Tetraalkyl-p-urazines and their cation radicals

…, FA Neugebauer, C Krieger, R Siegel…

文献索引：Nelsen, Stephen F.; Kim, Yaesil; Neugebauer, Franz A.; Krieger, Claus; Siegel, Rolf; Kaftory, Menahem Journal of Organic Chemistry, 1991 , vol. 56, # 3 p. 1045 - 1051

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被引用次数: 10

摘要

X-ray structures for tetramethyl-p-urazine 1 and its dithia derivative 3 show these compounds to exist in significantly twisted boat structures with nearly planar nitrogens. The X-ray structure of the fused bicyloco-[2.2. 2loctyl derivative cation radical 4*+ is consistent with a delocalized structure having equivalent NN bonds and planar nitrogens. ESR and ENDOR data are consistent with delocalized cation radicals in solution. Cyclic ...