C60-based triads with improved electron-acceptor properties:: Pyrazolylpyrazolino[60]fullerenes

被引:55
作者
Langa, F [1 ]
de la Cruz, P
Espíldora, E
de la Hoz, A
Bourdelande, JL
Sánchez, L
Martín, N
机构
[1] Univ Castilla La Mancha, Fac CC Medio Ambiente, Dept Q Organ, Toledo 45071, Spain
[2] Univ Castilla La Mancha, Fac CC Quim, Dept Q Organ, E-13071 Ciudad Real, Spain
[3] Univ Autonoma Barcelona, Dept Quim, Unitat Quim Organ, E-08913 Bellaterra, Spain
[4] Univ Complutense, Fac Quim, Dept Quim Organ, E-28040 Madrid, Spain
关键词
D O I
10.1021/jo001755r
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
A series of triad pyrazolylpyrazolino[60]fullerenes has been prepared in one pot from suitably functionalized hydrazones by 1,3-dipolar cycloaddition reactions under microwave irradiation. The electrochemical properties of the compounds obtained were investigated by cyclic voltammmetry, and they show better electron acceptor character than the parent C-60 in all cases. Fluorescence experiments and time-resolved transition spectroscopy indicate the existence of photoinduced charge-transfer processes with the C-60 triplet acting as the acceptor.
引用
收藏
页码:5033 / 5041
页数:9
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