Stable spirocyclic neutral radicals: aluminum and gallium boraamidinates
Chivers, T., Eisler, D., Fedorchuk, C., Schatte, G., Tuononen, H., & Boeré, R. (2005). Stable spirocyclic neutral radicals: aluminum and gallium boraamidinates. Chemical Communications, (31), 3930-3932. https://doi.org/10.1039/B506253E
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© The Royal Society of Chemistry 2005. This is a final draft version of an article whose final and definitive form has been published by RSC. Published in this repository with the kind permission of the publisher.
Stable dark red (M = Al) or dark green (M = Ga) neutral radicals {[PhB(μ-NtBu)2]2M}˙ are obtained by the oxidation of their corresponding anions with iodine, and EPR spectra supported by DFT calculations show that the spin density is equally delocalized over all four nitrogen atoms in these spiroconjugated systems.
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