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Direct observation of chirality-induced spin selectivity in electron donor-acceptor molecules.

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Title: Direct observation of chirality-induced spin selectivity in electron donor-acceptor molecules.
Authors: Eckvahl, Hannah J., Tcyrulnikov, Nikolai A., Chiesa, Alessandro, Bradley, Jillian M., Young, Ryan M., Carretta, Stefano, Krzyaniak, Matthew D., Wasielewski, Michael R.
Source: Science (pre-March 2025). 10/13/2023, Vol. 382 Issue 6667, p197-201. 5p. 1 Color Photograph, 3 Graphs.
Subjects: Electron donors, Electron spin, Electron spin states, Electron paramagnetic resonance spectroscopy, Photoinduced electron transfer, Molecules
Abstract: The role of chirality in determining the spin dynamics of photoinduced electron transfer in donor-acceptor molecules remains an open question. Although chirality-induced spin selectivity (CISS) has been demonstrated in molecules bound to substrates, experimental information about whether this process influences spin dynamics in the molecules themselves is lacking. Here we used time-resolved electron paramagnetic resonance spectroscopy to show that CISS strongly influences the spin dynamics of isolated covalent donor–chiral bridge–acceptor (D-Bc-A) molecules in which selective photoexcitation of D is followed by two rapid, sequential electron-transfer events to yield D•+-Bc-A•–. Exploiting this phenomenon affords the possibility of using chiral molecular building blocks to control electron spin states in quantum information applications. [ABSTRACT FROM AUTHOR]
Copyright of Science (pre-March 2025) is the property of American Association for the Advancement of Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Psychology and Behavioral Sciences Collection
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Header DbId: pbh
DbLabel: Psychology and Behavioral Sciences Collection
An: 172938739
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Label: Title
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  Data: Direct observation of chirality-induced spin selectivity in electron donor-acceptor molecules.
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  Data: <searchLink fieldCode="AR" term="%22Eckvahl%2C+Hannah+J%2E%22">Eckvahl, Hannah J.</searchLink><br /><searchLink fieldCode="AR" term="%22Tcyrulnikov%2C+Nikolai+A%2E%22">Tcyrulnikov, Nikolai A.</searchLink><br /><searchLink fieldCode="AR" term="%22Chiesa%2C+Alessandro%22">Chiesa, Alessandro</searchLink><br /><searchLink fieldCode="AR" term="%22Bradley%2C+Jillian+M%2E%22">Bradley, Jillian M.</searchLink><br /><searchLink fieldCode="AR" term="%22Young%2C+Ryan+M%2E%22">Young, Ryan M.</searchLink><br /><searchLink fieldCode="AR" term="%22Carretta%2C+Stefano%22">Carretta, Stefano</searchLink><br /><searchLink fieldCode="AR" term="%22Krzyaniak%2C+Matthew+D%2E%22">Krzyaniak, Matthew D.</searchLink><br /><searchLink fieldCode="AR" term="%22Wasielewski%2C+Michael+R%2E%22">Wasielewski, Michael R.</searchLink>
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  Data: <searchLink fieldCode="JN" term="%22Science+%28pre-March+2025%29%22">Science (pre-March 2025)</searchLink>. 10/13/2023, Vol. 382 Issue 6667, p197-201. 5p. 1 Color Photograph, 3 Graphs.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Electron+donors%22">Electron donors</searchLink><br /><searchLink fieldCode="DE" term="%22Electron+spin%22">Electron spin</searchLink><br /><searchLink fieldCode="DE" term="%22Electron+spin+states%22">Electron spin states</searchLink><br /><searchLink fieldCode="DE" term="%22Electron+paramagnetic+resonance+spectroscopy%22">Electron paramagnetic resonance spectroscopy</searchLink><br /><searchLink fieldCode="DE" term="%22Photoinduced+electron+transfer%22">Photoinduced electron transfer</searchLink><br /><searchLink fieldCode="DE" term="%22Molecules%22">Molecules</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: The role of chirality in determining the spin dynamics of photoinduced electron transfer in donor-acceptor molecules remains an open question. Although chirality-induced spin selectivity (CISS) has been demonstrated in molecules bound to substrates, experimental information about whether this process influences spin dynamics in the molecules themselves is lacking. Here we used time-resolved electron paramagnetic resonance spectroscopy to show that CISS strongly influences the spin dynamics of isolated covalent donor–chiral bridge–acceptor (D-Bc-A) molecules in which selective photoexcitation of D is followed by two rapid, sequential electron-transfer events to yield D•+-Bc-A•–. Exploiting this phenomenon affords the possibility of using chiral molecular building blocks to control electron spin states in quantum information applications. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Science (pre-March 2025) is the property of American Association for the Advancement of Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=pbh&AN=172938739
RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1126/science.adj5328
    Languages:
      – Code: eng
        Text: English
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      Pagination:
        PageCount: 5
        StartPage: 197
    Subjects:
      – SubjectFull: Electron donors
        Type: general
      – SubjectFull: Electron spin
        Type: general
      – SubjectFull: Electron spin states
        Type: general
      – SubjectFull: Electron paramagnetic resonance spectroscopy
        Type: general
      – SubjectFull: Photoinduced electron transfer
        Type: general
      – SubjectFull: Molecules
        Type: general
    Titles:
      – TitleFull: Direct observation of chirality-induced spin selectivity in electron donor-acceptor molecules.
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            NameFull: Eckvahl, Hannah J.
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            NameFull: Tcyrulnikov, Nikolai A.
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            NameFull: Chiesa, Alessandro
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            NameFull: Bradley, Jillian M.
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            NameFull: Young, Ryan M.
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            NameFull: Krzyaniak, Matthew D.
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            NameFull: Wasielewski, Michael R.
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              Text: 10/13/2023
              Type: published
              Y: 2023
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              Value: 00368075
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              Value: 382
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              Value: 6667
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            – TitleFull: Science (pre-March 2025)
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