V. V. Apanasovich,*E. G. Novikov, N. N. Yatskov,R. B. M. Koehorst,
T. J. Schaafsma, and A. van Hoek

Results of investigation of the optical properties of zinc complexes of mesotetraphenylporphyrin and monopyridyltriphenylporphyrin in impurity-free organic solvent are presented. Analyses of absorption and emission spectra and fluorescence decay kinetics in terms of both a sum of exponentials and using simulation of energy-transformation processes in a tetramer-type Zn-porphyrin complex compound are carried out.