PRESSURE BROADENING OF LARGER MOLECULES - THE $\nu_{14}$-BAND OF $C_{6}H_{6}$

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1994

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Ohio State University

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We present first results on the pressure broadening, in the ν14 band of C6H6, i.e. we investigated collisions of C6H6 and air near 1024.6cm−1 and 1050.2cm−1 Using autocorrelation technique for the determination of an averaged broadening coefficient we found a self broadening coefficient of (0.13±0.01)cm−1/atm an air broadening coefficient of (0.086±0.025)cm−1/atm for the 1024.6cm−1 region (pp branch, 37≤J≤43). In the region near 1050.2cm−1 (RR branch, 30≤J≤38) the air broadening coefficient is remarkably (0.139±0.001)cm−1/atm and even larger than the self broadening coefficient is remarkably larger (0.139±0.001)cm1/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.

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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

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