Wang Shou-Bin, Tang Kun, Yang Bao-Hua, Li Sheng
Acta Crystallogr Sect E Struct Rep Online. 2008 Mar 14;64(Pt 4):m543. doi: 10.1107/S1600536808003577.
The reported structure is a monoclinic polymorph of the title compound, [Mn(2)(C(16)H(14)N(2)O(2))(2)(NCS)(2)], which has been characterized previously in an ortho-rhom-bic form. Each Mn(III) atom is chelated by a tetra-dentate 2,2'-[ethane-1,2-diylbis(nitrilo-methyl-idyne)]diphenolate ligand and by the N atom of a thio-cyanate anion, in a square-pyramidal arrangement. The complexes form centrosymmetric dimers, with an Mn-O contact of 2.557 (3) Å trans to each thio-cyanate anion, completing a distorted octa-hedral coordination geometry.
所报道的结构是标题化合物[Mn₂(C₁₆H₁₄N₂O₂)₂(NCS)₂]的单斜晶多晶型物,该化合物先前已被表征为正交晶型。每个Mn(III)原子由一个四齿的2,2'-[乙烷-1,2-二基双(亚氨基甲基亚基)]二酚盐配体和一个硫氰酸根阴离子的N原子螯合,呈四方锥排列。这些配合物形成中心对称的二聚体,与每个硫氰酸根阴离子反式的Mn-O接触距离为2.557 (3) Å,形成扭曲的八面体配位几何结构。