scholarly journals Poly[(μ2-azido-κ2N1:N1)[μ2-5-(8-quinolyloxymethyl)tetrazolato-κ4N1,O,N5:N4]zinc(II)]

2009 ◽  
Vol 65 (6) ◽  
pp. m632-m632
Author(s):  
Hong-ling Cai

In the title compound, [Zn(C11H8N5O)(N3)]n, the Zn atom is hexacoordinated by five N atoms and one O atom in a distorted octahedral geometry. The chelating 5-(8-quinolyloxymethyl)tetrazolate ligands are approximately planar, with a dihedral angle of 3.6 (2)° between the quinoline and tetrazole planes. Adjacent Zn atoms are linked by two bridging azide ligands across a centre of inversion, and further coordination by one N atom of an adjacent tetrazole unit forms two-dimensional frameworks in (100). C—H...N interactions exist between ligands in neighbouring layers.

2012 ◽  
Vol 68 (4) ◽  
pp. m411-m412
Author(s):  
Huimin Wang ◽  
Xiaojun Gu ◽  
Bingbing Zhang ◽  
Haiquan Su

The CoIIIatom in the title compound, [Co(C12H6N2O4)(C12H7N2O4)], is six-coordinated in a distorted octahedral geometry by four N atoms and two O atoms of the chelating 2,2′-bipyridine-6,6′-dicarboxylate and 6′-carboxy-2,2′-bipyridine-6-carboxylate ligands. Intermolecular O—H...O hydrogen bonds and face-to-face π-stacking interactions [centroid–centroid distance = 3.6352 (16) Å] between inversion-related pyridine rings link adjacent mononuclear units into a two-dimensional supramolecular structure, and several intermolecular C—H...O interactions are also observed.


2014 ◽  
Vol 70 (2) ◽  
pp. m63-m64 ◽  
Author(s):  
Akiko Himegi ◽  
Satoshi Kawata

In the title compound, (C12H25NH3)2[Cu(C6Cl2O4)2(C2H5OH)2], the CuIIatom lies on a crystallographic inversion center and is coordinated in a distorted octahedral geometry by four O atoms of two chloranilate ligands and two O atoms of two ethanol molecules which aretransto each other in the axial positions. In the crystal, the CuIImononuclear dianions are linked by O—H...O hydrogen bonds into a tape along thea-axis direction. The tapes are linked through N—H...O hydrogen bonds between the dianion and then-dodecylammonium cation, forming a two-dimensional network parallel to theabplane.


2006 ◽  
Vol 62 (5) ◽  
pp. m1156-m1158 ◽  
Author(s):  
Han Xu ◽  
Ran Sun ◽  
Yi-Zhi Li ◽  
Jun-Feng Bai

The title compound, {[Cu(C8H4O4)(C10H8N2)(H2O)2]·2H2O} n , contains chains of copper(II) centres bridged by bipyridine ligands along the b axis. The chains are bridged by phthalate dianions, forming a rectangular grid complex. Each CuII atom adopts a slightly distorted octahedral geometry, being coordinated by two N atoms of 4,4′-bipyridine, two O atoms of phthalate dianions and two water molecules. Twofold axes are located along the copper–bipyridine chains and through the phthalate dianions.


2013 ◽  
Vol 69 (11) ◽  
pp. m619-m619
Author(s):  
Jaeung Sim ◽  
Taemin Kim ◽  
Jin Kuk Yang

The asymmetric unit of the title compound, [Zn3(HCO2)3(C9H3O6)(C3H7NO)3]n, contains one Zn ion, one formate ligand, oneN,N-dimethylformamide (DMF) ligand and one-third of a benzene-1,3,5-tricarboxylate (btc) ligand situated on a crystallographic 3 axis. Each ZnIIatom is coordinated by one O atom from a DMF ligand, two O atoms from two btc ligands and three O atoms from three formate ligands in a distorted octahedral geometry. The ZnIIatoms are connected by the formate and btc ligands, forming hexanuclear cores, which are linked by btc ligands, constructing a two-dimensional layered network along theabplane.


2012 ◽  
Vol 68 (4) ◽  
pp. m422-m423 ◽  
Author(s):  
Longfei Wu ◽  
Linxia Huang ◽  
Mouhai Shu

The title compound, [Cu2(NO3)2(OH)2(C12H8N4O)2(H2O)2]n, consists of a neutral polymeric CuIIcomplex in which each CuIIatom has a distorted octahedral geometry defined by a pyridyl N atom from a 3-(pyridin-3-yl)-5-(pyridin-4-yl)-1,2,4-oxadiazole ligand and five O atoms from a water molecule, two nitrates and two hydroxides. Two CuIIions are bridged by two hydroxide anions resulting in a Cu2O2loop, located across an inversion center and connected by the nitrate anions into a broad two-dimensional polymeric structure parallel to (100). In the crystal, there are O—H...O hydrogen bonds between the coodinated water molecule and the nitrate and hydroxide, and between the hydroxide and the nitrate. Intermolecular π–π interactions are present between pyridine rings in adjacent two-dimensional structures, with a centroid–centroid distance of 3.582 (2) Å.


2012 ◽  
Vol 68 (8) ◽  
pp. m1132-m1132
Author(s):  
Jun Wang ◽  
Chuntao Dai ◽  
Jianhua Nie

In the title compound, [Cu(C11H8NO3)(CH3COO)(C10H8N2)]n, the CuIIion is six-coordinated by two N atoms from two 4,4′-bipyridine ligands, four O atoms from one acetate ligand, one 2-(4-oxo-1,4-dihydroquinolin-1-yl)acetate ligand and one water molecule in a distorted octahedral geometry. The 4,4′-bipyridine ligands interconnect [Cu(C11H8NO3)(CH3COO)] units, giving rise to a chain along [010]. These chains are further linked to each other by O—H...O hydrogen bonds, leading to a two-dimensional supramolecular network parallel to (100).


2013 ◽  
Vol 69 (11) ◽  
pp. m577-m578
Author(s):  
Nakeun Ko ◽  
Jaheon Kim

In the title compound, [Cd(C8F4O4)(C2H5OH)2]n, the CdIIcation sits on an inversion centre and is coordinated by six O atoms from four tetrafluorobenzene-1,4-dicarboxylate anions and two ethanol molecules in a distorted octahedral geometry. The anionic ligand is also located on an inversion centre, and connects four CdIIcations, generating a two-dimensional polymeric layer parallel to theabplane. Within the layer, the ethanol molecule links F and O atoms of the nearest anionic ligandsviaO—H...O and O—H...F hydrogen bonds. The ethyl group of the ethanol molecule is disordered over two positions with an occupancy ratio of 0.567 (10):0.433 (10).


2006 ◽  
Vol 62 (4) ◽  
pp. m785-m787 ◽  
Author(s):  
Xin Zhuo ◽  
Zuo-Wei Wang ◽  
Yi-Zhi Li ◽  
He-Gen Zheng

In the molecule of the title compound, [Cd(C8H4O5)(C10H8N2)] n , the Cd atom is coordinated by two N and four O atoms of 2,2′-bipyridine and hydroxyisophthalate ligands, respectively, in a highly distorted octahedral geometry. 5-Hydroxyisophthalate acts as a tetradentate ligand, with one carboxylate group bidentate to one Cd atom and the other carboxylate group bidentate to two further Cd atoms, resulting in the formation of two-dimensional sheets.


2006 ◽  
Vol 62 (4) ◽  
pp. m891-m893 ◽  
Author(s):  
Wen-Jie Lu ◽  
Kai-Long Zhong ◽  
Yi-Min Zhu

In the structure of the title compound, [Cd(SO4)(C12H8N2)2]·C2H6O2, the [Cd(SO4)(C12H8N2)2] and C2H6O2 entities are connected by hydrogen bonding. The formula unit lies on a special position of site symmetry 2. The CdII centre is coordinated by four N atoms from two chelating 1,10-phenanthroline ligands and two O atoms from the bidentate sulfate ligand in a distorted octahedral geometry. The two chelating NCCN groups subtend a dihedral angle of 74.50 (9)°.


2012 ◽  
Vol 68 (6) ◽  
pp. m829-m829
Author(s):  
Lining Yang ◽  
Yanxiang Zhi ◽  
Jiahui Hei ◽  
Yanqing Miao

The asymmetric unit of the title compound, [Mn(C6H6N4)2(H2O)2](C8H4O4), contains one-half each of the centrosymmetric cation and anion. The MnII atom is coordinated by four N atoms [Mn—N = 2.2168 (14) and 2.2407 (14) Å] from two 2,2′-biimidazole ligands and two water molecules [Mn—O = 2.2521 (14) Å] in a distorted octahedral geometry. Intermolecular N—H...O and O—H...O hydrogen bonds consolidate the crystal packing, which also exhibits π–π interactions between five-membered rings, with a centroid–centroid distance of 3.409 (2) Å.


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