Sensitization of the OH(A 2Σ+ → X 2Πi) emission by Hg(6 3P0) metastables

Vikis, A.C.

doi:10.1016/0009-2614(75)85762-9

Cited by 9 publications

(1 citation statement)

References 28 publications

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“…Though the resonant EET processes outlined above seem to be better understood, the understanding of the nonresonant EET processes has been more diffuse. Several terminologies have been used in the literature to account for this type of EET, for example: formation of excited intermediates, − nonvertical and nonspectroscopic energy transfer, , non-Franck−Condon, nonresonant and nonoptical energy transfer, − crossing of the entrance and product channels . An interesting aspect of the nonresonant EET, however, is that in the majority of cases involvement of an excited complex has been postulated.…”

Section: Introductionmentioning

confidence: 99%

Photochemically Induced Energy Transfer II: Spectroscopic and Photophysical Aspects of the Electronic-to-Electronic Energy Transfer in Geminate van der Waals Complexes

2000

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A detailed spectroscopic study of the photochemically induced electronic-to-electronic energy transfer reported by us earlier (Gudipati, M. S. J. Phys. Chem. A 1997, 101, 2003) in O···CO geminate van der Waals complexes in Ar matrices revealed that these complexes are stabilized in two distinct sites, a singly substitutional (SS) site and a doubly substitutional (DS) site. In the SS site the spectra of O and CO are strongly perturbed, whereas in the DS site spectroscopic features nearly identical to the isolated O and CO have been observed. Theoretical calculations on the ground-state O···CO complex in the SS and DS sites of the Ar lattice are in agreement with the experimental observations. Photolysis of CO2 in Xe/CO2/Ar matrices leads to the formation of Xe···O···CO complexes, and energy transfer from the excited CO to XeO that results in emission from XeO has been observed. Electronic spectra corresponding to the O···CO complexes in Kr matrices have also been observed, but only as weak features superposed on strong charge-transfer transitions in KrO in Kr matrices. We proposed to unify the nonresonant excitation energy transfer processes that involve the formation of an excited species under photochemically induced energy transfer.

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