Citation: Jos\'e Carranza; Conor Brennan; Jorunn Sletten; Juan Modesto Clemente-Juan; Francesc Lloret; Miguel Julve (2003). Crystal Structures and Magnetic Properties of 2,3,5,6-Tetrakis(2-pyridyl)pyrazine (tppz)-Containing Copper(II) Complexes. Inorganic Chemistry, 42, pp. 8716-8727.