Premium
Synthesis and crystallographic characterization of a seven‐coordinate Mn(II) complex
Author(s) -
Chen Huating,
Deng Dongsheng,
Miao Shaobin,
Ji Baoming
Publication year - 2008
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.200711088
Subject(s) - monoclinic crystal system , crystallography , chemistry , supramolecular chemistry , octahedron , crystal structure , picrate , molecule , hydrogen bond , infrared spectroscopy , x ray crystallography , stereochemistry , diffraction , organic chemistry , ion , physics , optics
Abstract A seven‐coordinate Mn(II) complex of N , N , N ′, N ′‐tetrakis[(2‐benzimidazolyl)methyl]‐1,2‐cyclohexanediamine ( CDTB ), namely, [Mn(CDTB)(DMF)](Pic) 2 ·C 2 H 5 OH was synthesized and characterized by elemental analyses, IR spectra and X‐ray single‐crystal diffraction. The complex crystallizes in a typical hybrid organic‐inorganic pattern. The crystal belongs to the monoclinic system, space group P 2 (1) / n with cell constants a = 13.3343(6) Å, b = 33.7015(16) Å, c = 13.7286(6) Å, β = 108.9990(10)°, Z = 4. The structure was solved by direct methods and refined to R = 0.0561 ( wR 2 = 0.1172). The structure analysis reveals that the Mn(II) has a capped octahedron geometry with seven‐coordination mode, furthermore, the [Mn(CDTB)(DMF)] 2+ building blocks were extended into well‐ordered supramolecular networks by complementary hydrogen bonds, and the linkers of the ethanol molecules and the picrate anions play an important role in the self‐assembly process. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)