Mass spectrometric identification of multicage fullerene cycloadductsстатья
Информация о цитировании статьи получена из
Web of Science
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 29 мая 2015 г.
Аннотация:Multicage fullerene cycloadducts have been detected by MALDI mass spectrometry; they have been found as admixtures in the products of reactions of the trifluoromethylation of fullerene samples doped with metallic sodium, the reaction between fullerenes and a mixture of trifluoromethylfullerenes, and the synthesis of fulleroproline esters. As a result, over 75 new compounds of this type have been identified. The optimization of the synthesis procedures and chromatographic fractionation allowed us to extract five compounds in the pure form: (C(60))(2)(CF(2))(2)(CF(3))(8), (C(60))(2)(CF(2))(2)(CF(3))(3)C(2)F(5), (C(60))(2)(CF(2))(2)(CF(3))(5)C(2)F(5), (C(60))(2)(CF(2))(2)(CF(3))(2)O, and C(60)CH(2)N(CH(2)C(60))CCOOtBu. Chemical structures of two of them, proposed on the basis of post source decay mass spectra, have been further confirmed by NMR spectra.