THE STUDY OF NITROGEN(A triplet Sigma) GENERATED BY 1849 ANGSTROM MERCURY PHOTOSENSITIZATION.
Final technical rept.,
BOSTON UNIV MASS
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The possibility that energy transfer from Hgsinglet P1 produces N2A triplet Sigmau was suggested by emission of 2537 A radiation when mercury vapor was irradiated by 1849 A mercury resonance radiation. However, the same scintillation phenomenon is observed with many quenchers including rare gases. The efficiency of quenching of 1849 A mercury fluorescence does not depend on the chemical nature of the quenching gas but only on its mass. Satellite fluorescence bands near 1849 A are easily induced by various quenchers. The absence of observable slow decay of 2537 A scintillation when 1849 A irradiation of mercury vapor and N2 is abruptly terminated suggests that N2A triplet Sigmau is not involved in the scintillation process. All data can be accommodated by collision induced HGsinglet P1 to Hgtriplet P1 intersystem crossing but this mechanism has not yet been confirmed. Author
- Atomic and Molecular Physics and Spectroscopy