F. Koksal et al., EPR OF POWDER COPPER PHTHALOCYANINATE SUBSTITUTED WITH 8 TETRAAZAMACROCYCLES AND ITS NONANUCLEAR NI2+, CO2+, ZN2+ AND CU2+ COMPLEXES, Journal of chemical research. Synopses, (2), 1998, pp. 96-97
Variations of the electron paramagnetic resonance parameters of the co
pper phthalocyaninates due to the paramagnetic and diamagnetic metal i
ons substituted into the outer cells of eight 12-membered tetraazamacr
ocycles are found to be very slight and this slight difference is attr
ibuted to the electronegativity of the substituted metal.