A new electronic state of MgO
- 1 April 1971
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic and Molecular Physics
- Vol. 4 (4), 565-567
- https://doi.org/10.1088/0022-3700/4/4/018
Abstract
A number of bands of MgO have been observed in the region 2500-2800 AA in emission from a d.c. arc between magnesium electrodes in an atmosphere of oxygen at low pressure. A detailed fine structure analysis of one of the bands at 37683.5 cm-1 (band origin) shows that the band arises due to an electronic transition from a new excited state designated as E 1 Sigma to the well known state X 1 Sigma of MgO. The band is very likely the 0-0 band. The rotational constants of the new state E1 Sigma are B0=0.5249 cm-1 D0=1.14*10-6 cm-1. A number of perturbations have been observed in the rotational structure of the band.Keywords
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