Cobalt complexes with 2-[(3-aminopropyl)amino]ethanethiol

Abstract The cobalt complexes with 2-[(3-aminopropyl)amino]ethanethiol (Hapaet), [{Co(apaet) 2 } 2 Co](ClO 4 ) 2 ( 1 ) and [Co(apaet) 2 ]ClO 4 ·CH 3 OH ( 2 ) were synthesized and the trinuclear and mononuclear features were elucidated by the elemental analysis, IR and UV–Vis spectroscopies, and magnetic susceptibility measurement. The X-ray crystal structure shows that 1 has a linear trinuclear structure consisting of octahedral–tetrahedral–octahedral coordination environments and 2 has an octahedral CoN 4 S 2 chromophore with meridional chelation of apaet − .