Electronic Resource
College Park, Md.
:
American Institute of Physics (AIP)
The Journal of Chemical Physics
84 (1986), S. 6790-6798
ISSN:
1089-7690
Source:
AIP Digital Archive
Topics:
Physics
,
Chemistry and Pharmacology
Notes:
Picosecond excited-state singlet–singlet absorption spectra (Sn ← S1) and excited-state decay kinetics are reported for several diazanaphthalenes and a triazanaphthalene in room temperature solution. New Sn (1nπ*) state energies are obtained empirically from these spectra. INDO-PSDCI molecular orbital calculations are used to confirm the Sn ← S1 nature of the excited state transitions observed. Decay rates are calculated from models based on a semiempirical molecular orbital formalism, and these calculated rates are compared with the observed ones. Agreement of the calculated and observed rates are good except in cases of substantial nπ*–ππ* mixing of the actual excited states and in a particular case of high molecular symmetry (1,5-naphthyridine).
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.450682
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