mu-Acetato-aqua-mu-(5-bromo-2-{1,3-bis[2-(5-bromo-2-oxidobenzylideneamin o)ethyl]imidazolidin-2-yl}phenolato)methanoldinickel(II)methanol disolvate monohydrate

作者：Khan Ahmed Raza; Tesema Yohannes; Butcher Ray J^*; Gultneh Yilma

来源：Acta Crystallographica Section E-Structure Reports Online, 2011, 67: M1381-U793.

DOI：10.1107/S1600536811035409

The crystal structure of the title compound, [Ni-2(C27H24Br3N4O3)( CH3CO2)(CH3OH)(H2O)]center dot 2CH(3)OH center dot H2O contains [L(OAc){(CH3OH)Ni}{(H2O) Ni}] molecules {H3L = 2-(5-bromo- 2-hydroxyphenyl)-1,3-bis[4-(5-bromo-2-hydroxyphenyl)- 3-azabut-3-enyl]-1,3-imidazolidine} with additional water and two methanol solvent molecules. In this instance, one of the two Ni atoms is coordinated to a water and the other to a methanol molecule. The Ni-O and Ni-N distances, as well as the angles about the metal atoms, show quite regular octahedra around the central ions. The Ni-O-phenol-Ni and Ni-O-acetate-Ni angles are not similar [95.26 (13) and 97.34 (13)degrees, respectively], indicating that this subtle solvate exchange induces significant differences in the conformation adopted. The coordinated methanol ligand is involved in an intramolecular hydrogen bond to the uncoordinated O atom of the bridging acetate ligand, while the coordinated water molecule forms a hydrogen bond with the one of the methanol solvent molecules. The water solvent molecule forms strong hydrogen bonds to both phenolate O atoms. The remaining methanol solvent molecule also forms a hydrogen bond with this solvent water molecule.

• 出版日期2011-10