A new homochiral tripodal ligand -(S)-(-)-(alpha)-methylbenzylcarbomoy
lmethyl)amine (H(3)1(S-mbz)) is reported, along with the preparation a
nd structural characterization of two metal complexes K[Zn1(S-mbz)] an
d K[Fe1(S-mbz)(NO)]. Significant changes in cavity structure are obser
ved upon binding external ligands.