scholarly journals Bis(2,2′,2′′-nitrilotriacetamide-κ3O,N,O′)nickel(II) dinitrate tetrahydrate

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.

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.


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.


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 (6) ◽  
pp. m824-m825 ◽  
Author(s):  
Ichraf Chérif ◽  
Jawher Abdelhak ◽  
Mohamed Faouzi Zid ◽  
Ahmed Driss

In the crystal structure of the title compound, (C5H6ClN2)[Cr(C2O4)2(H2O)2]·1.5H2O, the CrIII atom adopts a distorted octahedral geometry being coordinated by two O atoms of two cis water molecules and four O atoms from two chelating oxalate dianions. The cis-diaquadioxalatochromate(III) anions, 2-amino-5-chloropyridinium cations and uncoordinated water molecules are linked into a three-dimensional supramolecular array by O—H...O and N—H...O hydrogen-bonding interactions. One of the two independent lattice water molecules is situated on a twofold rotation axis.


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.


2012 ◽  
Vol 68 (4) ◽  
pp. m396-m397
Author(s):  
Guo-Ming Wang ◽  
Zeng-Xin Li ◽  
Pei Wang

In the title compound, [Cd(C2H8N2)3](GeF6), the CdIIatom, lying on a 32 symmetry site, is coordinated by six N atoms from three ethylenediamine (en) ligands in a distorted octahedral geometry. The Ge atom also lies on a 32 symmetry site and is coordinated by six F atoms. The en ligand has a twofold rotation axis passing through the mid-point of the C—C bond. The F atom is disordered over two sites with equal occupancy factors. In the crystal, the [Cd(en)3]2+cations and [GeF6]2−anions are connected through N—H...F hydrogen bonds, forming a three-dimensional supramolecular network.


2012 ◽  
Vol 68 (4) ◽  
pp. m413-m414 ◽  
Author(s):  
Xin Wang ◽  
Shi-Wei Yan ◽  
Suo-Cheng Chang ◽  
Yan-Chen Liang ◽  
Fu-Tian Zhang

In the title compound, [Mn(C10H7N6)2(H2O)4]·2H2O, the complex unit comprises an Mn2+ion, coordinated by two imidazole N atoms fromcis-related monodentate 5-[4-(imidazol-1-yl)phenyl]tetrazolide ligands and four water molecules, together with two water molecules of solvation. The Mn2+ion lies on a twofold rotation axis and has a slightly distorted octahedral geometry. The molecules are connected by O—H...N and O—H...O hydrogen bonds involving both coordinated and solvent water molecules, generating a three-dimensional structure. Two C atoms of the imidazole ring of the ligand are each disordered over two sites with occupancy factors of 0.75 and 0.25.


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 (7) ◽  
pp. m1611-m1612 ◽  
Author(s):  
Hong-Ping Xiao

In the title compound, [Zn(C7H4O5S)(C13H14N2)(H2O)2]·C3H7NO, the ZnII atom is coordinated by two N atoms from two 1,3-di-4-pyridylpropane molecules, two O atoms from one 2-sulfonatobenzoate dianion and two aqua O atoms, in a distorted octahedral geometry. The 2-sulfonatobenzoate dianions function as chelating ligands and the 1,3-di-4-pyridylpropane as a μ2-bridging ligand, forming a chain. O—H...O hydrogen bonds link neighbouring chains into a three-dimensional network.


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.


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