atic nitrogen atom and/or an atom adjacent to the nitrogen atom forms a ring, said method comprising the steps of: reacting a metal salt having the formula:Mn X'2, wherein M is a metal as defined above and X' is the same as X defined above; with at least one compound selected from the group consisting of L1 OH, L2 OH, L3 OH and mixtures of any of the foregoing, wherein L1, L2 and L3 are the same a