稳定的螺环中性自由基：铝和镓硼脒基化合物。
Stable spirocyclic neutral radicals: aluminium and gallium boraamidinates.
作者信息
Chivers Tristram, Eisler Dana J, Fedorchuk Chantall, Schatte Gabriele, Tuononen Heikki M, Boeré René T
机构信息
Department of Chemistry, University of Calgary, Calgary, Alberta, Canada T2N 1N4.
出版信息
Chem Commun (Camb). 2005 Aug 21(31):3930-2. doi: 10.1039/b506253e. Epub 2005 Jul 11.
DOI:10.1039/b506253e
PMID:16075075
Abstract
Stable dark red (M = Al) or dark green (M = Ga) neutral radicals {[PhB(mu-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.
摘要
通过用碘氧化其相应的阴离子，可得到稳定的暗红色（M = Al）或深绿色（M = Ga）中性自由基{[PhB(μ-NtBu)₂]₂M}，并且由密度泛函理论（DFT）计算支持的电子顺磁共振（EPR）光谱表明，在这些螺共轭体系中，自旋密度在所有四个氮原子上均等地离域。
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