V. K. Indirapriyadharshini, P. Ramamurthy, V. Raghukumar
Jun 1, 2002
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Influential Citations
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Journal
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy
Abstract
1,6-Naphthyridines are a class of compounds that exhibit second harmonic generation on excitation with a Nd-YAG laser (1064 nm). Solvatochromism has been used to estimate enhancement in the dipole moments on excitation and the values of first-order hyperpolarizability, beta. Photophysical studies on the title compounds show that they have a fluorescence lifetime of about 10 ns and fluorescence quantum yield of approximately 0.05-0.1 in different solvents. Kurtz powder method has been used to find the NLO efficiency of the compounds with reference to urea.