Ercolani, C.; Gardini, M.; Monacelli, F.; Pennesi, G.; Rossi, G. . (1983). Interaction of (phthalocyaninato)iron(II) with molecular oxygen: synthesis and characterization of two different crystalline forms of (.mu.-oxo)bis[(phthalocyaninato)iron(III)]. Inorganic Chemistry, 22(18), 2584–2589.
doi:10.1021/ic00160a023