Zampese, J.A.Keene, F.R.Steel, P.J.2007-08-172007-08-172004Zampese, J.A., Keene, F.R., Steel, P.J. (2004) Diastereoisomeric Dinuclear Ruthenium Complexes of 2,5-Di(2-pyridyl)thiazolo[5,4-d]thiazole. Dalton Transactions, 2004, pp. 4124-4129.http://hdl.handle.net/10092/390The first metal complexes of 2,5-di(2-pyridyl)thiazolol[5,4-d]thiazole (5) are described. X-Ray crystal structures are reported for the free ligand 5, a dinuclear copper complex 6 and the two diastereoisomers, 7meso and 7rac, of the dinuclear bis(2,2’-bipyridine)ruthenium complex. The two diastereoisomers of 7 and the 4,4’-dimethyl-2,2’-bipyridine analogue 8 are readily separated by cation exchange chromatography. 1H NMR and visible absorption spectra and electrochemical data for the four dinuclear ruthenium complexes reveal that these have relatively small HOMO-LUMO energy gaps and exhibit relatively weak metal-metal interactions.enJournal ArticleFields of Research::250000 Chemical Sciences::250300 Organic Chemistry::250399 Organic chemistry not elsewhere classified