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Title:A COMBINED GIGAHERTZ AND TERAHERTZ SYNCHROTRON-BASED FOURIER TRANSFORM INFRARED SPECTROSCOPIC INVESTIGATION OF ORTHO-D-PHENOL
Author(s):Chen, Ziqiu
Contributor(s):Zindel, Daniel; Quack, Martin; Prentner, Robert; Fábri, Csaba; Albert, Sieghard
Subject(s):Large amplitude motions, internal rotation
Abstract:Tunneling switching is a fundamental phenomenon of interest in molecular quantum dynamics including also chiral molecules and parity violation.footnote{M. Quack , textit{Fundamental Symmetries and Symmetry Violations from High-resolution Spectroscopy}, textit{Handbook of High Resolution Spectroscopy, M. Quack and F. Merkt eds.},John Wiley & Sons Ltd, Chichester, New York, 2001, vol. 1, ch. 18, pp. 659-722.}$^{,}$footnote{R. Prentner, M. Quack, J. Stohner and M. Willeke, textit{J. Phys. Chem. A} textbf{119}, 12805-12822 (2015).}$^{,}$footnote {S. Albert, Z. Chen, C. F'{a}bri, R. Prentner M. Quack and D. Zindel, paper at this meeting.} Deuterated phenols have been identified as prototypical achrial candidates.footnote{S. Albert, Ph. Lerch, R. Prentner and M. Quack, textit{Angew. Chem. Int. Ed.} textbf{52}, 346-349 (2013).} We report the high resolution spectroscopic investigation of the ortho-D-phenol in the GHz and THz ranges following our recent discovery of tunneling switching in its isotopomer meta-D-phenol.footnote{label{myfootnote}S. Albert, Z. Chen, C. F'{a}bri,P. Lerch, R. Prentner and M. Quack, emph{Mol.Phys.} textbf{114}, 2751-2768 (2016) and emph{71st International Symposium on Molecular Spectroscopy}, Urbana-Champaign, USA, June 20-24, Talk FE04 (2016).} Here we report new results on ortho-D-phenol.The pure rotational spectra were recorded in the range of 72-117 GHz and assigned to the syn- and anti- structures in the ground and the first excited torsional states. Specific torsional states were assigned based on a comparison of experimental rotational constants with the quasiadiabatic channel reaction path Hamiltonian (RPH) calculations. The torsional fundamental at ~308 cm$^{-1}$ and the first hot band at 275 cm$^{-1}$ were subsequently assigned. The analyses of pure rotational and rovibrational spectra shall be discussed in detail in relation to possible tunneling switching.
Issue Date:6/20/2017
Publisher:International Symposium on Molecular Spectroscopy
Citation Info:APS
Genre:CONFERENCE PAPER/PRESENTATION
Type:Text
Language:English
URI:http://hdl.handle.net/2142/97045
DOI:10.15278/isms.2017.TD06
Date Available in IDEALS:2017-07-27


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