共查询到20条相似文献,搜索用时 15 毫秒
1.
Andr Deluzet Olivier Guillou 《Acta Crystallographica. Section C, Structural Chemistry》2003,59(7):m277-m279
The title compound is composed of one‐dimensional polymeric {[Er2(C12O12)(H2O)10]·4H2O}n chains containing Er in a slightly distorted antiprismatic eightfold coordination. The benzenehexacarboxylate ion is located about an inversion centre. Water molecules of crystallization, linked by hydrogen bonding to water molecules of the rare earth coordination spheres or the carboxylate groups of the organic ligands, fill the space generated by the packing of the separated chains. 相似文献
2.
catena‐Poly[[bis[aqua(1,10‐phenanthroline)lead(II)]‐di‐μ3‐5‐carboxy‐3‐sulfonatobenzoato] dihydrate]
Mao‐Lin Hu Xin‐Hua Li Hong‐Ping Xiao Qiao Zhang 《Acta Crystallographica. Section C, Structural Chemistry》2005,61(3):m130-m132
In the centrosymmetric title polymer, catena‐poly[[bis[aqua(1,10‐phenanthroline‐κ2N,N′)lead(II)]‐di‐μ3‐5‐carboxy‐3‐sulfonatobenzoato‐1:2:1′κ4O3:O1,O1′:O1;2′:1:2κ4O1:O1,O1′:O3] dihydrate], {[Pb(C8H4O7S)(C12H8N2)(H2O)]·H2O}n, each seven‐coordinate lead(II) ion is bound by five O atoms from one water molecule and three 5‐sulfoisophthalate (sip) anions, and by two N atoms from a 1,10‐phenanthroline (phen) ligand. The sip sulfonate group is monodentate. One O atom of the sip carboxylate group is chelated to one Pb2+ cation, with the other also bridging an adjacent Pb2+ cation. The carboxyl group is uncoordinated. This unusual coordination results in a chain structure along the b axis, which is linked by strong intermolecular hydrogen bonds into a three‐dimensional network. 相似文献
3.
Qiong‐Hua Jin Xiu‐Lan Xin Xiao‐Yan Ci Kai‐Bei Yu 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(3):m174-m176
In the title supramolecular complex, [Ag2Cl2(C4H5N3)(C18H15P)2]n, a one‐dimensional chain is formed by dimeric {Ag2Cl2(PPh3)2} units bridged by 2‐aminopyrimidine moieties. The Ag atoms are four‐coordinate, with an AgCl2NP core. A crystallographic inversion centre is located in the centre of the Ag2Cl2 chelate ring, while the crystallographic twofold axis bisects the 2‐aminopyrimidine ligand. 相似文献
4.
Xiao‐Qin Wang Jian Zhang Zhao‐Ji Li Yi‐Hang Wen Jian‐Kai Cheng Yuan‐Gen Yao 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(12):m657-m658
The title compound, [Nd(C7H3O6S)(H2O)]n or [Nd(SSA)(H2O)]n (H3SSA is 5‐sulfosalicylic acid), was synthesized by the hydrothermal reaction of Nd2O3 with H3SSA in water. The compound forms a three‐dimensional network in which the asymmetric unit contains one NdIII atom, one SSA ligand and one coordinated water molecule. The central NdIII ion is eight‐coordinate, bonded to seven O atoms from five different SSA ligands [Nd—O = 2.405 (4)–2.612 (4) Å] and one aqua O atom [Nd—OW = 2.441 (4) Å]. 相似文献
5.
Shi‐Jie Li Wen‐Dong Song Dong‐Liang Miao De‐Yun Ma 《Acta Crystallographica. Section C, Structural Chemistry》2011,67(4):m105-m107
In the centrosymmetric dinuclear anions of the title bimetallic complex, {[Mg(H2O)6][Cu2(C8H2NO7)2]·2H2O}n, each CuII ion is strongly coordinated by four O atoms in a distorted square‐planar geometry. Two of these O atoms belong to phenolate groups and the other two to carboxylate groups from 5‐nitro‐2‐oxidoisophthalate (L1) trianions, derived from 5‐nitrobenzene‐1,2,3‐tricarboxylic acid (O2N–H3L). The phenolate O atoms bridge the two CuII ions in the anion. In addition, each CuII cation interacts weakly with a symmetry‐related carboxylate O atom of an adjacent L1 ligand, giving a square‐pyramidal coordination geometry. The copper residue forms a ladder‐like linear coordination polymer via L1 ligands. The [Mg(H2O)6]2+ cations sit on centres of inversion. The polymeric anions, cations and free water molecules are self‐assembled into a three‐dimensional supramolecular network via O—H...O hydrogen bonds. 相似文献
6.
Chun‐Xiang Wang Zhi‐Feng Li Ping Wang 《Acta Crystallographica. Section C, Structural Chemistry》2007,63(11):m473-m475
In the title compound, [Nd2(C4H4O4)2(C2O4)(H2O)2]n, the flexible succinate anion assumes the gauche conformation and bridges the nine‐coordinate Nd atoms to generate two‐dimensional layers parallel to (010). The coordination polymer layers are linked into a three‐dimensional framework by the rigid oxalate ligands. The oxalate ions are located on a center of inversion. 相似文献
7.
Yu Liu Duan‐Jun Xu Chen‐Hsiung Hung 《Acta Crystallographica. Section C, Structural Chemistry》2005,61(4):m155-m157
In the title polymeric complex, [Mn(C6H8O4)(C7H6N2)2(H2O)]n, the MnII atom is surrounded by two adipate dianions, two benzimidazole molecules and one coordinated water molecule. The Mn atoms and coordinated water molecule are located on a twofold axis, and the bridging adipate ligand is located on an inversion center. The adipate dianions bridge neighboring MnII atoms to form polymeric chains. Each MnII atom is seven‐coordinate, the longest Mn—O bond length being 2.5356 (16) Å. 相似文献
8.
Christian Nther Inke Jeß 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(3):m190-m192
The CuI cations in the title compound, [Cu(NCS)(C6H6N2O)2]n, are coordinated by N atoms from each of two mirror‐related nicotinamide ligands, as well as by one N atom of one thiocyanate ligand and one S atom of a symmetry‐related thiocyanate ligand, within a slightly distorted tetrahedron. The CuI cations and the thiocyanate anions are located on a crystallographic mirror plane and the nicotinamide ligands occupy general positions. The CuI cations are connected by the thiocyanate anions to form chains in the direction of the crystallographic a axis. These chains are connected by hydrogen bonds between the amide H atoms and the O atoms of adjacent nicotinamide ligands, to give a three‐dimensional structure. 相似文献
9.
Ming‐Lin Guo Chen‐Hu Guo 《Acta Crystallographica. Section C, Structural Chemistry》2009,65(5):m195-m197
In the title complex, {[La2(C5H6O4)3(H2O)4]·H2O}n, the La atoms are connected by bridging O atoms from carboxylate groups to build, through centres of inversion, two‐dimensional layers parallel to the ac plane containing decanuclear 20‐membered rings. The coordinated water molecules are involved in intralayer hydrogen‐bond interactions. Adjacent layers are linked via hydrogen bonding to the solvent water molecules. This work represents the first example of a new substituted malonate–lanthanide complex. 相似文献
10.
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
11.
Guo‐Ming Wang Hai‐Lan Huang Hui Li Qing‐Hua Zheng 《Acta Crystallographica. Section C, Structural Chemistry》2007,63(11):m531-m533
The two isomorphous lanthanide coordination polymers, {[Ln2(C6H4NO2)2(C8H4O4)(OH)2(H2O)]·H2O}n (Ln = Er and Tm), contain two crystallographically independent Ln ions which are both eight‐coordinated by O atoms, but with quite different coordination environments. In both crystal structures, adjacent Ln atoms are bridged by μ3‐OH groups and carboxylate groups of isonicotinate and benzene‐1,2‐dicarboxylate ligands, forming infinite chains in which the Er...Er and Tm...Tm distances are in the ranges 3.622 (3)–3.894 (4) and 3.599 (7)–3.873 (1) Å, respectively. Adjacent chains are further connected through hydrogen bonds and π–π interactions into a three‐dimensional supramolecular framework. 相似文献
12.
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
13.
Wei‐Qiang Liao Qin‐Qin Zhou Yi Zhang 《Acta Crystallographica. Section C, Structural Chemistry》2013,69(4):380-383
The title compound, {(C6H14N2O2)[Cu2Cl6(H2O)]}n, consists of 1,4‐dihydroxy‐1,4‐diazoniabicyclo[2.2.2]octane dications and one‐dimensional inorganic anionic {[Cu2Cl6(H2O)]2−}n chains in which both five‐coordinate [CuCl3(H2O)]− and five‐coordinate [CuCl3]− units exist. These two distinct type of unit are linked together by one chloride ion and are bridged across centres of inversion to further units of their own type through two chloride ions, giving rise to novel polymeric zigzag chains parallel to the c axis. The chains are connected by O—H...Cl hydrogen bonds to produce R24(16) ring motifs, resulting in two‐dimensional layers parallel to the ac plane. These layers are linked into a three‐dimensional framework with the organic cations via O—H...Cl hydrogen bonds. Hydrogen bonding between the chains, and between the chains and the organic cations, provides stability to the crystal structure. 相似文献
14.
Mohamed Al Amine Benhacine Malika Hamadne Sofiane Bouacida Hocine Merazig 《Acta Crystallographica. Section C, Structural Chemistry》2016,72(3):243-250
The oxalate dianion is one of the most studied ligands and is capable of bridging two or more metal centres and creating inorganic polymers based on the assembly of metal polyhedra with a wide variety of one‐, two‐ or three‐dimensional extended structures. Yellow single crystals of a new mixed‐metal oxalate, namely catena‐poly[[diaquasodium(I)]‐μ‐oxalato‐κ4O1,O2:O1′,O2′‐[diaquairon(III)]‐μ‐oxalato‐κ4O1,O2:O1′,O2′], [NaFe(C2O4)2(H2O)4]n, have been synthesized and the crystal structure elucidated by X‐ray diffraction analysis. The compound crystallizes in the noncentrosymmetric space group I41 (Z = 4). The asymmetric unit contains one NaI and one FeIII atom lying on a fourfold symmetry axis, one μ2‐bridging oxalate ligand and two aqua ligands. Each metal atom is surrounded by two chelating oxalate ligands and two equivalent water molecules. The structure consists of infinite one‐dimensional chains of alternating FeO4(H2OW1)2 and NaO4(H2OW2)2 octahedra, bridged by oxalate ligands, parallel to the [100] and [010] directions, respectively. Because of the cis configuration and the μ2‐coordination mode of the oxalate ligands, the chains run in a zigzag manner. This arrangement facilitates the formation of hydrogen bonds between neighbouring chains involving the H2O and oxalate ligands, leading to a two‐dimensional framework. The structure of this new one‐dimensional coordination polymer is shown to be unique among the AIMIII(C2O4)2(H2O)n series. In addition, the absorption bands in the IR and UV–Visible regions and their assignments are in good agreement with the local symmetry of the oxalate ligand and the irregular environment of iron(III). The final product of the thermal decomposition of this precursor is the well‐known ternary oxide NaFeO2. 相似文献
15.
Marcus R. Bond 《Acta Crystallographica. Section C, Structural Chemistry》2010,66(2):m17-m21
The title compound, {(C9H14N)2[Cu3Cl8]}n, consists of parallel chains of alternating quasiplanar Cu2Cl6 and planar CuCl4 complexes separated by trimethylphenylammonium cations. Both inorganic complexes possess inversion symmetry. Pairs of neighboring chloride ions of the CuCl4 complex each form a symmetric bridge and an asymmetric bridge to Cu2Cl6 complexes on either side. The Cu2Cl6 complex contains two symmetric chloride bridges between the copper cations with a terminal chloride bound to each five‐coordinated CuII ion. The CuCl4 complex completes its coordination environment by forming two long semicoordinate contacts to the bridging chloride ions of neighboring Cu2Cl6 complexes. The use of the bridging rather than the terminal chloride ions to form semicoordinate contacts generates a new zigzag chain structure that differs from the straight chain structures found for other A2Cu3Cl8 compounds. The zigzag chain structure is adopted so as to conform to the shorter repeat distance dictated by stacking of the organic cations. 相似文献
16.
Graeme J. Gainsford Tim Kemmitt 《Acta Crystallographica. Section C, Structural Chemistry》2005,61(9):m417-m418
The title compound, [Na(C8H20BO4)]n, has twofold crystallographic symmetry, with the Na+ cations bound by four O atoms [Na—O = 2.251 (3) Å]. The tetraethoxyborate anion acts as a bridging ligand to form one‐dimensional polymers running along the twofold crystal axis. The crystal was treated as a racemic twin. 相似文献
17.
Martin Lutz Antoine M. M. Schreurs Anthony L. Spek Marcel A. H. Moelands Robertus J. M. Klein Gebbink 《Acta Crystallographica. Section C, Structural Chemistry》2010,66(1):m9-m12
The title compound, [Mn(CF3SO3)2(CH3CN)2]n, has an MnII cation on an inversion centre in an octahedral environment. The trifluoromethanesulfonate anions act as bridging ligands and form a one‐dimensional coordination polymer in the direction of the a axis. The F atoms of the trifluoromethanesulfonate anions form layers parallel to the ab plane, but despite short intermolecular distances, no stabilizing F...F interactions are detected. The Mn—N and C—C bonds of the acetonitrile ligand are analyzed according to the Hirshfeld rigid‐bond test. Renninger effects in the reflection data are considered, explored and discussed. 相似文献
18.
Dong Liu 《Acta Crystallographica. Section C, Structural Chemistry》2012,68(2):m34-m36
Solvothermal reaction between Cd(NO3)2, 1,4‐phenylenediacetate (1,4‐PDA) and 1,3‐bis(pyridin‐4‐yl)propane (bpp) afforded the title complex, [Cd(C10H8O4)(C13H14N2)]n. Adjacent carboxylate‐bridged CdII ions are related by an inversion centre. The 1,4‐PDA ligands adopt a cis conformation and connect the CdII ions to form a one‐dimensional chain extending along the c axis. These chains are in turn linked into a two‐dimensional network through bpp bridges. The bpp ligands adopt an anti–gauche conformation. From a topological point of view, each bpp ligand and each pair of 1,4‐PDA ligands can be considered as linkers, while the dinuclear CdII unit can be regarded as a 6‐connecting node. Thus, the structure can be simplified to a two‐dimensional 6‐connected network. 相似文献
19.
Ming‐Liang Tong Xiao‐Ming Chen 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(9):1075-1076
In the title complex, {[Ag(C12H10N2)]NO3}n, the Ag atom, which is in a linear AgN2 geometry, is surrounded by two trans‐related N atoms of two bpe ligands [Ag—N = 2.173 (3) and 2.176 (3) Å; bpe is trans‐1,2‐bis(2‐pyridyl)ethylene]. The bpe ligands bridge neighbouring Ag atoms to form zigzag polymeric chains in the lattice. These adjacent one‐dimensional zigzag chains are extended into a three‐dimensional supramolecular array by strong interchain π?π interactions between the pyridyl rings of adjacent chains. 相似文献
20.
Chuan‐Ming Jin Cai‐Yuan Chen Wei‐Dong Wang Ling‐Yan Wu 《Acta Crystallographica. Section C, Structural Chemistry》2007,63(10):m454-m455
The title compound, [Cd(NO3)2(C9H12N4)2]n, has a one‐dimensional double‐bridged chain polymer structure with a 16‐membered macrometallacyclic tetragonal structural motif. The CdII ion occupies a crystallographic inversion centre and is coordinated by four equatorial N atoms from four distinct bis(2‐methylimidazol‐1‐yl)methane ligands and two apical nitrate O atoms to form a slightly distorted octahedral coordination geometry. 相似文献