Vibration-rotation-tunneling spectrum of formic acid dimer in the 7.3μm region

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https://hdl.handle.net/2142/91086

Title: Vibration-rotation-tunneling spectrum of formic acid dimer in the 7.3μm region
Author(s): Duan, Chuanxi
Issue Date: 2016-06-21
Keyword(s): Spectroscopy of Large Amplitude Motions
Date of Ingest: 2017-01-26T21:38:54Z
Abstract: The vibration-rotation-tunneling spectrum of formic acid dimer, (HCOOH)$_{2}$, in the spectral region 1369-1375 \wn has been measured by a multi-step rapid-can method in a slit jet expansion using a distributed-feedback quantum cascade laser. The observed spectrum is assigned to the O-C-H bending fundamental band. The tunneling splitting in the vibrational excited state is determined to be about 0.005 \wn, which is much smaller than that in the ground state, 0.0165 \wn (Goroya et al.,J. Chem. Phys. 140, 164311 (2014)). Strong local perturbations involving transitions with J > 9, K = 0 and 1 are identified in the observed spectrum. The deperturbation analysis will be presented.
Publisher: International Symposium on Molecular Spectroscopy
Type of Resource: text
Genre of Resource: Conference Paper / Presentation
Language: En
Permalink: http://hdl.handle.net/2142/91086