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Eduardus, Shagam Y, Landau A, Faraji S, Schwerdtfeger P, Borschevsky A, Pašteka LF. Large vibrationally induced parity violation effects in CHDBrI . Chem Commun (Camb) 2023; 59:14579-14582. [PMID: 37990542 DOI: 10.1039/d3cc03787h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2023]
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.
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Affiliation(s)
- Eduardus
- Van Swinderen Institute for Particle Physics and Gravity (VSI), University of Groningen, Groningen, The Netherlands.
| | - Yuval Shagam
- Schulich Faculty of Chemistry, Solid State Institute and The Helen Diller Quantum Center, Technion-Israel Institute of Technology, Haifa, Israel
| | - Arie Landau
- Schulich Faculty of Chemistry, Solid State Institute and The Helen Diller Quantum Center, Technion-Israel Institute of Technology, Haifa, Israel
| | - Shirin Faraji
- Zernike Institute for Advanced Materials, University of Groningen, Groningen, The Netherlands
| | - Peter Schwerdtfeger
- Centre for Theoretical Chemistry and Physics, The New Zealand Institute for Advanced Study, Massey University, Auckland, New Zealand
| | - Anastasia Borschevsky
- Van Swinderen Institute for Particle Physics and Gravity (VSI), University of Groningen, Groningen, The Netherlands.
| | - Lukáš F Pašteka
- Van Swinderen Institute for Particle Physics and Gravity (VSI), University of Groningen, Groningen, The Netherlands.
- Department of Physical and Theoretical Chemistry, Faculty of Natural Sciences, Comenius University, Bratislava, Slovakia
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2
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Fiechter M, Haase PAB, Saleh N, Soulard P, Tremblay B, Havenith RWA, Timmermans RGE, Schwerdtfeger P, Crassous J, Darquié B, Pašteka LF, Borschevsky A. Toward Detection of the Molecular Parity Violation in Chiral Ru(acac) 3 and Os(acac) 3. J Phys Chem Lett 2022; 13:10011-10017. [PMID: 36264147 PMCID: PMC9620138 DOI: 10.1021/acs.jpclett.2c02434] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Accepted: 10/11/2022] [Indexed: 06/03/2023]
Abstract
We present a theory-experiment investigation of the helically chiral compounds Ru(acac)3 and Os(acac)3 as candidates for next-generation experiments for detection of molecular parity violation (PV) in vibrational spectra. We used relativistic density functional theory calculations to identify optimal vibrational modes with expected PV effects exceeding by up to 2 orders of magnitude the projected instrumental sensitivity of the ultrahigh resolution experiment under construction at the Laboratoire de Physique des Lasers in Paris. Preliminary measurements of the vibrational spectrum of Ru(acac)3 carried out as the first steps toward the planned experiment are presented.
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Affiliation(s)
- Marit
R. Fiechter
- Van
Swinderen Institute for Particle Physics and Gravity (VSI), University of Groningen, Nijenborgh 4, 9747
AG Groningen, The Netherlands
- Department
of Physics, ETH Zürich, Otto-Stern-Weg 1, 8093 Zurich, Switzerland
| | - Pi A. B. Haase
- Van
Swinderen Institute for Particle Physics and Gravity (VSI), University of Groningen, Nijenborgh 4, 9747
AG Groningen, The Netherlands
| | - Nidal Saleh
- Department
of Organic Chemistry, University of Geneva, Quai Ernest Ansermet 30, 1211 Geneva 4, Switzerland
- Université
de Rennes, CNRS, ISCR-UMR
6226, Campus de Beaulieu, 35042 Rennes Cedex, France
| | - Pascale Soulard
- Sorbonne
Université, CNRS, UMR 8233,
MONARIS, Case courrier
49, 4 place Jussieu, F-75005 Paris, France
| | - Benoît Tremblay
- Sorbonne
Université, CNRS, UMR 8233,
MONARIS, Case courrier
49, 4 place Jussieu, F-75005 Paris, France
| | - Remco W. A. Havenith
- Zernike
Institute for Advanced Materials, University
of Groningen, Nijenborgh
4, 9747 AG Groningen, The Netherlands
- Stratingh
Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
- Ghent
Quantum
Chemistry Group, Department of Chemistry, Ghent University, Krijgslaan
281 (S3), B-9000 Ghent, Belgium
| | - Rob G. E. Timmermans
- Van
Swinderen Institute for Particle Physics and Gravity (VSI), University of Groningen, Nijenborgh 4, 9747
AG Groningen, The Netherlands
| | - Peter Schwerdtfeger
- Centre
for Theoretical Chemistry and Physics, The New Zealand Institute for
Advanced Study, Massey University, 0745 Auckland, New Zealand
| | - Jeanne Crassous
- Université
de Rennes, CNRS, ISCR-UMR
6226, Campus de Beaulieu, 35042 Rennes Cedex, France
| | - Benoît Darquié
- Laboratoire de Physique des Lasers, Université
Sorbonne Paris Nord, CNRS, 93430 Villetaneuse, France
| | - Lukáš F. Pašteka
- Van
Swinderen Institute for Particle Physics and Gravity (VSI), University of Groningen, Nijenborgh 4, 9747
AG Groningen, The Netherlands
- Department of Physical and Theoretical
Chemistry, Faculty of Natural
Sciences, Comenius University, Ilkovičova 6, 84215 Bratislava, Slovakia
| | - Anastasia Borschevsky
- Van
Swinderen Institute for Particle Physics and Gravity (VSI), University of Groningen, Nijenborgh 4, 9747
AG Groningen, The Netherlands
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3
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Darquié B, Saleh N, Tokunaga SK, Srebro-Hooper M, Ponzi A, Autschbach J, Decleva P, Garcia GA, Crassous J, Nahon L. Valence-shell photoelectron circular dichroism of ruthenium(III)-tris-(acetylacetonato) gas-phase enantiomers. Phys Chem Chem Phys 2021; 23:24140-24153. [PMID: 34666343 DOI: 10.1039/d1cp02921e] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Chiral transition-metal complexes are of interest in many fields ranging from asymmetric catalysis and molecular materials science to optoelectronic applications or fundamental physics including parity violation effects. We present here a combined theoretical and experimental investigation of gas-phase valence-shell photoelectron circular dichroism (PECD) on the challenging open-shell ruthenium(III)-tris-(acetylacetonato) complex, Ru(acac)3. Enantiomerically pure Δ- or Λ-Ru(acac)3, characterized by electronic circular dichroism (ECD), were vaporized and adiabatically expanded to produce a supersonic beam and photoionized by circularly-polarized VUV light from the DESIRS beamline at Synchrotron SOLEIL. Photoelectron spectroscopy (PES) and PECD experiments were conducted using a double imaging electron/ion coincidence spectrometer, and compared to density functional theory (DFT) and time-dependent DFT (TDDFT) calculations. The open-shell character of Ru(acac)3, which is not taken into account in our DFT approach, is expected to give rise to a wide multiplet structure, which is not resolved in our PES signals but whose presence might be inferred from the additional striking features observed in the PECD curves. Nevertheless, the DFT-based assignment of the electronic bands leads to the characterisation of the ionized orbitals. In line with other recent works, the results confirm that PECD persists independently on the localization and/or on the achiral or chiral nature of the initial orbital, but is rather a probe of the molecular potential as a whole. Overall, the measured PECD signals on Ru(acac)3, a system exhibiting D3 propeller-type chirality, are of similar magnitude compared to those on asymmetric-carbon-based chiral organic molecules which constitute the vast majority of species investigated so far, thus suggesting that PECD is a universal mechanism, inherent to any type of chirality.
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Affiliation(s)
- Benoît Darquié
- Laboratoire de Physique des Lasers, Université Sorbonne Paris Nord, CNRS, Villetaneuse, France.
| | - Nidal Saleh
- Univ Rennes CNRS, ISCR-UMR 6226 ScanMat - UMS 2001, 35000 Rennes, France.
| | - Sean K Tokunaga
- Laboratoire de Physique des Lasers, Université Sorbonne Paris Nord, CNRS, Villetaneuse, France.
| | - Monika Srebro-Hooper
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland.
| | - Aurora Ponzi
- CNR IOM and Dipartimento di Scienze Chimiche e Farmaceutiche, Universita' di Trieste, I-34127 Trieste, Italy.
| | - Jochen Autschbach
- Department of Chemistry, University at Buffalo, State University of New York, Buffalo, NY, 14260, USA
| | - Piero Decleva
- CNR IOM and Dipartimento di Scienze Chimiche e Farmaceutiche, Universita' di Trieste, I-34127 Trieste, Italy.
| | - Gustavo A Garcia
- Synchrotron SOLEIL, L'Orme des Merisiers, St. Aubin, BP 48, 91192 Gif sur Yvette, France.
| | - Jeanne Crassous
- Univ Rennes CNRS, ISCR-UMR 6226 ScanMat - UMS 2001, 35000 Rennes, France.
| | - Laurent Nahon
- Synchrotron SOLEIL, L'Orme des Merisiers, St. Aubin, BP 48, 91192 Gif sur Yvette, France.
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4
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Yu P, Hutzler NR. Probing Fundamental Symmetries of Deformed Nuclei in Symmetric Top Molecules. PHYSICAL REVIEW LETTERS 2021; 126:023003. [PMID: 33512225 DOI: 10.1103/physrevlett.126.023003] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Accepted: 11/24/2020] [Indexed: 06/12/2023]
Abstract
Precision measurements of Schiff moments in heavy, deformed nuclei are sensitive probes of beyond standard model T, P violation in the hadronic sector. While the most stringent limits on Schiff moments to date are set with diamagnetic atoms, polar polyatomic molecules can offer higher sensitivities with unique experimental advantages. In particular, symmetric top molecular ions possess K doublets of opposite parity with especially small splittings, leading to full polarization at low fields, internal comagnetometer states useful for rejection of systematic effects, and the ability to perform sensitive searches for T, P violation using a small number of trapped ions containing heavy exotic nuclei. We consider the symmetric top cation ^{225}RaOCH_{3}^{+} as a prototypical and candidate platform for performing sensitive nuclear Schiff measurements and characterize in detail its internal structure using relativistic ab initio methods. The combination of enhancements from a deformed nucleus, large polarizability, and unique molecular structure make this molecule a promising platform to search for fundamental symmetry violation even with a single trapped ion.
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Affiliation(s)
- Phelan Yu
- Division of Physics, Mathematics, and Astronomy, California Institute of Technology, Pasadena, California 91125, USA
| | - Nicholas R Hutzler
- Division of Physics, Mathematics, and Astronomy, California Institute of Technology, Pasadena, California 91125, USA
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5
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Saleh N, Bast R, Vanthuyne N, Roussel C, Saue T, Darquié B, Crassous J. An oxorhenium complex bearing a chiral cyclohexane-1-olato-2-thiolato ligand: Synthesis, stereochemistry, and theoretical study of parity violation vibrational frequency shifts. Chirality 2017; 30:147-156. [PMID: 29139574 DOI: 10.1002/chir.22785] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2017] [Revised: 10/02/2017] [Accepted: 10/05/2017] [Indexed: 11/09/2022]
Abstract
In our effort towards measuring the parity violation energy difference between two enantiomers, a simple chiral oxorhenium complex 5 bearing enantiopure 2-mercaptocyclohexan-1-ol has been prepared as a potential candidate species. Vibrational circular dichroism revealed a chiral environment surrounding the rhenium atom, even though the rhenium is not a stereogenic center itself, and enabled to assign the (1S,2S)-(-) and (1R,2R)-(+) absolute configuration for 5. For both compound 5 and complex 4, previously studied by us and bearing a propane-2-olato-3-thiolato ligand, relativistic calculations predict parity violating vibrational frequency differences of a few hundreds of millihertz, above the expected sensitivity attainable by a molecular beam Ramsey interferometer that we are constructing.
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Affiliation(s)
- Nidal Saleh
- Institut des Sciences Chimiques de Rennes UMR 6226, CNRS Université de Rennes 1, Campus de Beaulieu, Rennes Cedex, France
| | - Radovan Bast
- High Performance Computing Group, UiT The Arctic University of Norway, Tromsø, Norway
| | - Nicolas Vanthuyne
- Aix Marseille Université, Centrale Marseille, CNRS, iSm2 UMR 7313, Marseille, France
| | - Christian Roussel
- Aix Marseille Université, Centrale Marseille, CNRS, iSm2 UMR 7313, Marseille, France
| | - Trond Saue
- Laboratoire de Chimie et Physique Quantiques UMR 5626, CNRS et Université de Toulouse 3 (Paul Sabatier), Toulouse, France
| | - Benoît Darquié
- Laboratoire de Physique des Lasers, Université Paris 13, Sorbonne Paris Cité CNRS, Villetaneuse, France
| | - Jeanne Crassous
- Institut des Sciences Chimiques de Rennes UMR 6226, CNRS Université de Rennes 1, Campus de Beaulieu, Rennes Cedex, France
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6
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Rehe D, Kornienko AY, Emge TJ, Brennan JG. Thorium Compounds with Bonds to Sulfur or Selenium: Synthesis, Structure, and Thermolysis. Inorg Chem 2016; 55:6961-7. [DOI: 10.1021/acs.inorgchem.6b00645] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- David Rehe
- Department of Chemistry and Chemical Biology, Rutgers, the State University of New Jersey, 610 Taylor Road, Piscataway, New Jersey 08854-8087, United States
| | - Anna Y. Kornienko
- Department of Chemistry and Chemical Biology, Rutgers, the State University of New Jersey, 610 Taylor Road, Piscataway, New Jersey 08854-8087, United States
| | - Thomas J. Emge
- Department of Chemistry and Chemical Biology, Rutgers, the State University of New Jersey, 610 Taylor Road, Piscataway, New Jersey 08854-8087, United States
| | - John G. Brennan
- Department of Chemistry and Chemical Biology, Rutgers, the State University of New Jersey, 610 Taylor Road, Piscataway, New Jersey 08854-8087, United States
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