trans-Dimethanolbis(1,1,1-trifluoro-5,5-dimethylhexane-2,4-dionato)cobalt(II)

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.

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.


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.


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.


2006 ◽  
Vol 62 (4) ◽  
pp. m887-m888
Author(s):  
Lu-Tong Yuan ◽  
Zuo-Xiang Wang ◽  
An-Yu Zhou ◽  
Chun-Yi Liu ◽  
Xiao-Yong Chou

In the title compound, (C4H7N2)2[Mn(C7H4O3)2(C4H6N2)2] [Mn(C7H4O3)2(CH4O)2]·2CH4O, there are two independent MnIII ions, each located on an inversion center. The two MnIII ions assume a distorted octahedral geometry and the complex anions are hydrogen bonded with free methylimidazolium cations and solvent methanol molecules.


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 (4) ◽  
pp. m516-m516
Author(s):  
Sadif A. Shirvan ◽  
Sara Haydari Dezfuli

In the title compound, [HgCl2(C6H5NO2)2]n, the HgIIcation is located on an inversion center and is six-coordinated in a distorted octahedral geometry by two N atoms from two pyridine-3-carboxylic acid molecules and four bridging Cl−anions. The bridging function of the Cl−anions leads to polymeric chains running along theaaxis. One Hg—Cl bond is much longer than the other. In the crystal, O—H...O and weak C—H...Cl hydrogen bonds are observed.


Author(s):  
Dohyun Moon ◽  
Jong-Ha Choi

The structure of the title compound, (NH4)[Cr(pydc)2] (pydc is pyridine-2,6-dicarboxylate, C7H3NO4), has been determined from synchrotron data. The CrIIIion and the N atom of the ammonium cation are located on a crystallographic fourfold rotoinversion axis (-4). The CrIIIcation is coordinated by four O atoms and the two N atoms of two meridional pydc ligands, displaying a distorted octahedral geometry. The Cr—N and Cr—O bond lengths are 1.9727 (15) and 1.9889 (9) Å, respectively. The crystal structure is stabilized by intermolecular hydrogen bonds involving the N–H groups of the ammonium cation and pyridine C–H groups as donors and the non-coordinating carbonyl O atoms as acceptors.


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.


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