The hydrogen bonded polymer structures of [{Mn(2-mbiH)2·TMEDA}·A–A]∞ [2-mbiH2 = 2-mercaptobenzimidazole; A–A = TMEDA (Me2NCH2CH2NMe2) or DABCO (N{CH2CH2}3N)

Abstract

The reaction of [MnCp2] with 2-mbiH2 (1:2 equiv.) in the presence of TMEDA gives [{Mn(2-mbiH)2·TMEDA}·TMEDA]∞1. A similar reaction employing TMEDA and DABCO (1:1 equiv.) yields [{Mn(2-mbiH)2·TMEDA}·DABCO]∞2. In the crystal, both complexes adopt similar polymeric structures in which the bifunctional [Mn(2-mbiH)2·TMEDA] units are associated by hydrogen bonds to lattice-bound TMEDA or DABCO ligands. The structural motif adopted by both complexes can be regarded as resultingfrom a fusion of separate helical elements.