Vibrational excitation of CO in the spin-orbit relaxation Hg(63P1→0)
- 1 January 1971
- journal article
- Published by Royal Society of Chemistry (RSC) in Transactions of the Faraday Society
- Vol. 67, 2862-2868
- https://doi.org/10.1039/tf9716702862
Abstract
In the Hg-flash-photosensitized reaction of carbon monoxide, CO(v5) was detected by kinetic absorption spectroscopy in the vacuum ultraviolet. Even with [CO] < 1 Torr and with short delay times, the ratio [CO(v= 1)]:[CO(v= 2)] was always high. By analyzing the effects of vibrational exchange processes, it was demonstrated that the CO(v= 1) largely arises from the spin-orbit relaxation Hg(63P1)+ CO(v= 0)→ Hg(63P0)+ CO(v= 1) which produces vibrationally excited molecules with approximately unit efficiency. It was shown that there is negligible quenching of Hg(63P1) by Ar at pressures up to 500 Torr.Keywords
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