Loss of characteristic absorption bands of C60 conjugation systems in the addition with aliphatic amines.
The characteristic absorption bands disappear and the shortest band at approximately 244 nm in cyclohexane or 282 nm in toluene remained only with long smoothing tail as C60 reacts adequately with aliphatic amines under sunlight radiation at approximately 40 degrees C. Simultaneously, fluorescence emission shifts from a weak band initially at longer wavelength to another strong one finally at shorter wavelength. The results might imply that the pi-conjugation system of C60 parent molecule is isolated into smaller separated parts. Therefore, some possible isolation models associated with observed experimental results are designed under some reasonable assumptive conditions.
Li
Wen Juan
WJ
Department of Chemistry, Taiyuan Normal Institute, Taiyuan 030031, PR China. wjliang1980@163.com
Liang
Wen Juan
WJ
D000042:Absorption / Q000528:radiation effects; D000588:Amines / Q000737:chemistry*; D037741:Fullerenes / Q000737:chemistry* / Q000528:radiation effects; D013050:Spectrometry, Fluorescence; D013997:Time Factors; D014466:Ultraviolet Rays
D000588:Amines; D037741:Fullerenes