scholarly journals Crystal structure of bis(acetylacetonato-κ2O,O′)(tetrahydrofuran-κO)(trifluoromethanesulfonato-κO)iron(III)

2015 ◽  
Vol 71 (10) ◽  
pp. 1165-1168
Author(s):  
Casseday P. Richers ◽  
Jeffery A. Bertke ◽  
Thomas B. Rauchfuss

The mononuclear title complex, [Fe(CF3O3S)(C5H7O2)2(C4H8O)] or [Fe(acac)2(OTf)(THF)] (acac = acetylacetonate; OTf = trifluoromethanesulfonate; THF = tetrahydrofuran), (I), consists of one six-coordinate Fe3+atom in a slightly distorted octahedral environment [Fe—O bond-length range = 1.9517 (11)–2.0781 (11) Å]. The triflate ligand was found to be disordered over two sets of sites, with a site-occupancy ratio of 0.622 (16):0.378 (16). Weak intermolecular C—H...O and C—H...F hydrogen-bonding interactions generate a two-dimensional supramolecular structure lying parallel to (100). This is only the second crystal structure reported of a mononuclear bis(acetylacetonato)iron(III) complex.

2007 ◽  
Vol 63 (3) ◽  
pp. m772-m773 ◽  
Author(s):  
Guang Fan ◽  
San-Ping Chen ◽  
Sheng-Li Gao

In the title complex, [Co(C6H5N2O2)2(H2O)2], the Co2+ cation lies on an inversion centre and the coordination geometry is distorted octahedral, with two N atoms and two O atoms from the 5-methylpyrazine-2-carboxylate ligands in the equatorial plane. The two remaining coordination sites are occupied by two water molecules. The crystal structure is stabilized by a network of O—H...O hydrogen-bonding interactions, forming a two-dimensional supramolecular structure.


2007 ◽  
Vol 63 (3) ◽  
pp. m774-m775 ◽  
Author(s):  
Guang Fan ◽  
San-Ping Chen ◽  
Sheng-Li Gao

In the title complex, [Zn(C6H5N2O2)2(H2O)2], the Zn2+ cation lies on an inversion centre and the coordination geometry is distorted octahedral, with two N atoms and two O atoms from the 5-methylpyrazine-2-carboxylate ligand in the equatorial plane. The two remaining coordination sites are occupied by two water molecules. The crystal structure is stabilized by a network of O—H...O hydrogen-bonding interactions, forming a two-dimensional supramolecular structure.


2012 ◽  
Vol 68 (6) ◽  
pp. m809-m810 ◽  
Author(s):  
Chao-Zhu Li ◽  
Xue-Ren Huang

In the title complex, [Ni(C12H9N2O3S)2(H2O)2]·4H2O, the NiII ion is coordinated by four N atoms from two bidentate chelating 4-[(pyridin-2-yl)methylideneamino]benzenesulfonate ligands and two O atoms from cis-related water molecules in a slightly distorted octahedral environment [Ni—N = 2.071 (3)–2.121 (3) Å and Ni—O = 2.071 (2) and 2.073 (3) Å]. In the crystal, the coordinated water molecules and the four water molecules of solvation are involved in intermolecular O—H...O hydrogen-bonding interactions with water and sulfonate O-atom acceptors, giving a three-dimensional framework structure.


2006 ◽  
Vol 62 (7) ◽  
pp. m1540-m1541 ◽  
Author(s):  
Jing Chen ◽  
Yong Lu ◽  
Wen-Shi Wu ◽  
Jin-Cao Dai ◽  
Jian-Ming Lin

In the centrosymmetric title complex, [Mn(C6H3N2O5)2(H2O)2]·2H2O, each MnII ion has a six-coordinate octahedral environment within an O6 donor set. The presence of O—H...O hydrogen-bonding interactions links adjacent molecules into a two-dimensional array.


2006 ◽  
Vol 62 (7) ◽  
pp. m1646-m1648
Author(s):  
Shou-Wu Wang ◽  
Hai-Yan Ge ◽  
Jian-Hu Yang ◽  
Bao-Long Li ◽  
Yong Zhang

In the crystal structure of the title complex, [Mn(C2N3)2(C7H6N2)2] n or [Mn(dca)2(bim)2] n , where dca is dicyanamide and bim is benzimidazole, each MnII atom is located on a center of symmetry and is in a six-coordinated distorted octahedral environment. Four N atoms from four dca ligands fill the equatorial positions, and two N atoms from two bim ligands occupy the axial positions. The dicyanamide ligands adopt an end-to-end coordination mode and link the Mn atoms to form a two-dimensional network.


2012 ◽  
Vol 68 (4) ◽  
pp. m399-m399 ◽  
Author(s):  
Jia Zhou ◽  
Mouhai Shu

In the structure of the title complex, [Ni(CH3CO2)(C14H23N5O)(H2O)]ClO4·H2O, the NiIIcentre has a distorted octahedral environment defined by one O and three N atoms derived from the tetradentate ligand, and two O atoms, one from a water molecule and the other from an acetate anion. The molecules are connected into a three-dimensional architecture by O—H...O hydrogen bonds. The perchlorate anion is disordered over two positions; the major component has a site-occupancy factor of 0.525 (19).


2013 ◽  
Vol 69 (12) ◽  
pp. 1467-1471
Author(s):  
Marietjie Schutte-Smith ◽  
Theunis J. Muller ◽  
Hendrik G. Visser ◽  
Andreas Roodt

The ReIcentres of two ReI–tricarbonyl complexes,viz.tricarbonyl(pyridine-κN){5-[2-(2,4,6-trimethylphenyl)diazen-1-yl]quinolin-8-olato-κ2N1,O}rhenium(I), [Re(C23H21N4O)(CO)3], (I), and {5,7-bis[2-(2-methylphenyl)diazen-1-yl]quinolin-8-olato-κ2N1,O}tricarbonyl(pyridine-κN)rhenium(I), [Re(C28H23N6O)(CO)3], (II), are facially surrounded by three carbonyl ligands, a pyridine ligand and either a 5-[2-(2,4,6-trimethylphenyl)diazen-1-yl]quinolin-8-olate [in (I)] or a 5,7-bis[2-(2-methylphenyl)diazen-1-yl]quinolin-8-olate [in (II)] ligand, in a slightly distorted octahedral environment. The crystal structure of (I) is stabilized by two intermolecular C—H...O interactions and that of (II) is stabilized by three intermolecular C—H...O hydrogen-bonding interactions.


2006 ◽  
Vol 62 (5) ◽  
pp. m1132-m1133 ◽  
Author(s):  
Han-Mao Kuang ◽  
Xi-Rui Zeng ◽  
Yin-Qiu Liu ◽  
Qiu-Yan Luo ◽  
Xiao-Niu Fang

The title complex, [Ni(C10H8N3O2)2]·CH3OH, is a mononuclear nickel(II) compound containing two di-2-pyridylamine N,N′-dioxide (dpa dioxide) ligands that are nearly perpendicular to each other. The NiII ion of the complex has a distorted octahedral environment with the equatorial plane formed by an N atom from each amine group and two O atoms of one ligand, while the axial positions are occupied by two O atoms of the second ligand. In the solid state, hydrogen-bonding interactions are dominant, with solvent molecules also participating in hydrogen bonding.


2012 ◽  
Vol 68 (4) ◽  
pp. m427-m427
Author(s):  
Kun-Miao Wang ◽  
Zhi-Hua Liu ◽  
Qi Zheng ◽  
Chun-Bo Liu ◽  
Ming-Ming Miao

In the title complex, [Mn(N3)2(C8H8N6)2], the complete molecule is generated by the application of twofold symmetry, and is in a distorted octahedral environment, coordinated by four N atoms of two bidentate 6-(pyridin-2-yl)-1,3,5-triazine-2,4-diamine ligands and two N atoms from two azide anions. The two chelated 6-(pyridin-2-yl)-1,3,5-triazine-2,4-diamine ligands form a dihedral angle 74.75 (5)°. The mononuclear molecules are alternatively linked into layers parallel to theacplaneviaN—H...N hydrogen bonds. Adjacent layers are connected into a three-dimensional supramolecular framework by futher N—H...N hydrogen-bonding interactions.


2007 ◽  
Vol 63 (11) ◽  
pp. m2694-m2694 ◽  
Author(s):  
Zhao-Peng Deng ◽  
Shan Gao ◽  
Li-Hua Huo ◽  
Hui Zhao

The CdII atom in the title complex, [Cd(C8H5O3)2(C12H8N2)(H2O)], is coordinated by three O atoms of two formylbenzoate ligands, two N atoms of a 1,10-phenanthroline ligand and one water molecule, giving rise to a trigonal–prismatic coordination geometry. Adjacent complex molecules are linked into a two-dimensional layer structure via hydrogen-bonding interactions.


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