2 Σ −→X2 Π, band system in PO molecule

Autor: V. Sethuraman, N. A. Narasimham, M. N. Dixit
Rok vydání: 1965
Předmět:
Zdroj: Proceedings of the Indian Academy of Sciences - Section A. 62:314-329
ISSN: 0370-0089
DOI: 10.1007/bf03046526
Popis: The new ultra-violet bands of PO lying in the region 2300–3000 A and degraded to the red, have been excited in a microwave (2450 mc./s.) discharge and photographed in the second and third orders of 3·4 m. and 6·6 m. grating spectrographs. Vibrational analysis of the R1 and Q2 heads shows that they can be expressed by the relation $$v_h = \left. \matrix{ 43852 \cdot 43 \hfill \cr 628 \cdot 60 \hfill \cr} \right\}\matrix{ { + 826 \cdot 37 (v' + \raise.5ex\hbox{$\scriptstyle 1$}\kern-.1em/ \kern-.15em\lower.25ex\hbox{$\scriptstyle 2$} ) - 6 \cdot 96 (v' + \raise.5ex\hbox{$\scriptstyle 1$}\kern-.1em/ \kern-.15em\lower.25ex\hbox{$\scriptstyle 2$} )^2 } \cr { - \left\{ {1233 \cdot 38 (v'' + \raise.5ex\hbox{$\scriptstyle 1$}\kern-.1em/ \kern-.15em\lower.25ex\hbox{$\scriptstyle 2$} ) - 6 \cdot 56 (v'' + \raise.5ex\hbox{$\scriptstyle 1$}\kern-.1em/ \kern-.15em\lower.25ex\hbox{$\scriptstyle 2$} )^2 } \right\}.} \cr } $$ . Rotational analysis of the 0–2 and 0–3 bands shows that they arise out of a2 Σ −−X2 Π transition.
Databáze: OpenAIRE