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Updated: Aug 8, 2026

Isolating Free Carbenes, their Mixed Dimers and Organic Radicals
Published on: April 19, 2019
Locking down the electronic structure of (monopyrrolo)tetrathiafulvalene in [2]rotaxanes
Amar H Flood1, Sune Nygaard, Bo W Laursen
1California NanoSystems Institute and Department of Chemistry and Biochemistry, University of California, Los Angeles, 90095-1569, USA. aflood@indiana.edu
Abstract:
[reaction: see text] The redox potentials of a highly constrained [2]rotaxane have been measured and used to model the energy of the HOMO of tetrathiafulvalene-based bistable [2]rotaxanes in their two co-conformationally isomeric states. Restrained from co-conformational movements, the measured oxidation and reduction potentials provide insights into the orbital energies and electronic structure of a (monopyrrolo)tetrathiafulvalene unit when encircled by a tetracationic cyclobis(paraquat-p-phenylene) ring.
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