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Chem. Commun., 2003, 1400 - 1401, DOI: 10.1039/b302901h

Molecular recognition for stable organic radicals — 2-(6-uradinyl)-4,4,5,5-tetramethyl-4,5-dihydro-1H-imidazole-1-oxyl

Patrick Taylor, Paul R. Serwinski and Paul M. Lahti

Stable radical 2-(6-uradinyl)-4,4,5,5-tetramethyl-4,5-dihydro-1H-imidazole-1-oxyl shows antiferromagnetic spin pairing with 2J/k=–14 K, attributable to a close contact between unpaired spin density on the imidazole-type nitrogen atoms; hydrogen bonds aid dimer formation, but do not appear to play an eletronic role in the magnetic behaviour.

Graphical abstract image for this article (ID: b302901h)