𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Foreign gas broadening of an IR absorption line of formaldehyde

✍ Scribed by M Burkart; B Schramm

Publisher
Elsevier Science
Year
2003
Tongue
English
Weight
97 KB
Volume
217
Category
Article
ISSN
0022-2852

No coin nor oath required. For personal study only.

✦ Synopsis

The theory of nuclear spin state relaxation of symmetrical molecules like formaldehyde contains a collision time t c that is interpreted as time between rotationally inelastic molecular collisions. This time traditionally is determined from measurements of pressure broadening of spectral lines. In order to test whether these collision times, which determine spin relaxation rate constants and line broadening coefficients, respectively, are the same or at least related to another, we have performed systematic measurements of the broadening of an IR line of formaldehyde by other gases of different pressures.

πŸ“œ SIMILAR VOLUMES

Self- and Foreign-Gas-Broadening and Shi
Self- and Foreign-Gas-Broadening and Shifting of Lines in the Ξ½2Band of HCN
✍ V. Lemaire; A. Babay; B. Lemoine; F. Rohart; J.P. Bouanich πŸ“‚ Article πŸ“… 1996 πŸ› Elsevier Science 🌐 English βš– 166 KB

Collisional self-, N 2 -, H 2 -, and Ar-broadening and self-, H 2 -, and He-shifting parameters of HCN lines in the n 2 band of HCN have been investigated in the spectral range 735-810 cm 01 . Line broadenings were determined with a frequencystabilized tunable diode laser spectrometer. Lineshifts we