n → π* Interaction Enabling Transient Inversion of Chirality

Research output: Contribution to journalArticleResearchpeer review

Authors

  • Hao Wang
  • Walther Caminati
  • Meng Li
  • Junhua Chen
  • Xiao Tian
  • Jens Uwe Grabow
  • Qian Gou

External Research Organisations

  • Chongqing University
  • University of Bologna
  • Guiyang Medical College
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Details

Original languageEnglish
Pages (from-to)8874-8879
Number of pages6
JournalThe journal of physical chemistry letters
Volume14
Issue number39
Early online date27 Sept 2023
Publication statusPublished - 5 Oct 2023

Abstract

This study reports the observation and characterization of two isomers of the acrolein dimer by using high-resolution rotational spectroscopy in pulsed jets. The first isomer is stabilized by two hydrogen bonds, adopting a planar configuration, and is energetically favored over the second isomer, which exhibits a dominant n → π* interaction in a nearly orthogonal arrangement. Surprisingly, the n → π* interaction was revealed to enable a concerted tunneling motion of two moieties along the carbonyl group. This motion leads to the inversion of transient chirality associated with the exchange of donor-acceptor roles, as revealed by the spectral feature of quadruplets. Inversion of transient chirality is a fundamental phenomenon in quantum mechanics and commonly observed for only inversional motions of protons. It is the first discovery, to the best of our knowledge, that such heavy moieties can also undergo chirality inversion.

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Cite this

n → π* Interaction Enabling Transient Inversion of Chirality. / Wang, Hao; Caminati, Walther; Li, Meng et al.
In: The journal of physical chemistry letters, Vol. 14, No. 39, 05.10.2023, p. 8874-8879.

Research output: Contribution to journalArticleResearchpeer review

Wang, H, Caminati, W, Li, M, Chen, J, Tian, X, Grabow, JU & Gou, Q 2023, 'n → π* Interaction Enabling Transient Inversion of Chirality', The journal of physical chemistry letters, vol. 14, no. 39, pp. 8874-8879. https://doi.org/10.1021/acs.jpclett.3c02264
Wang, H., Caminati, W., Li, M., Chen, J., Tian, X., Grabow, J. U., & Gou, Q. (2023). n → π* Interaction Enabling Transient Inversion of Chirality. The journal of physical chemistry letters, 14(39), 8874-8879. https://doi.org/10.1021/acs.jpclett.3c02264
Wang H, Caminati W, Li M, Chen J, Tian X, Grabow JU et al. n → π* Interaction Enabling Transient Inversion of Chirality. The journal of physical chemistry letters. 2023 Oct 5;14(39):8874-8879. Epub 2023 Sept 27. doi: 10.1021/acs.jpclett.3c02264
Wang, Hao ; Caminati, Walther ; Li, Meng et al. / n → π* Interaction Enabling Transient Inversion of Chirality. In: The journal of physical chemistry letters. 2023 ; Vol. 14, No. 39. pp. 8874-8879.
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AU - Wang, Hao

AU - Caminati, Walther

AU - Li, Meng

AU - Chen, Junhua

AU - Tian, Xiao

AU - Grabow, Jens Uwe

AU - Gou, Qian

N1 - Funding Information: The authors are grateful for support from the National Natural Science Foundation of China (Grant22073013), Chongqing Talents: Exceptional Young Talents Project(Grantcstc2021ycjh-bgzxm0027), and the Fundamental Research Funds for the Central Universities (Grant2020CDJXZ002).

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