Absorption Spectrum of Magnesium Hydride in the Ultra-Violet

Details Absorption Spectrum of Magnesium Hydride in the Ultra-Violet Absorption Spectrum of Magnesium Hydride in the Ultra-Violet

Jan 1936

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1936natur.137..108g&link_type=abstract

Nature, Volume 137, Issue 3455, pp. 108-109 (1936).

Physics

2

Scientific paper

SOME years ago, Pearse1 reported a band spectrum in magnesium hydride (MgH) at λ 2430 having a very unusual structure. The source for production of the spectrum was a magnesium arc in hydrogen at a pressure of 1-5 cm. mercury. The band corresponds to a transition from an activated 2II* state to the ground level 2Σ. The R- and P-branches in the 0-0 band are abruptly cut off at R(9) and P(ll), due to a predissociation of the 2II* state at J = 10, while the Q-branch proceeds to higher J-numbers in a normal way.

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