O. M. Zharkova

Spectral-luminescent properties of laurdan molecule.

Quantum-chemical calculations of ground and excited states of fluorescent probe (laurdan) by ab initio and semiempirical methods were performed. The laurdan optimized geometries of S0 and S1 states were obtained. The influence of laurdan nonrigidity structure on dipole moments and location of energy levels were studied. The specific solvation centers of laurdan were obtained. The rate constants of photoprocesses and fluorescence quantum yield of laurdan in non-polar solvent were calculated.

Proton solvates in a water environment and their influencing on fluorescent properties of organic molecules

Some important and essential features of naphthalene derivatives in water environment are studied. Possible interaction centers of investigated molecules with solvent are estimated Possible models of 1-naphthol, 1-naphtholate and prodan complexes in water are offered. The rate constants of photoprocesses and the quantum yield of fluorescence are determined for investigated molecules its complexes with water. Quantum-chemical calculations are performed in the geometry of both the ground and exited states of molecules.