L. Catala et al., Pyrazol-4-yl-substituted alpha-nitronyl and alpha-imino nitroxide radicalsin solution and solid states, POLYHEDRON, 20(11-14), 2001, pp. 1563-1569
The synthesis, solution studies, X-ray structures and magnetic properties o
f two new radical derived pyrazole ligands, based on alpha -nitronyl and im
ino nitroxides are reported. The spin distribution on the radicals has been
studied in solution using EPR spectroscopy on dilute solutions. In concent
rated solutions the radicals form aggregates in solution in which the magne
tic interactions have been studied using low-temperature EPR spectroscopy.
(C) 2001 Elsevier Science Ltd. All rights reserved.