A manganese(II) 4-hydroxycinnamate complex with the tripod ligand tris(2-benzimidazolylmethyl)amine

作者：Wu Huilu^*; Ying Wei; Yuan Jingkun; Ding Jian

来源：Zeitschrift fur Naturforschung Section B-A Journal of Chemical Sciences, 2008, 63(1): 11-15.

• crystal structure
• cylic voltammetry
• EPR
• manganese(II) complex
• tris(2-benzimidazylmethyl)amine

A six-coordinate manganese (11) complex with the tripod ligand tris(2-benzimidazolylmethyl)amine (ntb), with composition [Mn(ntb) (4-hydroxycinnamate)](4-hydroxycinnamate) (DMF)0.5 center dot(H2O)(3), was synthesized and characterized by elemental and thermal analyses, electrical conductivity, IR, and UV/vis spectral measurements. The crystal structure of the complex has been determined by the single-crystal X-ray diffraction. The Mn (11) cation is bonded to an nth ligand and a 4-hydroxycinnamate ligand through four N atoms and two 0 atoms, giving a distorted octahedral coordination geometry. Cyclic voltammograms of the complex indicate a quasi-reversible Mn3+/Mn2+ couple. The X-band EPR spectrum of the complex exhibits a six-line manganese hyperfine splitting pattern with g = 2, A = 95, and confirms that the material is high-spin Mn(II).

• 出版日期2008-1
• 单位兰州大学; 兰州交通大学