Issue 6, 2019

High-resolution rotational Raman spectroscopy of benzene

Abstract

We present a rotational Raman spectrum for benzene with single-MHz resolution, more than a 100-fold improvement on literature data and sufficient to partially resolve K-splitting in some bands. Spectra for a frequency range of 0 to 500 GHz were measured through the observation of a coherent rotational wave packet in the time domain over a time scale of 1 microsecond. Spectroscopic frequencies were referenced to a GPS-stabilized clock. Fitted molecular constants of B = 5689.2671(±52) MHz, DJ = 1178(±50) Hz, and DJK = −2300(±120) Hz agree with results from some high-resolution rovibrational and rovibronic spectra but contradict others.

Graphical abstract: High-resolution rotational Raman spectroscopy of benzene

Article information

Article type
Communication
Submitted
11 дек. 2018
Accepted
16 јан. 2019
First published
17 јан. 2019

Phys. Chem. Chem. Phys., 2019,21, 2857-2860

High-resolution rotational Raman spectroscopy of benzene

J. C. Lee, D. E. Lee and T. Schultz, Phys. Chem. Chem. Phys., 2019, 21, 2857 DOI: 10.1039/C8CP07555G

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