PHOTOELECTRIC INTENSITY MEASUREMENTS UPON BANDS OF THE SiN (B2Σ+−X2Σ+) SPECTRUM
Keyword(s):
The SiN B2Σ+−X2Σ+ (3800–5200 A) spectrum was excited by continuous introduction of SiCl4 in trace amount into the afterglow produced by microwave excitation of nitrogen. Relative intensities of 21 bands were measured photo-electrically and interpreted with the aid of Franck–Condon factors qν′ν″ and r-centroids [Formula: see text] in terms of the variation of the electronic transition moment Re(r) with internuclear separation r. It was found that Re(r) could be represented empirically by Re(r) = const.(1−1.27r + 0.412r2), [Formula: see text].
1975 ◽
Vol 38
(4)
◽
pp. 299-311
◽
1981 ◽
Vol 50
(1)
◽
pp. 103-120
◽