共查询到20条相似文献,搜索用时 31 毫秒
1.
Xu‐Cheng Fu Ming‐Tian Li Xiao‐Yan Wang Cheng‐Gang Wang 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(1):m13-m15
In the crystal structure of the title complex, [Zn(C3H2O4)(C12H8N2)(H2O)2], the ZnII atom displays a distorted octahedral geometry, being coordinated by two N atoms from the 1,10‐phenanthroline ligand, two O atoms from different carboxylate groups of the chelating malonate dianion and two O atoms of cis water molecules. The complex molecules are linked to form a three‐dimensional supramolecular array by both hydrogen‐bonding interactions between coordinated water molecules and the uncoordinated carboxylate O atoms of neighboring molecules, and aromatic π–π stacking interactions between neighboring phenanthroline rings. 相似文献
2.
Kou‐Lin Zhang Jian‐Guo Lin Ya‐Qiong Wang Wen‐Lin Xu Jiu‐Tong Chen 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(9):m454-m456
The title compound, [Zn(C7H4NO4)2(C12H8N2)(H2O)], has been synthesized. X‐Ray analysis reveals that it is a neutral zinc(II) mononuclear carboxylate complex based on mixed N‐ and O‐donor ligands. The Zn atom is five‐coordinate in a distorted trigonal–bipyramidal coordination environment involving two O atoms of two monodentate 2‐nitrobenzoate molecules, two N atoms of a 1,10‐phenanthroline molecule and one O atom of a water molecule. The axial positions are occupied by a carboxylate O atom from the 2‐nitrobenzoate ligand and an N atom from the 1,10‐phenanthroline ligand [N—Zn—O = 167.66 (9)°]. 相似文献
3.
Abdurrahman engül Orhan Büyükgüngr 《Acta Crystallographica. Section C, Structural Chemistry》2005,61(3):m119-m121
In the title compound, [Cu(C6H4NO3)2(H2O)2], the CuII ion lies on an inversion centre and has an elongated octahedral environment, equatorially trans‐coordinated by two N,O‐bidentate picolinate ligands and axially coordinated by two water O atoms. The complex molecules form layers, which are linked by O—H⋯O hydrogen bonds between the aqua ligands and neighbouring carboxylate groups. An intramolecular hydrogen bond between the coordinated carboxylate O atom and the hydroxy H atom is also observed. 相似文献
4.
(2,9‐Dimethyl‐1,10‐phenanthroline‐κ2N,N′)(pyridine‐2,6‐dicarboxylato‐κ3O2,N,O6)copper(II) trihydrate
Ibrahim Uar Ahmet Bulut Orhan Büyükgüngr 《Acta Crystallographica. Section C, Structural Chemistry》2005,61(11):m479-m481
The copper(II) centre in the mononuclear title complex, [Cu(C7H3NO4)(C14H12N2)]·3H2O, is surrounded by one bidentate 2,9‐dimethyl‐1,10‐phenanthroline (dmphen) ligand and one tridentate pyridine‐2,6‐dicarboxylate ligand, and exhibits a distorted square‐pyramidal geometry. The crystal packing involves both hydrogen‐bonding and π–π interactions. The solvent water molecules link monomers to one another through hydrogen‐bonding interactions, forming ladder‐like chains in the bc plane. Face‐to‐face and slipped π–π interactions also occur between dmphen rings of neighboring molecules and are responsible for interchain packing. 相似文献
5.
brahim Uar Ahmet Bulut Canan Kazak 《Acta Crystallographica. Section C, Structural Chemistry》2005,61(9):m428-m431
The asymmetric unit of the title compound, {[Pb(C4O4)(C12H8N2)2(H2O)]·2H2O}n, contains one squarate dianion, two phenanthroline (phen) ligands and one aqua ligand all coordinated to Pb, and two solvent water molecules. The eight‐coordinate Pb metal ion displays a distorted bicapped trigonal–prismatic coordination environment, defined by three squarate O atoms, four N atoms from two chelating phen ligands and one O atom from the coordinated water molecule. The crystal structure contains chains of squarate‐1,2,3‐bridged PbII ions running in the [010] direction. These polymeric chains are linked to one another via offset face‐to‐face π–π interactions between the phen ligands, which lead to a two‐dimensional network extending along the (001) plane. The crystal structure is also stabilized by O—H⋯O intermolecular hydrogen‐bond interactions, forming a three‐dimensional network. 相似文献
6.
Jian Zhang Zhao‐Ji Li Yi‐Hang Wen Yao Kang Ye‐Yan Qin Yuan‐Gen Yao 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(8):m389-m391
The title compound, [Cd(C6H4NO2)2(H2O)2]n, forms a one‐dimensional chain structure based on a Cd atom with approximate pentagonal bipyramidal coordination geometry and two nicotinate ligands in different coordination modes. One acts as a tridentate ligand, chelating one Cd atom through the carboxylate group while simultaneously binding to a second symmetry‐related Cd atom through the pyridine N atom; the other acts only as a bidentate ligand through its carboxylate group. Hydrogen bonds utilizing the coordinated water molecules, uncoordinated nitrogen and carboxylate O atoms as acceptors link the chains. 相似文献
7.
Chang‐Sheng Gu Xiao‐Min Hao Shu‐Xia Guan Ji‐Wei Liu 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(11):m516-m518
In the title coordination polymer, {[Ba(C8H5Cl2O3)2(H2O)]·H2O}n, each BaII atom is nine‐coordinated by six carboxylate O atoms and one ether O atom from five symmetry‐related 2,4‐dichlorophenoxyacetate ligands, and by two O atoms from water molecules, thus defining a distorted tricapped trigonal prism. The BaII ions are bridged by bidentate water molecules and by tridentate and tetradentate 2,4‐dichlorophenoxyacetate groups, leading to a two‐dimensional layer structure. The crystal structure is further stabilized by hydrogen‐bonding interactions within each layer. 相似文献
8.
Yu Zhang Hanbing Tao Chunying Duan Yizhi Li Longgen Zhu 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(3):m188-m189
In the centrosymmetric title complex, [Mn(C7H8N2O2)4(H2O)2](ClO4)2, the MnII ion is in an octahedral environment, with the equatorial plane being defined by the O atoms of four monodentate carboxylate groups, and the octahedron being completed by two trans‐coordinated water molecules. There are intramolecular hydrogen bonds between the coordinated water molecules and the non‐coordinated O atoms of the carboxylate groups. Hydrogen bonds between the amino groups and the carboxylate groups of neighbouring molecules generate a layered hydrogen‐bonded network. 相似文献
9.
Tetrakis(2,2′‐bipyridine‐κ2N,N′)tetrakis(μ‐salicylato‐κ3O,O′:O′′)‐quadro‐tetrazinc(II) decahydrate
Yue Wang Mamiko Odoko Nobuo Okabe 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(10):m479-m481
The title compound, [Zn4(C7H4O3)4(C10H8N2)4]·10H2O, crystallizes as a centrosymmetric tetranuclear cyclic complex containing four ZnII atoms bridged by four carboxylate groups from salicylate ligands, with a syn–anti configuration. Each ZnII atom has a distorted trigonal–bipyramidal coordination geometry, formed by two N atoms of a 2,2′‐bipyridine ligand and three O atoms from two salicylate ligands. The complex is stabilized by intramolecular π–π interactions between pairs of bipyridine rings and a 16‐membered gear‐wheel‐shaped cyclic framework. The hydrogen‐bonding network is formed via the water molecules. 相似文献
10.
Shu‐Qin Yao Xiao‐Li Gao Miao‐Li Zhu Li‐Ping Lu 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(5):m183-m185
In the title compound, [Cd(C14H10NO3)2(H2O)2], which crystallizes with Z = 4 in the space group C2c, the Cd atom is located on a twofold rotation axis and coordinated by six O atoms from two water molecules and two carboxylate groups of two planar 4‐(2‐hydroxybenzylideneamino)benzoate ligands, with a dihedral angle of 85.6 (1)° between them. Strong O—H⋯O hydrogen bonding in the coordination sphere, together with π–π stacking interactions, assemble the molecules into two‐dimensional layers. 相似文献
11.
Necmi Dege Hasan Ibudak Elif Adyaman 《Acta Crystallographica. Section C, Structural Chemistry》2007,63(1):m13-m15
In the crystal structure of the title compound [systematic name: diaquabis(6‐methyl‐2,2‐dioxo‐1,2,3‐oxathiazin‐4‐olato‐κO4)bis(3‐methylpyridine‐κN)nickel(II)], [Ni(C4H4NO4S)2(C6H7N)2(H2O)2], the NiII centre resides on a centre of symmetry and has a distorted octahedral geometry. The basal plane is formed by two carbonyl O atoms of two monodentate trans‐oriented acesulfamate ligands and two trans aqua ligands. The axial positions in the octahedron are occupied by two N atoms of two trans pyridine ligands. Molecules are stacked in columns running along the a axis. There are π–π stacking interactions between the molecules in each column, with a distance of 3.623 (2) Å between the centroids of the pyridine rings. There are also O—H⋯O interactions between the columns. 相似文献
12.
Jean‐Claude Daran Pascale Lemoine Bernard Viossat 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(4):m210-m212
The asymmetric unit of the title compound, [Zn(C10H6NO2)2(C12H8N2)]·1.5C3H7NO, contains one monomeric zinc complex and 1.5 disordered dimethylformamide solvate molecules. The Zn atom is coordinated to one 1,10‐phenanthroline ligand and to two isoquinolinecarboxylate anions (IQC?) via their N and O atoms. The complex exhibits a distorted octahedral geometry around the ZnII atom, with the apical positions occupied by the O atoms of the IQC? ligands. The Zn atom lies 0.049 (1) Å out of the basal plane. The crystal packing is characterized by several hydrogen bonds. 相似文献
13.
Chengbing Ma Feng Chen Changneng Chen Qiutian Liu 《Acta Crystallographica. Section C, Structural Chemistry》2003,59(12):m516-m518
In the title compound, [Mn(C5H3N2O4)2(H2O)2], the MnII atom lies on an inversion centre, is trans‐coordinated by two N,O‐bidentate 1H‐imidazole‐4,5‐dicarboxylate monoanionic ligands [Mn—O = 2.202 (3) Å and Mn—N = 2.201 (4) Å] and two water molecules [Mn—O = 2.197 (4) Å], and exhibits a distorted octahedral geometry, with adjacent cis angles of 76.45 (13), 86.09 (13) and 89.20 (13)°. The complete solid‐state structure can be described as a three‐dimensional supramolecular framework, stabilized by extensive hydrogen‐bonding interactions involving the coordinated water molecules, the carboxy O atoms and the protonated imidazole N atoms of the imidazole‐4,5‐dicarboxylate ligands. 相似文献
14.
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
15.
Hong Ryol Suh Hyung Sock Suh Sock Sung Yun Eun Kwang Lee Sung Kwon Kang 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(4):m202-m203
In the title compound, [Y(C6H3N2O5)3(H2O)3], the Y atom is nine‐coordinate with a slightly distorted tricapped trigonal prismatic coordination geometry. The YIII ion is coordinated to three bidentate 2,6‐dinitrophenolate ligands and three water molecules. The Y—O bond distances are in the range 2.217 (3)–2.754 (4) Å, with the Y—O distances from the nitro groups being longer than those from the water molecules and the phenol groups. The coordinated NO2 groups are almost coplanar with the benzene rings. 相似文献
16.
Sujittra Youngme Jaturong Phatchimkun Narongsak Chaichit 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(6):m267-m268
In the structure of the title complex, [Cu(C2O4)(C10H9N3)(H2O)]·H2O, the CuII atom displays a square‐pyramidal geometry, being coordinated by two N atoms from the di‐2‐pyridylamine ligand, two O atoms from the oxalate group and one O atom of a water molecule. The complex molecules are linked to form a three‐dimensional supramolecular array by hydrogen‐bonding interactions between coordinated/uncoordinated water molecules and the uncoordinated oxalate O atoms of neighboring molecules. 相似文献
17.
Thidarat Chotkhun Sujittra Youngme Narongsak Chaichit 《Acta Crystallographica. Section C, Structural Chemistry》2007,63(2):m59-m61
In the title dinuclear acetate‐bridged complex, [Cu2(C2H3O2)3(NCS)(C10H9N3)2], the two Cu atoms are five‐coordinated, with a basal plane consisting of two N atoms of a di‐2‐pyridylamine (dpyam) ligand and two O atoms of two different acetate ligands. The axial positions of these Cu atoms are coordinated to N and O atoms from thiocyanate and acetate molecules, respectively, leading to a distorted square‐pyramidal geometry with τ values of 0.30 and 0.22. Both CuII ions are linked by an acetate group in the equatorial–equatorial positions and have syn–anti bridging configurations. Hydrogen‐bond interactions between the amine H atom and the coordinated and uncoordinated O atoms of the acetate anions generate an infinite one‐dimensional chain. 相似文献
18.
Qing‐Yan Liu Sheng‐Liang Zhong Yu‐Ling Wang 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(9):m395-m397
In the title compound, [In(C8H4O4)(OH)(H2O)]n, the coordination of the InIII ion is composed of six O atoms from three dianionic benzene‐1,2‐dicarboxylate ligands, two hydroxyl groups and one coordinated water molecule in a distorted octahedral geometry. The In3+ ions are linked by the hydroxyl groups to form zigzag In–OH–In chains, which are further bridged by the benzene‐1,2‐dicarboxylic acid ligands to generate a two‐dimensional layered structure featuring three types of rings (six‐, 14‐ and 20‐membered). Hydrogen bonds between the water molecule and a carboxylate O atom, and between the hydroxyl group and a carboxylate O atom, are observed within the layers. In the crystal packing, there are π–π stacking interactions between the benzene rings of adjacent layers, with a centroid‐to‐centroid distance of 3.668 (3) Å and a dihedral angle of 4.8 (2)°. 相似文献
19.
Ahmet Bulut brahim Uar Orhan Büyükgüngr 《Acta Crystallographica. Section C, Structural Chemistry》2005,61(5):m218-m220
The asymmetric unit of the title compound, {[Cu(C4O4)(C6H6N2O)2(H2O)2]·2H2O}n, consists of one pyridine‐4‐carboxamide (isonicotinamide or ina) ligand, one‐half of a squarate dianion, a coordinated aqua ligand and a solvent water molecule. Both the CuII and the squarate ions are located on inversion centers. The CuII ions are octahedrally surrounded by four O atoms of two water molecules and two squarate anions, and by two N atoms of the isonicotinamide ligands. The crystal structure contains chains of squarate‐1,3‐bridged CuII ions. These chains are held together by N—H⋯O and O—H⋯O intermolecular hydrogen‐bond interactions, forming an extensive three‐dimensional network. 相似文献
20.
Yan Yang Ming‐Hua Zeng Fa‐Yan Meng Hong Liang 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(9):m392-m394
In the title compound, [Cd(C9H6O5)(C10H8N2)(H2O)]n, the CdII atom is coordinated in a distorted octahedral fashion by two carboxylate groups (one in a monodentate and one in a bidentate fashion) from two 4‐carboxylatophenoxyacetate anions, two N atoms from a 2,2′‐bipyridine ligand and one aqua ligand. The structure is a helix with a long pitch of 16.441 (5) Å. A three‐dimensional supramolecular network is further constructed through π–π stacking and hydrogen‐bonding interactions between the helices. 相似文献