Triplet-triplet optical energy transfer from benzophenone to naphthalene in the vapor phase.
In principle the optical energy absorbed by a complex molecule raises that molecule to one of its excited states, and afterwards this excitation energy decays through the different relaxation channels. Initially, electronically excited benzophenone emits photons in the phosphorescence band of benzophenone and these emitted photons, as a stream of particles, are absorbed by the acceptor molecule naphthalene, then excited naphthalene phosphoresces. In this investigation, sensitized phosphorescence decay times in different conditions were measured for benzophenone-naphthalene system in the vapor phase. The ultraviolet-visible spectra of the system in the vapor phase at room temperature conditions were broad and structureless.
Bayrakçeken
Fuat
F
Division of Optical Spectroscopy, Department of Biomedical Engineering, Yeditepe University, Istanbul 34755, Turkey. fubay@yeditepe.edu.tr
D001577:Benzophenones / Q000737:chemistry*; D004735:Energy Transfer; D015394:Molecular Structure; D009281:Naphthalenes / Q000737:chemistry*; D013053:Spectrophotometry; D014835:Volatilization
D001577:Benzophenones; D009281:Naphthalenes; C031721:naphthalene; C047723:benzophenone