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VOLUME 44 (1986) | ISSUE 10 | PAGE 450
Uniform spectrum of vibrational transitions and the intramolecular vibrational-relaxation time of a highly excited polyatomic molecule
A uniformly broadened Lorentz spectrum of IR absorption of a polyatomic molecule vibrationally overexcited above the dissociation boundary has been measured experimentally for the first time. The half-width of the spectrum of a (CF3)3CI molecule (γ = 9 ± 1 cm-1) corresponds to the time of the intramolecular vibrational relaxation from the excitable mode r1VR —0.3X 10"12 s.