INORGANICA CHIMICA ACTA-[CO(III)(BPB)(AMINE)(2)]X (X = NCS, CLO4). X-RAY CRYSTAL STRUCTURE OF TRANS-[CO(III)(BPB)(PYRROLIDINE)(2)]NCS.0.5H(2)O CONTAINING INTERMOLECULAR N-H CENTER DOT CENTER DOT CENTER DOT O=C HYDROGEN-BONDING