PRESSURE BROADENING OF LARGER MOLECULES - THE $\nu_{14}$-BAND OF $C_{6}H_{6}$
Loading...
Date
1994
Journal Title
Journal ISSN
Volume Title
Publisher
Ohio State University
Abstract
We present first results on the pressure broadening, in the $\nu_{14}$ band of $C_{6}H_{6}$, i.e. we investigated collisions of $C_{6}H_{6}$ and air near $1024.6 cm^{-1}$ and $1050.2 cm^{-1}$ Using autocorrelation technique for the determination of an averaged broadening coefficient we found a self broadening coefficient of $(0.13 \pm 0.01) cm^{-1}$/atm an air broadening coefficient of $(0.086 \pm 0.025) cm^{-1}$/atm for the $1024.6 cm^{-1}$ region (pp branch, $37 \leq J^{\prime\prime} \leq 43$). In the region near $1050.2 cm^{-1}$ (RR branch, $30 \leq J^{\prime\prime} \leq 38$) the air broadening coefficient is remarkably $(0.139 \pm 0.001) cm^{-1}$/atm and even larger than the self broadening coefficient is remarkably larger $(0.139 \pm 0.001) cm^{1}$/atm and even larger than the self broadening coefficient stated above. Additional we will present first result for individual line parameters using a fit algorithm.
Description
Y.H. and J. W. Wish to thank the Deutsche Bundesstiftung Umwelt for a grant
Author Institution: Optisches Institut der Technischen Universit\""{a}t Berlin, Sekar. PN 0-1 Hardenbergstra\ss e 36; Dept. of Chemistry, University of Chicago
Author Institution: Optisches Institut der Technischen Universit\""{a}t Berlin, Sekar. PN 0-1 Hardenbergstra\ss e 36; Dept. of Chemistry, University of Chicago