scholarly journals trans-Diaquabis[(E)-3-(dimethylamino)-1-(2-pyridyl)prop-2-en-1-one-κ2N1,O]cobalt(II) dinitrate dihydrate

2009 ◽  
Vol 65 (6) ◽  
pp. m633-m633 ◽  
Author(s):  
Jian-Hong Bi

In the title compound, [Co(C10H12N2O)2(H2O)2](NO3)2·2H2O, the CoIIion, located on an inversion center, istrans-coordinated by twoN,O-bidentate chelating (E)-3-(dimethylamino)-1-(2-pyridyl)prop-2-en-1-one ligands and by two water molecules in a slightly distorted octahedral geometry. Intermolecular O—H...O hydrogen bonds link the cations, anions and water molecules into layers parallel to theacplane. The crystal packing also exhibits weak intermolecular C—H...O hydrogen bonds.

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.


2013 ◽  
Vol 69 (2) ◽  
pp. m89-m89 ◽  
Author(s):  
Xiao-Hui Deng ◽  
Qi-Jun Nie ◽  
Feng-Juan Zhu

In the title compound, [Ni(C6H12N4O3)2](NO3)2·4H2O, the NiIIcation is located on an inversion center and isN,O,O′-chelated by two nitrilotris(acetamide) molecules in a distorted octahedral geometry. The complex cations, nitrate anions and lattice water molecules are connected by O—H...O and N—H...O hydrogen bonds, forming a three-dimensional supramolecular structure.


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.


2007 ◽  
Vol 63 (3) ◽  
pp. m753-m755 ◽  
Author(s):  
Xu-Liang Nie ◽  
Hui-Liang Wen ◽  
Zi-Sheng Wu ◽  
Da-Bo Liu ◽  
Chong-Bo Liu

In the title compound, [Cd(C6H7N2O5)2], the Cd atom lies on an inversion center and has a slightly distorted octahedral geometry. The equatorial plane contains two bidentate 5-carboxy-2-methyl-1H-imidazole-4-carboxylate monoanionic ligands. Two coordinated water molecules occupy the axial sites. Intermolecular N—H...O hydrogen bonds link the molecules into chains, which are further connected by intermolecular O—H...O hydrogen bonds, resulting in a three-dimensional supramolecular framework.


Author(s):  
Muzzaffar A. Bhat ◽  
Shalini Jain ◽  
Sanjay K. Srivastava ◽  
Ray J. Butcher ◽  
Jan Wikaira

In the title compound, [Na(C7H14NOS2)(H2O)2]n, the NaIcation is coordinated by five O atoms [Na—O = 2.3142 (11)–2.4677 (10) Å] from three aqua and twoN-butyl-N-(2-hydroxyethyl)dithiocarbamate (L) ligands and one S atom [Na—S = 3.0074 (6) Å] from a thirdLligand in a highly distorted octahedral geometry. Two aqua ligands related by an inversion center bridge two NaIcations, and eachLligand coordinates three NaIcations, leading to a layered arrangement aligned parallel to thebcplane. Intermolecular O—H...S hydrogen bonds are observed in the inner part of each polymeric layer; these are packed along theaaxis and held together by weak van der Waals forces.


2009 ◽  
Vol 65 (6) ◽  
pp. m660-m660
Author(s):  
Hui-Juan Lu ◽  
Fang-Ming Wang

In the title compound, [Zn(C8H3NO6)(C10H8N2O2)(H2O)3], the ZnIIion is coordinated in a distorted octahedral geometry by three water molecules, one O atom from a 5-nitrobenzene-1,3-dicarboxylate ligand and two O atoms from a chelating 2,2′-bipyridineN,N′-dioxide ligand. An extensive network of O—H...O hydrogen bonds is formed between the water molecules and the carboxylate groups. C—H...O interactions are also present.


2014 ◽  
Vol 70 (8) ◽  
pp. m296-m297 ◽  
Author(s):  
Leila Ben Haj Hassen ◽  
Khaireddine Ezzayani ◽  
Yoann Rousselin ◽  
Habib Nasri

In the title compound, [Fe(C44H24Cl4N4)(H2O)2](SO3CF3)·C8H8O3·2H2O, the FeIIIcation is chelated by the four N atoms of the deprotonated tetrakis(4-chlorotetraphenyl)porphyrin (TClPP) and further coordinated by two water molecules in a distorted octahedral geometry. In the crystal, the cations, anions, 4-hydroxy-3-methoxybenzaldehyde and water molecules of crystallization are linked by classical O—H...O hydrogen bonds and weak C—H...O and C—H...Cl hydrogen bonds into a three-dimensional supramolecular architecture. The crystal packing is further stabilized by weak C—H...π interactions involving pyrrole and benzene rings. π–π stacking between parallel benzene rings of adjacent 4-hydroxy-3-methoxybenzaldehyde molecules is also observed, the centroid–centroid distance being 3.8003 (13) Å. The three F atoms of the anion are disordered over two sets of sites, with a refined occupancy ratio 0.527 (12):0.473 (12). The O atom of one water molecule of crystallization is also disordered over two positions in an occupancy ratio of 0.68 (5):0.32 (5).


2007 ◽  
Vol 63 (11) ◽  
pp. m2639-m2639 ◽  
Author(s):  
Jordan O. Lerach ◽  
Matthias Zeller ◽  
Brian D. Leskiw

The Co atom of the title compound, [Co(C8H10F3O2)2(CH3OH)2], which is located on a crystallographic inversion center, exhibits a distorted octahedral geometry. The bidentate acetylacetonate-like ligands are in a trans arrangement. The plane through the acetylacetonate unit is tilted with respect to the CoO4 plane by 17.41 (7)°, which is in the same range as observed for similar Co(acac)2OR 2 derivatives. Via the methanol hydroxy groups, each molecule participates in two pairs of intermolecular hydrogen bonds that create a network of hydrogen-bonded chains along the direction of the a axis.


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.


2007 ◽  
Vol 63 (3) ◽  
pp. m650-m651 ◽  
Author(s):  
Liang Ding ◽  
Jun-Hui Zuo ◽  
Chong-Bo Liu ◽  
Rui-Hong Deng ◽  
Hui-Liang Wen

In the title compound, [Co(C10H7NO2)2(H2O)2], the CoII ion lies on an inversion centre. It has a distorted octahedral geometry and is coordinated by two N,O-bidentate 5-phenyl-1H-pyrazole-3-carboxylate ligands and two water molecules. Intermolecular O—H...O and N—H...O hydrogen bonds link molecules into layers parallel to the (010) plane.


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