Abstract
Laser-induced fluorescence (l.i.f.) of the phenyl nitrene (PhN) radical has been observed in the wavelength region 360-370 nm following its production by infrared multiple-photon dissociation of phenyl isocyanate. The transition probes the ground 3A2 state of the species: the upper 3B1 level has a radiative lifetime of 45 ± 3 ns. Ground-state PhN is born vibrationally hot, and collisional relaxation has been studied in the presence of nine added gases, with the efficiencies of the processes depending upon long-range attractive forces between the colliding species. The dissociation process is compared with that of benzylamine, with l.i.f. detection of the 2A2-2B2 transition in the benzyl radical. An upper limit is proposed for the internal energy content of the PhN radical.
Original language | English |
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Pages (from-to) | 2011-2024 |
Number of pages | 14 |
Journal | Journal of the Chemical Society, Faraday Transactions 2: Molecular and Chemical Physics |
Volume | 83 |
Issue number | 11 |
DOIs | |
Publication status | Published - 1987 |
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
- Physical and Theoretical Chemistry