Magnetic field effects on the luminescence of an aromatic liquid excited in the vacuum-ultraviolet region

Time-resolved single-photon counting has been used to measure luminescence decays of Santovac oil-a polyphenoxy compound-excited with 7-30eV photons from the synchrotron radiation source at Daresbury. The effect of magnetic field demonstrates the occurrence of radical-ion recombination and, at highe...

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Veröffentlicht in:	Journal of physical chemistry (1952) 1991-04, Vol.95 (7), p.2662-2664
Hauptverfasser:	Brocklehurst, Brian, Hopkirk, Andrew, Munro, Ian H, Sparrow, Raymond
Format:	Artikel
Sprache:	eng
Schlagworte:	400600 - Radiation Chemistry ACCELERATORS AROMATICS BREMSSTRAHLUNG CHARGED PARTICLES CHEMISTRY CYCLIC ACCELERATORS DATA ELECTROMAGNETIC RADIATION ENERGY LEVELS Exact sciences and technology EXCITED STATES EXPERIMENTAL DATA FAR ULTRAVIOLET RADIATION General and physical chemistry INFORMATION IONS LUMINESCENCE MAGNETIC FIELDS NINA NUMERICAL DATA OILS ORGANIC COMPOUNDS ORGANIC OXYGEN COMPOUNDS OTHER ORGANIC COMPOUNDS Photochemistry Physical chemistry of induced reactions (with radiations, particles and ultrasonics) RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY RADIATIONS RADICALS RADIOCHEMISTRY RESOLUTION SYNCHROTRON RADIATION SYNCHROTRONS TIME RESOLUTION TIMING PROPERTIES ULTRAVIOLET RADIATION
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Beschreibung
Zusammenfassung:	Time-resolved single-photon counting has been used to measure luminescence decays of Santovac oil-a polyphenoxy compound-excited with 7-30eV photons from the synchrotron radiation source at Daresbury. The effect of magnetic field demonstrates the occurrence of radical-ion recombination and, at higher energies, fission of the initial singlets into two triplet species. The role of the latter process in radiation chemistry is discussed.
ISSN:	0022-3654 1541-5740
DOI:	10.1021/j100160a008