Theoretical study of AlH/+/ - Spin splitting, core polarization, and interstellar chemistry

Details Theoretical study of AlH/+/ - Spin splitting, core polarization, and interstellar chemistry Theoretical study of AlH/+/ - Spin splitting, core polarization, and interstellar chemistry

Feb 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983jchph..78.1371c&link_type=abstract

Journal of Chemical Physics, vol. 78, Feb. 1, 1983, p. 1371-1376.

Physics

Chemical Physics

6

Aluminum Hydrides, Interstellar Chemistry, Metal Hydrides, Polarization (Spin Alignment), Spin-Orbit Interactions, Coupling, Interstellar Gas, Magnesium, Silicon, Splitting

Scientific paper

The spin splitting constant for the X 2 Sigma + state of AlH(+) is calculated to be gamma(0) = 0.058 per cm. The favorable comparison of this result with experiment indicates that the uncertainty in the previously calculated spin splitting in MgH is likely to be of the order of a few percent. Calculations are presented of the so-called core polarization contribution to the spin-orbit coupling constant in the A 2Pi(r) state of AlH(+). Results are also given for MgH and SiH. Astronomical applications of such calculations are discussed and the abundances of aluminum-bearing molecules in interstellar clouds are estimated.

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