Nitroxide Spin Labels for Exploring Relationships Between Molecular Structure, Microenvironment and EPR Parameters: A Mini-review Dedicated to Carlo Corvaja

This mini-review is dedicated to Carlo Corvaja (University of Padova) in recognition of his important contributions to the study of biomimetic donor–acceptor model dyads and triads and to the understanding of spin exchange in excited fullerene–nitroxide derivatives. We report on attractive examples...

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Bibliographic Details
Published in:Applied magnetic resonance 2024-12, Vol.55 (12), p.1481-1514
Main Authors: Möbius, Klaus, Savitsky, Anton, Plato, Martin, Lubitz, Wolfgang
Format: Article
Language:English
Subjects:
Atoms and Molecules in Strong Fields
Carotenoids
Chemistry
Chlorophyll
Cultural heritage
Electrons
Energy
Fullerenes
Galilei, Galileo
Interaction parameters
Laser Matter Interaction
Lasers
Macromolecules
Medical research
Middle Ages
Molecular structure
Organic Chemistry
Physical Chemistry
Physics
Physics and Astronomy
Review
Solid State Physics
Spectroscopy/Spectrometry
Spin dynamics
Spin exchange
Teaching
Theater
Triplets
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Summary:This mini-review is dedicated to Carlo Corvaja (University of Padova) in recognition of his important contributions to the study of biomimetic donor–acceptor model dyads and triads and to the understanding of spin exchange in excited fullerene–nitroxide derivatives. We report on attractive examples of multi-frequency and multi-resonance EPR spectroscopy, highlighting recent work in Padova and Berlin/Mülheim. The examples selected include TR-EPR, ENDOR, and EDNMR experiments on photoexcited spin-labeled macromolecules, such as fullerene–nitroxide complexes or photosynthetic bacterial reaction centers, which were optionally NO spin-labeled. From the spin interaction parameters measured, detailed information about structure and dynamics of macromolecules embedded in liquid-solution or solid-state microenvironments could be extracted.
ISSN:0937-9347
1613-7507
DOI:10.1007/s00723-024-01713-4