The Formation and Stereochemistry of [CoIII3(l-cys-N,S)n(aet)6−n]3−n Type S-Bridged Complexes (n=0–6, l-cys=l-cysteinate, and aet=2-aminoethanethiolate)

Abstract
Three kinds of S-bridged trinuclear complexes, ΔLLLΔLLL-[Co3(L-cys-N,S)6]3−, ΔLLLΔ- and ΔLLLΛ-[Co3(L-cys-N,S)3(aet)3]0, and [Co3(aet)6]3+, were formed by the reaction of a mixture of ΔLLL-fac-[Co(L-cys-N,S)3]3− (L-cys=L-cysteinate) and fac-[Co(aet)3] (aet=2-aminoethanethiolate) with [CoCl(NH3)5]2+. The reaction with an excess amount of Co2+ led to the formation of seven kinds of S-bridged complexes, [Co3(L-cys-N,S)n(aet)6−n]3−n](n=0–6).

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