Synthesis and X-ray structure of L-histidinyl-D-penicillaminatocobalt(III) and L-histidinyl-D-penicillaminatochromium(III)

Abstract

Reaction of [M(L-his)₂](MCo,Cr;hishistidyl) with D- or DL-penicillamine (pen) gives the octahedral complexes [M(L-his)(D-pen)], while reaction of [Co(L-his)-(D-his)] with DL-penicillamine gives [Co(L-his)(D-pen)] and [Co(D-his)(L-pen)]; but under mild conditions [M(L-his)(L-pen)] and [M(D-his)(D-pen)] are not obtained.