Pure Appl. Chem., 1998, Vol. 70, No. 4, pp. 961-968
doi:10.1351/pac199870040961
Complexes of lopsided N-donor heterocyclic bioligands: Has the electrostatic effect of the N2CH proton been overlooked in metallobiochemistry?
L.G. Marzilli, P.A. Marzilli and E. Alessio