Ayikoe Kouassi, Butcher Ray J, Gultneh Yilma
Department of Chemistry, Howard University, 525 College Street NW, Washington, DC 20059, USA.
Acta Crystallogr Sect E Struct Rep Online. 2010 Oct 31;66(Pt 11):m1487-8. doi: 10.1107/S1600536810043497.
The molecule of the title compound, [Ni(4)(CH(3)O)(4)(C(8)H(7)O(3))(4)(CH(3)OH)(4)], has S(4) symmetry. Each of the four Ni(II) atoms occupies every other corner of a cube, with the alternate corners occupied by μ(3)-methano-late bridging groups linking to three Ni(II) atoms. Each Ni(II) atom is in an O(6) octa-hedral coordination environment formed by three O atoms from three μ(3)-methano-late groups, one from methanol, and two others from a bidentate 2-formyl-6-meth-oxy-phenolate ligand. The Ni-O bond distances range from 2.0020 (14) to 2.0938 (14) Å, the cis bond angles range from 81.74 (6) to 97.63°, and the trans bond angles range from 168.76 (5) to 175.22 (6)°. There are bifurcated hydrogen-bonding inter-actions between the coordinated methanol OH groups and both the phenolic and meth-oxy O atoms of an adjoining 2-formyl-6-meth-oxy-phenolate moiety. In addition, there are weak inter-molecular C-H⋯O inter-actions involving the meth-oxy O atoms.
标题化合物[Ni₄(CH₃O)₄(C₈H₇O₃)₄(CH₃OH)₄]的分子具有S₄对称性。四个Ni(II)原子中的每一个占据一个立方体每隔一个的角，交替的角由连接到三个Ni(II)原子的μ₃-甲氧基桥连基团占据。每个Ni(II)原子处于一个O₆八面体配位环境中，该环境由来自三个μ₃-甲氧基基团的三个O原子、一个来自甲醇的O原子以及来自双齿2-甲酰基-6-甲氧基苯酚配体的另外两个O原子形成。Ni - O键长范围为2.0020 (14)至2.0938 (14) Å，顺式键角范围为81.74 (6)至97.63°，反式键角范围为168.76 (5)至175.22 (6)°。配位甲醇的OH基团与相邻的2-甲酰基-6-甲氧基苯酚部分的酚羟基和甲氧基O原子之间存在分叉的氢键相互作用。此外，还存在涉及甲氧基O原子的弱分子间C - H⋯O相互作用。
