Stereospecific π-π stacking interactions between pseudo-enantiomeric sulfur-bridged dinuclear Co(III)-Pd(II) and Co(III)-Pt(II) complexes of optically active penicillaminates

Assemblies between pseudo-enantiomeric sulfur-bridged dinuclear Co(III)-Pd(II) and Co(III)-Pt(II) complexes of optically active penicillaminates have been examined by means of single crystal X-ray diffraction analyses, electronic absorption and CD spectra. These pseudo-enantiomeric complexes show stereospecific intermolecular π-π stacking interactions.