Metal carboxylate complexes of L-3-phenyl-2-(3-phenyl-ureido)-propionic acid

The L-3-phenyl-2-(3-phenyl-ureido)-propionic acid (LH) has syn-syn conformation around urea group and has R12(6) hydrogen bonding pattern. The urea part of the ligand in its sodium complex [NaL(H2O)3]2 adopts an anti-syn conformation. The corresponding carboxylato bridged polymeric cadmium and manganese complexes of L, [ML2(H2O)2]n where M = Cd and Mn have syn-syn conformation on urea part.