Direct Observation of Chirality-Induced Spin Selectivity in Electron Donor-Acceptor 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 use time-resolved electron paramagnetic resonance spectroscopy to show that CISS strongly influences the spin dynamics of isolated covalent donor-chiral bridge-acceptor (D-B$\chi$-A) molecules in which selective photoexcitation of D is followed by two rapid, sequential electron transfer events to yield D${}^{+}$-B$\chi$-A${}^{-}$. Exploiting this phenomenon affords the possibility of using chiral molecular building blocks to control electron spin states in quantum information applications.

References in corpus (5)

• Chirality Induced Spin Selectivity -- The Role of Electron Correlations
• Direct Observation of Chirality-Induced Spin Selectivity in Electron Donor-Acceptor Molecules
• The origin of chirality induced spin selectivity in photo-induced electron transfer
• Role of Exchange Interactions in the Magnetic Response and Intermolecular Recognition of Chiral Molecules
• Chirality Induced Spin Coherence in Electron Transfer Reactions

Cited by in corpus (16)

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• Mind the Gap: From Resolving Theoretical Foundations of Chiral(ity)-Induced Spin Selectivity to Pioneering Implementations in Quantum Sensing
• Anomalous Magnetoresistance beyond the Jullière Model for Spin Selectivity in Chiral Molecules
• Quantum Information Processing with Molecular Nanomagnets: an introduction
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• Charge and Spin Dynamics and Destabilization of Shallow Nitrogen-Vacancy Centers under UV and Blue Excitation
• Filtering Spin and Orbital Moment in Centrosymmetric Systems
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• Spinterface-like mechanism of the chirality-induced spin selectivity in donor chiral-bridge acceptor complexes
• Engineering chiral-induced spin selectivity in an artificial topological quantum well
• How Symmetry Governs the Dihedral Angle Dependence of Intermolecular Spin-Orbit Coupling
• Unconventional Spin Valve Based on Normal Metal/Chiral Molecule/Altermagnet Junctions