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For the first time a pyrrolidinofullerene salt containing a spiropyran group and an ammonium group, capable of reversibly reacting to UV radiation, has been synthesized. Photoinduced reactions of the synthesized compounds were studied using absorption and luminescence spectroscopies, spectral and kinetic characteristics were measured. The hybrid molecule was found to exhibit intrinsic fluorescence even in the spirocyclic form. The C60 derivative showed a higher stability and better spectral and luminescent properties than the precursor. [ABSTRACT FROM AUTHOR]

New salts of photochromic indoline spiropyrans capable of reversibly responding to UV radiation were synthesized to develop light-controlled materials. Photoinduced reactions of the synthesized compounds were studied using absorption and luminescence spectroscopies, and the quantum yields of photoisomerization and other spectral and kinetic characteristics were measured. It was shown that the light sensitivity and photostability of the synthesized compounds are considerably influenced by the length of the spacer between the indole and ammonium nitrogen atoms. [ABSTRACT FROM AUTHOR]

The reaction of fullerene C60 with cyanoacrylates and ethylmagnesium bromide in the presence of stoichiometric amounts of titanium(IV) isopropoxide was studied for the first time. Under the developed conditions, cyanoacrylates, unlike carboxylic acid esters and nitriles, were found to react with C60 to form aminofullerocyclopropanes, which are otherwise difficult to access. [ABSTRACT FROM AUTHOR]

The reaction of [60]fullerene with isonitriles and EtMgBr in the presence of Ti(O i -Pr) 4 as the catalyst was studied for the first time. It was found that isonitriles react with C 60 under previously reported conditions to afford previously inaccessible N -substituted amino methanofullerenes. [ABSTRACT FROM AUTHOR]