Collision-induced IR absorption in gas phase Hg(6 3P1) + HgBr2(1 1 Sigma g +) reactions - Enhancement of the HgBr(B 2 Sigma +) product channel

Details Collision-induced IR absorption in gas phase Hg(6 3P1) + HgBr2(1 1 Sigma g +) reactions - Enhancement of the HgBr(B 2 Sigma +) product channel Collision-induced IR absorption in gas phase Hg(6 3P1) + HgBr2(1 1 Sigma g +) reactions - Enhancement of the HgBr(B 2 Sigma +) product channel

Oct 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985jchph..83.3334h&link_type=abstract

Journal of Chemical Physics (ISSN 0021-9606), vol. 83, Oct. 1, 1985, p. 3334-3339.

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Bromides, Infrared Absorption, Mercury (Metal), Mercury Compounds, Molecular Collisions, Quantum Chemistry, Electron States, Gas Mixtures, Laser Applications, Reaction Products

Scientific paper

An investigation has been conducted of laser-assisted reactions in Hg/HgBr2 gas mixtures by measuring fluorescence from the product, HgBr radical, following simultaneous IR (1064 nm) and UV (253.7 nm) laser excitation. The product emission has one-photon dependence on both IR and UV laser power, and the results indicate that the excited HgBr product channel is accessed through single photon absorptions by the (Hg-HgBr2) complex. This constitutes the first experimental evidence for an electronically excited state of the (Hg-HgBr2) collision complex, having an energy level greater than 4.9 eV but less than 6.1 eV. With the addition of tunable IR lasers this technique could provide an important spectroscopic method for investigation of the homologous series of collision complexes, (Hg-HgX2) where (X = F, Cl, Br, I).

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