyl groups defining the trigonal plane [mean Sn—C 2.133 (7) Å] and the axial positions being occupied by the carboxylate O atoms of two different N‐(1‐naphthyl)maleamate ligands with inequivalent Sn—O distances [2.167 (4) and 2.457 (4) Å]. The N‐(1‐naphthyl)maleamate fragment forms an essentially planar seven‐membered ring involving an intramolecular N—H?O hydrogen bond. 相似文献
13.
Richard L. Speer A. Alan Pinkerton 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(8):m441-m442
The crystal structure of the title compound, [FeCl2(C4H8O2)(H2O)2]n, contains six‐coordinate FeII atoms in approximately octahedral environments. The FeII atoms have symmetry, i.e. all pairs of identical ligands are trans. The structure consists of polymeric chains made up of dioxane molecules, in the chair conformation with symmetry, linking the FeII centers. The chains are crosslinked by O—H?Cl hydrogen bonds. 相似文献
14.
Daniel E. Lynch Helen L. Duckhouse 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(10):e425-e425
The structure of the title compound, [Cu2(C9H9O3)4(C4H5N3)], comprises a zigzag polymer of alternating tetrakis(carboxylato‐O:O′)dicopper(II) and 2‐aminopyrimidine units linked by axial Cu—N bonds, and the non‐centrosymmetric structure has four unique (3‐methoxyphenyl)acetate moieties. 相似文献
15.
Zhong‐Lu You Hai‐Liang Zhu Wei‐Sheng Liu 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(6):m231-m232
The title compound, {[Ag(C6H16N2)](C9H7O2)·2H2O}n, has been synthesized and characterized by elemental analysis and single‐crystal X‐ray diffraction. The Ag atom is coordinated in a linear configuration by two N atoms from two hexane‐1,6‐diamine ligands, giving a zigzag polymeric chain with an [–Ag—N—C—C—C—C—C—C—N–]n backbone running parallel to the c axis. In the crystal packing, adjacent chains interact with the anions via the lattice water molecules, thus forming layers parallel to the bc plane. 相似文献
16.
Jing‐Mei Xiao 《Acta Crystallographica. Section C, Structural Chemistry》2010,66(11):m348-m350
The title compound, {(C7H15N2Cl)2[Cd3Cl10]·4H2O}n, consists of 1‐chloromethyl‐1,4‐diazoniabicyclo[2.2.2]octane dications, one‐dimensional inorganic chains of {[Cd3Cl10]4−} anions and uncoordinated water molecules. Each of the two independent CdII ions, one with site symmetry 2/m and the other with site symmetry m, is octahedrally coordinated by chloride ions (two with site symmetry m and one with site symmetry 2), giving rise to novel polymeric zigzag chains of corner‐sharing Cd‐centred octahedra parallel to the c axis. The organic cations, bisected by mirror planes that contain the two N atoms, three methylene C atoms and the Cl atom, are ordered. Hydrogen bonds (O—H...Cl and O—H...O) between the water molecules (both with O atoms in a mirror plane) and the chloride anions of neighbouring chloridocadmate chains form a three‐dimensional supramolecular network. 相似文献
17.
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
18.
Nobuo Okabe Michihiro Tsujita 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(12):1418-1419
In the title compound, [Li(C5H3N4O2)(H2O)2]n, the coordinate geometry about the Li+ ion is distorted tetrahedral and the Li+ ion is bonded to N and O atoms of adjacent ligand molecules forming an infinite polymeric chain with Li—O and Li—N bond lengths of 1.901 (5) and 2.043 (6) Å, respectively. Tetrahedral coordination at the Li+ ion is completed by two cis water molecules [Li—O 1.985 (6) and 1.946 (6) Å]. The crystal structure is stabilized both by the polymeric structure and by a hydrogen‐bond network involving N—H?O, O—H?O and O—H?N hydrogen bonds. 相似文献
19.
Ying Xu Rui‐Hu Wang Ben‐Yong Lou Lei Han Mao‐Chun Hong 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(6):m296-m298
In the title compound, [Fe(C5H3N2O4)2]n, each Fe atom lies on a centre of symmetry, in an octahedral coordination environment consisting of two chelate rings [Fe—N = 2.154 (3) Å and Fe—O = 2.180 (3) Å] and two carboxylate O atoms [Fe—O = 2.111 (2) Å] from imidazole‐4,5‐dicarboxylate ligands. Extensive hydrogen‐bonding interactions exist between layers constructed of Fe4 squares, forming tunnels along the a axis with large voids. 相似文献
20.
Zhao‐Peng Deng Shan Gao Li‐Hua Huo Hui Zhao 《Acta Crystallographica. Section C, Structural Chemistry》2005,61(12):m523-m525
In the title three‐dimensional coordination polymer, [Sr(4‐CPOA)(H2O)]n (where 4‐CPOA2− is the 4‐carboxylatophenoxyacetate dianion, C9H6O5), each SrII atom displays a bicapped triangular prismatic configuration, defined by five carboxyl and one ether O atom from five different 4‐CPOA2− ligands, as well as two water molecules. The SrII atoms are covalently linked by 4‐CPOA2− ligands and water molecules, giving rise to a three‐dimensional open framework. In previously studied polymers of this type, the 4‐CPOA2− ligand shows a variety of binding modes to metal ions, from mono‐ to pentadentate. In the present SrII complex, a novel hexadentate bridging mode is observed. 相似文献