catena-Poly[[aqua(4,4′-bipyridine-κ2 N,N′)cobalt(II)]-μ-3-(4-carboxylatophenoxy)propionato-κ3 O:O′,O′′]

2007 ◽  
Vol 63 (11) ◽  
pp. m2852-m2852
Author(s):  
Li-Li Kong ◽  
Shan Gao ◽  
Li-Hua Huo ◽  
Seik Weng Ng

In the crystal structure of the polymeric title compound, [Co(C10H8O5)(C10H8N2)(H2O)] n , the CoII atom is O,O′-chelated by the aromatic carboxylate end of the 3-(4-carboxylatophenoxy)propionate dianion, and is covalently bonded (through one O atom) by the aliphatic carboxylate end of another dianion; it is also coordinated by a water molecule to give an octahedral coordination environment. The compound adopts a helical chain structure that propagates along the c axis of the orthorhombic unit cell. The coordinated water molecule engages in both intrachain and interchain hydrogen bonding; the interchain hydrogen bonds result in a honeycomb motif. The crystal structure is an inversion twin and the ratio of the two twin components refined to 0.47 (2):0.53 (2).

2007 ◽  
Vol 63 (11) ◽  
pp. m2851-m2851
Author(s):  
Li-Li Kong ◽  
Shan Gao ◽  
Li-Hua Huo ◽  
Seik Weng Ng

In the crystal structure of the polymeric title compound, [Mn(C10H8N2)(C10H8O5)(H2O)] n , the MnII atom is O,O′-chelated by the aromatic carboxylate end of the 3-(4-carboxylatophenoxy)propionate dianion and is covalently bonded (through one O atom) by the aliphatic carboxylate end of another dianion; it is also coordinated by a water molecule. The compound adopts a helical chain structure that propagates along the c axis of the orthorhombic unit cell. The coordinated water molecule engages in both intrachain and interchain hydrogen bonding; the interchain hydrogen bonds result in a honeycomb motif. The compound crystallizes as a 0.36:0.64 inversion twin.


2007 ◽  
Vol 63 (11) ◽  
pp. m2830-m2830
Author(s):  
Shun-Li Li ◽  
Guang-Ju Ping ◽  
Jian-Fang Ma

In the title compound, [Sn(C6H5)3Cl(H2O)]·C14H12N4, Ph3SnCl(H2O) and 2-[1-(4-pyridylmethyl)-1H-imidazol-2-yl]pyridine molecules cocrystallize in the same structure. Each Sn atom displays a distorted trigonal–bipyramidal geometry composed of three phenyl groups, one Cl− ion and one coordinated water molecule, which links, via hydrogen bonding, the Ph3SnCl(H2O) molecule to the cocrystallized 2-[1-(4-pyridylmethyl)-1H-imidazol-2-yl]pyridine molecule to generate an infinite chain structure.


Author(s):  
Alejandro Hernandez ◽  
Indranil Chakraborty ◽  
Gabriela Ortega ◽  
Christopher J. Dares

The title compound, [UO2(acac)2(H2O)] consists of a uranyl(VI) unit ([O=U=O]2+) coordinated to two monoanionic acetylacetonate (acac, C5H7O2) ligands and one water molecule. The asymmetric unit includes a one-half of a uranium atom, one oxido ion, one-half of a water molecule and one acac ligand. The coordination about the uranium atom is distorted pentagonal–bipyramidal. The acac ligands and Ow atom comprise the equatorial plane, while the uranyl O atoms occupy the axial positions. Intermolecular hydrogen bonding between complexes results in the formation of two-dimensional hexagonal void channels along the c-axis direction with a diameter of 6.7 Å. The monoclinic (P21/c space group) polymorph was reported by Alcock & Flanders [(1987). Acta Cryst. C43, 1480–1483].


Author(s):  
Bernhard Eberhard Christian Bugenhagen ◽  
Marc Heinrich Prosenc

The structure of the title compound, [Cu4(CH3O)4(C11H13O2)4], consists of dimeric dinuclear copper(II) complexes oriented around a centre of inversion. Within each dinuclear fragment, the two CuIIatoms are in a distorted square-planar coordination sphere. Two neighbouring fragments are linked by four apical Cu—O contacts, yielding an overall square-pyramidal coordination environment for each of the four CuIIatoms. The molecules are arranged in layers parallel to (101). Non-classical C—H...O hydrogen-bonding interactions are observed between the layers.


2013 ◽  
Vol 69 (11) ◽  
pp. m598-m599
Author(s):  
Sandra Bruda ◽  
Mark M. Turnbull ◽  
Jan L. Wikaira

The title compound, [Cu(C12H8N3O2)(N3)(H2O)], was formed by the air oxidation of 2-(aminomethyl)pyridine in 95% ethanol in the presence of copper(II) nitrate and sodium azide with condensation of the resulting picolinamide molecules to generate the imide moiety. The CuIIion has a square-pyramidal coordination sphere, the basal plane being occupied by four N atoms [two pyridine (py) N atoms, the imide N atom and an azide N atom] in a nearly planar array [mean deviation = 0.048 (6) Å] with the CuIIion displaced slightly from the plane [0.167 (5) Å] toward the fifth ligand. The apical position is occupied by a coordinating water molecule [Cu—O = 2.319 (4) Å]. The crystal structure is stabilized by hydrogen-bonding interactions between the water molecules and carbonyl O atoms. The inversion-related square-pyramidal complex molecules pack base-to-base with long Cu...Npycontact distances of 3.537 (9) Å, preventing coordination of a sixth ligand.


1974 ◽  
Vol 29 (1-2) ◽  
pp. 10-12 ◽  
Author(s):  
Horst Sabrowsky ◽  
Welf Bronger ◽  
Dieter Schmitz

The ternary oxide K2PdO2 has been prepared by a reaction between K2O and PdO. X-ray investigations suggest a chain-structure-type which corresponds to that of K2PtS2. The planar oxygen coordinations of the palladium atoms are connected laterally in one dimension. The orthorhombic unit cell (a = 8.523, b = 6.089, c = 3.119 Å) contains two formula units.


2007 ◽  
Vol 63 (3) ◽  
pp. o1173-o1175
Author(s):  
Stephanie M. Witko ◽  
Mark Davison ◽  
Hugh W. Thompson ◽  
Roger A. Lalancette

In the title crystal structure, C9H14O3·H2O, the water molecule accepts a hydrogen bond from the carboxyl group [O...O = 2.6004 (13) Å and O—H...O = 163°], while donating hydrogen bonds to the ketone [O...O = 2.8193 (14) Å and O—H...O = 178 (2)°] and the acid carbonyl groups [O...O = 2.8010 (14) Å and O—H...O = 174 (2)°]. This creates a network of hydrogen bonds confined within a continuous flat ribbon two molecules in width and extending in the [101] direction.


2013 ◽  
Vol 68 (4) ◽  
pp. 345-350 ◽  
Author(s):  
Chun-Jing Zhang ◽  
Rui Fang ◽  
Yan Yu ◽  
Hai-Jun Pang ◽  
Hui-Yuan Ma ◽  
...  

A new Lindqvist polyoxometalate-based hybrid compound with a helical chain structure, [Cu(bipy)2][W6O19] (1), (bipy = 2;20`-bipyridine), has been hydrothermally synthesized and characterized by elemental analysis, infrared spectroscopy, thermogravimetry, and single-crystal X-ray diffraction. The compound crystallizes in the space group C2/c of the monoclinic system. In 1, the [W6O19]2- anions are connected alternately with [Cu(bipy)2]2+ subunits to form a meso-helical chain. To our knowledge, this structure represents the first example of a helical chain structure consisting of the hexatungstate anion [W6O19]2-. The electrochemical properties of the title compound have been studied.


2007 ◽  
Vol 63 (11) ◽  
pp. m2657-m2658 ◽  
Author(s):  
Yu-Lin Lo ◽  
Wen-Chieh Wang ◽  
Gon-Ann Lee ◽  
Yen-Hsiang Liu

The title compound, [Co2(C9H4N2O4)2(H2O)8]·5H2O, contains two CoII ions that are bridged by two 1H-benzimidazole-5,6-dicarboxylate ligands to form an M 2 L 2 type complex (M = metal and L = ligand). There are two crystallographically distinct M 2 L 2 units, each on an inversion centre, along with coordinated and uncoordinated water molecules, in the asymmetric unit. The CoII ions are octahedral. Extensive hydrogen bonding exists between the complex and water molecules, and this helps to stabilize the crystal structure. One water molecule is disordered over two sites with occupancies 0.84:0.16.


Author(s):  
Barry L. Westcott ◽  
Guy Crundwell ◽  
Nilda L. Alicea-Velázquez

The crystal structure of the title compound, [Ni(C13H11N2O2)(H2O)4]Br3·2H2O, contains an octahedral NiII atom coordinated to the enol form of 1,3-dipyridylpropane-1,3-dione (dppo) and four water molecules. Both pyridyl rings on the ligand are protonated, forming pyridinium rings and creating an overall ligand charge of +1. The protonated nitrogen-containing rings are involved in hydrogen-bonding interactions with neighoring bromide anions. There are many additional hydrogen-bonding interactions involving coordinated water molecules on the NiII atom, bromide anions and hydration water molecules.


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