Novel Complexes [M(DMF)_6][Mo_6Br_8(NCS)_6] (M = Mn~(2+), Co~(2+), Ni~(2+), Cu~(2+), Cd~(2+)): Synthesis, Structure Determination, and Properties

摘要

A series of novel complexes [M(DMF)_6][Mo_6Br_8(NCS)_6] (M = Mn~(2+), Co~(2+), Ni~(2+), Cu~(2+), and Cd~(2+)) was synthesized. Compounds with M = Co and Mn were examined using X-ray diffraction analysis and found to be isostructural. A cobalt-containing complex was used to illustrate their essential structural features. The NCS ligands are coordinated through the nitrogen atom. The IR specta of all the compounds obtained correlate well with the X-ray diffraction data. When heated, the complexes release all of their DMF molecules to give MMo_6Br_8(NCS)_6 salts (TGA data). The magnetic properties of the compounds indicate a weak interaction between the paramagnetic cations.