Magnetism in a helicate complexes arising with the tetradentate ligand

초록

The synthesis of [M(dimphen)(NCS)(2)] (1; M = Fe-II), (2; M = Co-II), (3; M = Mn-II) and [Fe(dimphen)(NCSe)(2)] (4), where dimphen = [1,2-bis(9-methyl-1,10-phenanthrolin-2-yl)ethane], are reported. The crystal packing structures of 1-3, show intermolecular pi-pi stacking and NCSSCN interactions. The complex 1 shows ferromagnetic interaction, and the complex 2 displays single-molecular magnet behaviour.