Issue 98, 2023
From the journal:

Chemical Communications

Large vibrationally induced parity violation effects in CHDBrI+†

Eduardus, ORCID logo a   Yuval Shagam, ORCID logo b   Arie Landau,b   Shirin Faraji, ORCID logo c   Peter Schwerdtfeger, ORCID logo d   Anastasia Borschevsky ORCID logo a  and  Lukáš F. Pašteka ORCID logo *ae  

* Corresponding authors

a Van Swinderen Institute for Particle Physics and Gravity (VSI), University of Groningen, Groningen, The Netherlands
E-mail: l.f.pasteka@rug.nl

b Schulich Faculty of Chemistry, Solid State Institute and The Helen Diller Quantum Center, Technion-Israel Institute of Technology, Haifa, Israel

c Zernike Institute for Advanced Materials, University of Groningen, Groningen, The Netherlands

d Centre for Theoretical Chemistry and Physics, The New Zealand Institute for Advanced Study, Massey University, Auckland, New Zealand

e Department of Physical and Theoretical Chemistry, Faculty of Natural Sciences, Comenius University, Bratislava, Slovakia

Abstract

The isotopically chiral molecular ion CHDBrI+ is identified as an exceptionally promising candidate for the detection of parity violation in vibrational transitions. The largest predicted parity-violating frequency shift reaches 1.8 Hz for the hydrogen wagging mode which has a sub-Hz natural line width and its vibrational frequency auspiciously lies in the available laser range. In stark contrast to this result, the parent neutral molecule is two orders of magnitude less sensitive to parity violation. The origin of this effect is analyzed and explained. Precision vibrational spectroscopy of CHDBrI+ is feasible as it is amenable to preparation at internally low temperatures and resistant to predissociation, promoting long interrogation times (Landau et al., J. Chem. Phys., 2023, 159, 114307). The intersection of these properties in this molecular ion places the first observation of parity violation in chiral molecules within reach.

Graphical abstract: Large vibrationally induced parity violation effects in CHDBrI+

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Article information

DOI
https://doi.org/10.1039/D3CC03787H
Article type
Communication
Submitted
04 Aug 2023
Accepted
13 Nov 2023
First published
15 Nov 2023

Chem. Commun., 2023,59, 14579-14582

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Large vibrationally induced parity violation effects in CHDBrI+

Eduardus, Y. Shagam, A. Landau, S. Faraji, P. Schwerdtfeger, A. Borschevsky and L. F. Pašteka, Chem. Commun., 2023, 59, 14579 DOI: 10.1039/D3CC03787H

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