Etude rpe du glycylglycinate de cuivre II trihydrate: Calcul des valeurs de g moleculaires de monocristaux a quatre molecules non equivalentes par maille

Molecular g values for glycylglycinatocopper(II) trihydrate are determined from crystalline g values. The calculation method used is a generalization of Hathaway's formulae (see Refs. 1, 2]). A d_x²?_y² ground state is suggested on the basis of the molecular g values (g_x = 2.086, g_y = 2.001, g_z = 2.276) and of the orientations of the principal axes. This is an usual situation for the Cu II ion in approximately square-pyramidal stereochemistry.