Heteroleptic Co(III) bisdithiocarbamato-dithione complexes: Synthesis, structure and bonding of [Co(Et<sub>2</sub>dtc)<sub>2</sub>(R<sub>2</sub>pipdt)]BF<sub>4</sub> (R = Me, 1; Ph, 2; pipdt = piperazin-2,3-dithione) complexes
Journal of coordination chemistry