The molar heat capacity and the standard (
p 0 = 0.1 MPa) molar enthalpies of formation of the crystalline of
bis(glycinate)lead(II), Pb(gly)
2;
bis(
dl-alaninate)lead(II), Pb(
dl-ala)
2;
bis(
dl-valinate)lead(II), Pb(
dl-val)
2;
bis(
dl-valinate)cadmium(II), Cd(
dl-val)
2 and
bis(
dl-valinate)zinc(II), Zn(
dl-val)
2, were determined, at
T = 298.15 K, by differential scanning calorimetry, and high precision solution-reaction calorimetry, respectively. The standard molar enthalpies of formation of the complexes in the gaseous state, the mean molar metal–ligand dissociation enthalpies, M(II)–amino acid,
( langle D_{text{m}} rangle )(M–L), were derived and compared with analogous copper(II)–ligand and nickel(II)–ligand.θθ
