Cis/trans-isomerism of complexes RuCl2(S-dmso)tpy), tpy = terpyridine ligand. Zeitschrift fuer Anorganische und Allgemeine Chemie, (631)2-3:491--495, 2005. [PUMA: DMSO crystal complex;ruthenium complex complex;electrochem redox cis structure ruthenium trans terpyridine chloro isomerism prepn]