2-[(2E)-3-(4-tert-butylphenyl)-2-methylprop-2-enylidene]malononitrile (DCTB, dicyano..tert-butyl ...) has proven to be an excellent nonprotic matrix for very labile compounds, especially for substituted fullerenes. This is mainly due to its extremely low onset of ion production. This matrix works mainly as an electron transfer agent, i.e. the ions produced are radical anions or cations, respectively. It works equally well to transfer evaporation energy to charged oligomers and with proton labile compounds (not shown here).
Thermolysis of several sulfonyl azides in the presence of C 60 leads either to aza[60]fulleroids or to mixtures of aza[60]-fulleroids and corresponding aziridino-fullerenes, depending on the substituent at the sulfonyl group. In all cases, 1,2-closed aziridino-fullerenes can be obtained from azafulleroids by irradiation. Addition of sulfonyl azides to C 70 only
Fullerene derivativesFullerene derivatives Q 1145 Functionalization of [60]Fullerene and of [60]Fullerene Monoadducts by Photochemical Cycloaddition of 4-Methyl-1,2,4-triazoline-3,5-dione. -(ULMER, L.; SIEDSCHLAG, C.; MATTAY*, J.; Eur.
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