Transition metal promoted addition of methanol to cyanoguanidine. Molecular structure and properties of the generated copper(II) and nickel(II) complexes - Williams, Patricia A. M.; Ferrer, Evelina G.; Baeza, Natalia; Piro, Oscar E.; Castellano, Eduardo Ernesto; Baran, Enrique J. (Zeitschrift für Anorganische Allgemeine Chemie, 2005)