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1.
Zhi‐Hong Wu Jin‐Hua Cai Xu‐Ju Yin Ying‐Heng Huang Yi‐Min Jiang 《Acta Crystallographica. Section C, Structural Chemistry》2007,63(6):m267-m269
In the polymeric title compound, {[Cu(C10H7NO5)(H2O)]·H2O}n, the Cu atom adopts a square‐based pyramidal coordination involving a N,O,O′‐tridentate glycine dianionic ligand, a water O atom and an apical bridging carboxylate O atom from an adjacent ligand. The title compound also adopts a carboxylate‐bridged chain structure. The molecular chain propagates in a helical fashion along the b axis of the monoclinic unit cell. Neighbouring chains are linked together to form a three‐dimensional network via hydrogen‐bonding interactions between coordinated and uncoordinated water molecules and O atoms of the bridging carboxylate groups. 相似文献
2.
Seung‐Chul Choi Jaejung Ko Sang Ook Kang Won‐Sik Han Ki‐Young Choi 《Acta Crystallographica. Section C, Structural Chemistry》2007,63(3):m85-m87
The copper(II) ion in the syn–anti carboxylate‐bridged one‐dimensional zigzag chain title complex, {[Cu(C16H18N3O2)]ClO4}n, exhibits a distorted trigonal–bipyramidal environment. Two N atoms and one carboxylate O atom of the ligand form the basal plane, while the axial positions are filled by an N atom of the ligand and one O atom belonging to the carboxylate group of an adjacent molecule. The crystal packing is enhanced by C—H⋯O(perchlorate) hydrogen bonds. 相似文献
3.
Miguel Harvey Sergio Baggio Leopoldo Suescun Ricardo F. Baggio 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(7):811-813
Both title compounds, [Cd(SO4)(C12H8N2)(H2O)2]n and [Cd(SO4)(C14H12N2)(H2O)2]n, respectively, are polymeric and present the Cd atoms in very similar octahedral environments, provided by the bidentate organic ligand (phenanthroline/dimethylphenanthroline), two aqua molecules and two O atoms from two translationally related sulfate groups, which thus act as links in the resulting polymeric chains. 相似文献
4.
Xi‐Teng Yue Jin‐Ju Nie Yan‐Tuan Li Zhi‐Yong Wu Cui‐Wei Yan 《Acta Crystallographica. Section C, Structural Chemistry》2011,67(4):m115-m118
The title complex, [CuNi(C13H16N3O3)(C10H8N2)2(H2O)]ClO4, has a cis‐oxamide‐bridged heterobinuclear cation, with a Cu...Ni separation of 5.3297 (6) Å, counterbalanced by a disordered perchlorate anion. The CuII and NiII cations are located in square‐pyramidal and octahedral coordination environments, respectively. The complex molecules are assembled into a three‐dimensional supramolecular structure through hydrogen bonds and π–π stacking interactions. The influence of the two types of metal cation on the supramolecular structure is discussed. 相似文献
5.
Liang Shen Zhi Min Jing 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(12):m591-m592
The title complex, {[Ni(C2H8N2)3][Na(NCS)3(H2O)]}n, consists of discrete [Ni(en)3]2+ dications (en is ethylenediamine) and polymeric [(H2O)0.5Na(NCS)3(H2O)0.5]n2n? anions. The compound crystallizes in space group Pc1. The NiII atom lies on a threefold axis and has a distorted octahedral coordination geometry. The Na+ cation also lies on a site with imposed crystallographic threefold symmetry and is coordinated by the thiocyanate N atoms (the thiocyanates are in general positions), by one water molecule with crystallographically imposed 32 symmetry and by a second water molecule with crystallographically imposed symmetry. The unique Na atom thus has trigonal–bipyramidal coordination. The O atoms of the water molecules bridge the Na+ cations to form one‐dimensional polymeric chains in the crystal structure. The [Ni(en)3]2+ dications are distributed around and between the chains and are linked to them via N—H?S hydrogen bonds. 相似文献
6.
Zhi‐Guo Zhong Yu‐Quan Feng Ping Zhang 《Acta Crystallographica. Section C, Structural Chemistry》2013,69(8):833-836
A novel copper–niobium oxyfluoride, {[Cu2(C10H7N2O)2][NbOF4]}n, has been synthesized by a hydrothermal method and characterized by elemental analysis, EDS, IR, XPS and single‐crystal X‐ray diffraction. The structural unit consists of one C2‐symmetric [NbOF4]− anion and one centrosymmetric coordinated [Cu2(obpy)2]+ cation (obpy is 2,2′‐bipyridin‐6‐olate). In the [NbOF4]− anion, each NbV metal centre is five‐coordinated by four F atoms and one O atom in the first coordination shell, forming a square‐pyramidal coordination geometry. These square pyramids are then further connected to each other via trans O atoms [Nb—O = 2.187 (3) Å], forming an infinite linear {[NbOF4]−}n polyanion. In the coordinated [Cu2(obpy)2]+ cation, the oxidation state of each Cu site is disordered, which is confirmed by the XPS results. The disordered Cu sites are coordinated by two N atoms and one O atom from two different obpy ligands. The [NbOF4]− and [Cu2(obpy)2]+ units are assembled via weak C—H...F hydrogen bonds, resulting in the formation of a three‐dimensional supramolecular structure. π–π stacking interactions between the pyridine rings [centroid–centroid distance = 3.610 (2) Å] may further stabilize the crystal structure. 相似文献
7.
Kateryna Gubina Vladimir Ovchynnikov Vladymir Amirkhanov Svetlana Shishkina 《Acta Crystallographica. Section C, Structural Chemistry》2013,69(6):606-609
In the title complex, [Cu(C16H16Cl3N3O2P)Cl(C12H8N2)], the CuII cation presents a square‐pyramidal environment, where the CuO2N2 base is formed by two O atoms from carbonyl and phosphoryl groups, and by two N atoms from a 1,10‐phenanthroline molecule. A coordinated Cl atom occupies the apex. N—H...Cl hydrogen bonds link the molecules into one‐dimensional chains. The trichloromethyl group is rotationally disordered over two positions, with occupancies of 0.747 (7) and 0.253 (7). 相似文献
8.
Andrej Pevec Alojz Demar Katsuyuki Aoki Iztok Turel 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(11):m545-m547
In the structure of the title compound, {[Rh2(C2H3O2)4(C7H18N2O)]·0.5C4H8O}n or {[Rh2(O2CMe)4(Hbdmap)]·0.5C4H8O}n, where Hbdmap is 1,3‐bis(dimethylamino)propan‐2‐ol, each Hbdmap ligand is coordinated to two [Rh2(O2CMe)4] units by two N atoms, resulting in a polymeric chain structure. The observed coordination mode of the Hbdmap molecule is unprecedented. 相似文献
9.
Murugan Indrani Ramasamy Ramasubramanian Sudalaiandi Kumaresan Mao‐Lin Hu Manuel Soriano‐García 《Acta Crystallographica. Section C, Structural Chemistry》2008,64(1):m23-m25
In the title complex, {[Cu(C8H8NO3S)2(H2O)]·2H2O}n, the CuII cation has a distorted square‐pyramidal coordination environment consisting of five O atoms, one from a water molecule, one from an N—O group and the other three from the carboxylate groups of two 3‐(2‐pyridylsulfanyl)propionate N‐oxide anions. The aqua[3‐(2‐pyridylsulfanyl)propionato N‐oxide]copper(II) moieties are bridged by 3‐(2‐pyridylsulfanyl)propionate N‐oxide anions to form an infinite three‐dimensional coordination polymer with a zigzag chain structure. The crystal structure is stabilized by hydrogen bonds. 相似文献
10.
Hai‐Rong Wang Chao‐Hui Xia Guo‐Ting Li 《Acta Crystallographica. Section C, Structural Chemistry》2012,68(11):m303-m305
In the title compound, {[Tb(C12H8NO2)3(H2O)2]·H2O}n, the TbIII cation is in an eight‐coordinate environment, ligated by six carboxylate O atoms from five 3‐(pyridin‐4‐yl)benzoate (L) ligands and by two O atoms from water molecules. The cations are bridged by the carboxylate O atoms of the L ligands to form a two‐stranded polymeric chain which is assembled into a three‐dimensional supramolecular network through regular interchain O—H...N hydrogen bonding. On excitation at 320 nm, the title compound displays a series of emissions, which were assigned to the characteristic electronic transitions of TbIII. 相似文献
11.
Wei Sun Yan‐Tuan Li Zhi‐Yong Wu Ning‐Yu Xiao 《Acta Crystallographica. Section C, Structural Chemistry》2007,63(3):m111-m113
In the crystal structure of the title complex, [Ni2(C10H20N4O2)(C12H12N2)2](ClO4)2 or [Ni(dmaeoxd)Ni(dmbp)2](ClO4)2 {H2dmaeoxd is N,N′‐bis[2‐(dimethylamino)ethyl]oxamide and dmbp is 4,4′‐dimethyl‐2,2′‐bipyridine}, the deprotonated dmaeoxd2− ligand is in a cis conformation and bridges two NiII atoms, one of which is located in a slightly distorted square‐planar environment, while the other is in an irregular octahedral environment. The cation is located on a twofold symmetry axis running through both Ni atoms. The dmaeoxd2− ligands interact with each other via C—H⋯O hydrogen bonds and π–π interactions, which results in an extended chain along the c axis. 相似文献
12.
Eleonora Freire Ricardo Baggio 《Acta Crystallographica. Section C, Structural Chemistry》2008,64(4):m164-m166
The present form of barium acetate, formulated as [Ba(C2H3O2)2(H2O)3]n, is the largest reported hydrate of the salt and this leads to a distinct structural behaviour setting it apart from the rest of the family. The compound is a linear polymer with a nine‐coordinate Ba(Oaqua)3(Oacetate)6 monomer unit. The non‐H part of the structure is ordered according to C2/m symmetry, while the disordered water H atoms only abide by this symmetry in a statistical sense. Each molecule is halved by a mirror plane bisecting the Ba centre, one water molecule and one acetate ligand, while containing the other acetate ligand. The chains are interconnected by a disordered water–water/acetate O—H...O hydrogen‐bonding network involving all water H atoms. The structure and stability of this phase are compared with the other known acetates of barium which differ in the degree of hydration. 相似文献
13.
Shan Gao Ji‐Wei Liu Li‐Hua Huo Zhi‐Zhong Sun Jin‐Sheng Gao Seik Weng Ng 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(8):m363-m365
In the title neutral coordination polymer, [Cd(C6H3ClNO2)2(H2O)2]n, each CdII ion is coordinated by one N and four O atoms from three 2‐chloronicotinate ligands and by two aqua ligands, defining a distorted monocapped octahedral coordination geometry. Adjacent Cd atoms are linked by the pyridyl N atom and the bidentate carboxylate functional group of a 2‐chloronicotinate ligand, forming a one‐dimensional infinite chain along the b axis. The Cd⋯Cd distance is 8.112 (3) Å. These chains are linked by O—H⋯O and O—H⋯N hydrogen bonds into a three‐dimensional network structure. 相似文献
14.
Yi‐Ping Guo Hui Wang Guo‐Ting Li 《Acta Crystallographica. Section C, Structural Chemistry》2013,69(8):872-875
In the title compound, [Pb(C12H8NO2)2]n, the Pb atom sits on a crystallographic C2 axis and is six‐coordinate, ligated by two chelating carboxylate groups from two 3‐(pyridin‐4‐yl)benzoate (L) ligands and by two N atoms from another two ligands. Each ligand bridges two PbII centres, extending the structure into a corrugated two‐dimensional (4,4) net. The ligand L is conformationally chiral, with a torsion angle of 27.9 (12)° between the planes of its two rings. The torsion angle has the same sense throughout the structure, so that the extended two‐dimensional polymer is homochiral. Investigation of the thermal stability shows that the network is stable up to 613 K. In the absence of any stereoselective factor in the preparation of the compound, the enantiomeric purity of the crystal studied, based only on the torsional conformation of the ligand, implies that the bulk sample is a racemic conglomerate. 相似文献
15.
Masaki Takehara Masato Hashimoto 《Acta Crystallographica. Section C, Structural Chemistry》2013,69(1):37-40
The unit‐cell parameters of the three title salts, namely, tripotassium, K3[Mo2(CHO2)O3(O2)4], trirubidium, Rb3[Mo2(CHO2)O3(O2)4], and triammonium μ‐(formato‐κ2O:O′)‐μ‐oxido‐bis[oxidobis(peroxido‐κ2O,O′)molybdate(VI)], (NH4)3[Mo2(CHO2)O3(O2)4], which were all crystallized at pH 3, are quite similar, but the potassium and rubidium salt structures are noncentrosymmetric, whereas that of the ammonium salt is centrosymmetric. Formate acts as an O:O′‐bridging ligand in the complex anion and is bound to a μ‐oxido‐bis(oxidodiperoxidomolybdate) unit. 相似文献
16.
Qian Qiao Guo‐Qiang Wu Tian‐Di Tang Seik Weng Ng 《Acta Crystallographica. Section C, Structural Chemistry》2009,65(4):m146-m148
In the title PbII coordination polymer, [Pb(C16H10O4)(C14H8N4)(C3H7NO)]n, each PbII atom is eight‐coordinated by two chelating N atoms from one pyrazino[2,3‐f][1,10]phenanthroline (L) ligand, one dimethylformamide (DMF) O atom and five carboxylate O atoms from three different 4,4′‐ethylenedibenzoate (eedb) ligands. The eedb dianions bridge neighbouring PbII centres through four typical Pb—O bonds and one longer Pb—O interaction to form a two‐dimensional structure. The C atoms from the L and eedb ligands form C—H...O hydrogen bonds with the O atoms of eedb and DMF ligands, which further stabilize the structure. The title compound is the first PbII coordination polymer incorporating the L ligand. 相似文献
17.
Wei Sun Yan‐Tuan Li Zhi‐Yong Wu Shu‐Fang Zhang Zhi‐Wei Yin 《Acta Crystallographica. Section C, Structural Chemistry》2008,64(3):m108-m110
In the crystal structure of the title complex, [Cu2(C10H20N4O2)(C10H8N2)2](ClO4)2, the deprotonated dmaeoxd2− ligand {H2dmaeoxd is N,N′‐bis[2‐(dimethylamino)ethyl]oxamide} occupies an inversion centre at the mid‐point of the central C—C bond and is thus in a trans conformation. The two CuII atoms are located in slightly distorted square‐based pyramidal environments. The binuclear units interact with each other viaπ–π interactions to form a one‐dimensional chain extending in the c direction. 相似文献
18.
Magdalena Wilk Jan Janczak Veneta Videnova‐Adrabinska 《Acta Crystallographica. Section C, Structural Chemistry》2012,68(2):m41-m44
The rigid organic ligand (pyridine‐3,5‐diyl)diphosphonic acid has been used to create the title novel three‐dimensional coordination polymer, [Ca(C5H6NO6P2)2(H2O)]n. The six‐coordinate calcium ion is in a distorted octahedral environment, formed by five phosphonate O atoms from five different (pyridin‐1‐ium‐3,5‐diyl)diphosphonate ligands, two of which are unique, and one water O atom. Two crystallographically independent acid monoanions, L1 and L2, serve to link metal centres using two different coordination modes, viz.η2μ2 and η3μ3, respectively. The latter ligand, L2, forms a strongly undulated two‐dimensional framework parallel to the crystallographic bc plane, whereas the former ligand, L1, is utilized in the formation of one‐dimensional helical chains in the [010] direction. The two sublattices of L1 and L2 interweave at the Ca2+ ions to form a three‐dimensional framework. In addition, multiple O—H...O and N—H...O hydrogen bonds stabilize the three‐dimensional coordination network. Topologically, the three‐dimensional framework can be simplified as a very unusual (2,3,5)‐connected three‐nodal net represented by the Schläfli symbol (4·82)(4·88·10)(8). 相似文献
19.
Hong Li Kai‐Liang Yin Duan‐Jun Xu 《Acta Crystallographica. Section C, Structural Chemistry》2005,61(1):m19-m21
The title compound, [Cu(C7H5O3)2(C7H6N2)2]n, is a one‐dimensional polymeric complex bridged by salicylate anions. The CuII atom is surrounded by three salicylate and two benzimidazole ligands, with a tetragonally elongated octahedral coordination geometry. The Cu—O bond distances in the axial directions are 2.6092 (16) and 2.6834 (17) Å. π–π stacking interactions exist between the benzimidazole rings of neighboring polymeric complex chains. 相似文献
20.
Qi‐Wei Zhang Yi‐Hang Wen Yun‐Long Feng 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(6):m255-m257
The title compound, [Zn2(C5H6O4)2(C13H14N2)]n or [Zn2(glu)2(bpp)]n, is a novel zinc polymer based on mixed flexible glutarate (glu) and 1,3‐di‐4‐pyridylpropane (bpp) ligands. The ZnII center has a distorted tetrahedral geometry and the central atom of the bpp ligand is located at a special site with a C2 axis passing through it. A layer is formed by Zn–glu bonding. Such layers are pillared by bpp ligands, forming a three‐dimensional framework with large channels. The inverted interpenetration of two three‐dimensional frameworks completes the molecular structure. 相似文献