Citation: W. Linert et al., SPIN-STATE EQUILIBRIA IN NONAQUEOUS SOLUTION AND QUANTUM-MECHANICAL INVESTIGATIONS OF IRON(II) AND NICKEL(II) COMPLEXES WITH 4-SUBSTITUTED 2,6-BIS(BENZIMIDAZOL-2-YL)PYRIDINES, Journal of the Chemical Society. Dalton transactions, (10), 1994, pp. 1523-1531