Continuous wave stimulated Raman spectroscopy of the ν₁ band of natural GeH₄

Abstract

The Y, band of natural germane (GeH,) has been recorded using a continuous wave stimulated Raman experiment which we describe in this paper. The resolution is about 0.003 cm-I at 10 Torr pressure. In the first stage of the analysis, the Raman lines were identified thanks to the recent study of the v1 and u3 bands made by Lepage, Champion and Robiette. In the second stage, the stimulated Raman data were combined with the infrared data to refine the excited state constants of the isotopic species "GeH.,, "GeH4 and ',Ge&.

Inverse R aman Spectrometry

“…102 Spectroscopic constants for the v 1 D 1 level for five isotopomers present in natural abundance in GeH 4 have been reported. 103 IR absorption data were combined with SRS data in this work. More recently the SRS spectrum of the n 1 band of 70 GeD 4 has been recorded and analyzed.…”

High resolution study of strongly interacting ν1(A1)/ν3(<

“…In Ref. [16] the high resolution (0.005 cm À 1 )spectrum in the region of the Q-branch of ν 1 (2108.4-2110.6 cm À 1 ) was recorded for the first time with the Raman spectrometer. Assignments of Raman transitions were made (J max: ¼ 11).…”

Observation de transitions de la molécule 29SiH4 dans le spectre Raman stimulé de la bande ν1 du silane en abondance naturelle

“…Dispositif experimental Cette experience a été realisee a partir d'un processus de diffusion Raman stimulee. Le spectrometre decrit dans une publication anterieure [7] a ete modifie pour en accroitre la sensibilité.…”