Abstract
The electronic absorption spectra of excited-state 1,5-naphthyridine from 400 to 650 nm are reported in several solvents. The time evolution of these spectra indicate that they arise from one or more Sn←S 1 transitions. Comparison of these observed spectra with calculated excited state absorption spectra obtained using the INDO molecular orbital formalism demonstrates excellent agreement of the transition energies and oscillator strengths with Sn(1Au)←S 1(1Bg,nπ* transitions. These results conclusively identify the lowest excited singlet state of 1,5-naphthyridine as 1Bg(1nπ*).
Original language | English |
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Pages (from-to) | 3639-3644 |
Number of pages | 6 |
Journal | Journal of Chemical Physics |
Volume | 79 |
Issue number | 8 |
DOIs | |
State | Published - 1983 |