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What Does It Take for an Organic Closed Shell Molecule to Become Magnetic?
1Department of Physics and Astronomy, Uppsala University, Box 516, 752 37 Uppsala, Sweden.
The Journal of Physical Chemistry Letters
|November 17, 2025
Summary
Chiral closed-shell organic molecules can exhibit magnetic properties when interfaced with a reservoir, challenging traditional views of molecular magnetism. This interaction is key to understanding the chirality-induced spin selectivity effect.
Area of Science:
- Molecular magnetism
- Organic electronics
- Condensed matter physics
Background:
- Molecular magnetism traditionally involves metal-organic frameworks and organic radicals.
- Recent experiments show magnetic properties in closed-shell organic molecules interfaced with reservoirs.
- Chirality-induced spin selectivity (CISS) effects have been observed with chiral closed-shell molecules.
Purpose of the Study:
- To explore the magnetic properties of closed-shell organic molecules.
- To investigate the role of molecular structure and reservoir interaction in CISS effects.
- To propose a theoretical framework for understanding CISS beyond uncorrelated electron models.
Main Methods:
- Theoretical perspective on molecular magnetism.
- Analysis of experimental findings in CISS.
- Discussion of electron correlation and spin configurations.
Main Results:
- Closed-shell organic molecules can exhibit magnetic phenomena when interfaced with a reservoir.
- The CISS effect is intrinsically linked to stabilized spin configurations within the chiral molecule.
- Existing theoretical models based on uncorrelated electrons are insufficient.
Conclusions:
- The study redefines the scope of molecular magnetism to include closed-shell organic systems.
- Stabilized spin configurations are crucial for understanding CISS effects.
- Future theoretical models must account for electron correlation in chiral systems.
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