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
04 ربيع الثاني 1440
Accepted
10 جمادى الأولى 1440
First published
11 جمادى الأولى 1440

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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