Complexation of rhodium (II) dimeric tetraacylates: tetraacetate Rh2AcO4, tetratrifluoroacetate Rh2TFA4, and (S)-Mosher's acid salt Rh2MTPA4 with both enantiomerically pure and racemic methionine and its derivatives: hydrochloric salt of methionine, hydrochloric salt of methionine methyl ester, N-formyl methionine, N-phthaloyl methionine, N-phthaloyl methyl ester of methionine, and methyl ester of N, N- ...