Cucurbituril-assisted transformation of nitronyl nitroxide into imino nitroxide in the solid state
作者:Kira E. Vostrikova、Eugenia V. Peresypkina、Valery A. Drebushchak
DOI:10.1039/c0ce00504e
日期:——
A nitronyl nitroxide, 2-(2-benzimidazolyl)-4,4,5,5-tetramethylimidazolidinyl-3-oxide-1-oxy, 1, is included in cucurbit[8]uril (CB8) and cucurbit[7]uril (CB7) as itshydrochloride to give water soluble complexes. At high temperature (>150 °C) in the solid state, these complexes are stable but the paramagnetic guest is irreversibly converted into 2-(2-benzimidazolyl)-4,4,5,5-tetramethylimidazolidinyl-1-oxy