A novel bridged asymmetric binuclear manganese(II) complex with DTPB [DTPB is 1,1,4,7,7-pentakis(1H-benzimidazol-2-ylmethyl)-1,4,7-triazaheptane]

Xu-Xiu Yan; Li-Ping Lu; Miao-Li Zhu

doi:10.1107/S0108270104007668

A novel bridged asymmetric binuclear manganese(II) complex with DTPB [DTPB is 1,1,4,7,7-pentakis(1H-benzimidazol-2-ylmethyl)-1,4,7-triazaheptane]

Acta Crystallogr C. 2004 May;60(Pt 5):m221-3. doi: 10.1107/S0108270104007668. Epub 2004 Apr 30.

Authors

Xu-Xiu Yan¹, Li-Ping Lu, Miao-Li Zhu

Affiliation

¹ Institute of Molecular Science, Chemical Biology and Molecular Engineering Laboratory of the Education Ministry, Shanxi University, Taiyuan, Shanxi 030006, People's Republic of China.

PMID: 15131371
DOI: 10.1107/S0108270104007668

Abstract

The crystal structure of the title compound, tetrachloro[micro-1,1,4,7,7-pentakis(1H-benzimidazol-2-ylmethyl)-1,4,7-triazaheptane]dimanganese(II) methanol pentasolvate tetrahydrate, [Mn(2)Cl(4)(C(44)H(43)N(13))].5CH(4)O.4H(2)O, contains an asymmetric dinuclear Mn(II)-DTPB [DTPB is 1,1,4,7,7-pentakis(1H-benzimidazol-2-ylmethyl)-1,4,7-triazaheptane] complex with an intra-ligand bridging group (-NCH(2)CH(2)N-), as well as several solvate molecules (methanol and water). Both Mn(II) cations have similar distorted octahedral coordination geometries. One Mn(II) cation is coordinated by a Cl(-) anion and five N atoms from the ligand, and the other is coordinated by three Cl(-) anions and three N atoms of the same ligand. The Mn.Mn distance is 7.94 A. A Cl.H-O.H-O.H-N hydrogen-bond chain is also observed, connecting the two parts of the complex.