Circular Dichroism Spectra of Unsym-cis(O) Isomers of ( l -Alaninate-N-monoacetato) (diethylenetriamine)cobalt(III) Complexes

A couple of diastereomers, ΔΔΛ-R(N)–l(C) and ΔΛΛ-R(N)–l(C), of unsym-cis(O)-(l-alaninate-N-monoacetato)(diethylenetriamine)cobalt(III)(1+) complex was prepared and characterized from the circular dichroism spectra, which presented an example for the additivity between the circular dichroism contributions due to the configurational (ΔΔΛ and ΔΛΛ) and the vicinal (R(N)+l(C)) chiralities.