Assey Gervas, Butcher Ray J, Gultneh Yilma
Acta Crystallogr Sect E Struct Rep Online. 2012 Jul 1;68(Pt 7):m962-3. doi: 10.1107/S1600536812027687. Epub 2012 Jun 23.
In the title complex, [Co(C(18)H(18)N(2)O(4))(C(2)H(3)O(2))(H(2)O)]·2CH(3)OH, the Co(III) atom is hexa-coordinated by water and acetate groups in the axial positions and by the tetra-dentate Schiff base occupying equatorial positions. These axial bonds are longer than the equatorial bonds to the tetra-dentate Schiff base. Two mol-ecules form a dimer through strong hydrogen bonds from the coordinated water of one mol-ecule to the meth-oxy O atoms of an adjoining mol-ecule. There is extensive intra- and inter-molecular O-H⋯O hydrogen bonding between the coordinated water and acetate ligands and the methanol solvent mol-ecules. In addition, there are weak inter-molecular C-H⋯O inter-actions, which link the mol-ecules into a three-dimensional array.
在标题配合物[Co(C₁₈H₁₈N₂O₄)(C₂H₃O₂)(H₂O)]·2CH₃OH中,Co(III)原子在轴向位置由水分子和乙酸根离子六配位,在赤道位置由四齿席夫碱配位。这些轴向键长于与四齿席夫碱相连的赤道键。两个分子通过一个分子的配位水分子与相邻分子的甲氧基O原子之间的强氢键形成二聚体。在配位水分子、乙酸根配体和甲醇溶剂分子之间存在广泛的分子内和分子间O—H⋯O氢键。此外,还存在弱的分子间C—H⋯O相互作用,这些相互作用将分子连接成三维阵列。