ESTIMATION OF THE NONLINEAR OPTICAL RESPONSE OF PENTA(CHLORINE)CYCLOTRIPHOSPHAZENE OF SUBSTITUTED MONOPHTHALOCYANINES Zn Cu AND Co BASED ON CORRELATION MODEL

The search for suitable nonlinear optical materials is difficult due to the need for a large number of expensive studies. The use of the Correlator program is proposed to reduce the number of experiments in determining the best phthalocyanine complex as a optical limiter. A number of low-symmetry penta(chloro)cyclotriphosphazenesubstituted monophthalocyanines were used for testing. The reduced symmetry of the molecules made it possible to obtain effective media for limiters that provide attenuation of nanosecond laser radiation up to 20 times, depending on the central metal ion. The correlations involved the values of the dipole moment, polarizability and hyperpolarizability obtained by the DFT quantum chemical method, as well as experimental values from laser experiments. The effectiveness of the limiter material was evaluated on the basis of descriptors derived analytically.