富勒烯(C_(60)/C_(70))与N,N,N′,N′-四-(对甲基苯)-4,4′-二胺-1,1′-二苯碲醚电荷转移复合物的特征(英文)

CHARACTERIZATION OF THE CHARGE TRANSFER BETWEEN FULLERENES (C_(60) / C_(70)) AND N,N,N′,N′-TETRA-(P-METHYLPHENYL)-4, 4′-DIAMINO-1,1′-DIPHENYL TELLURIDE

用激光光解方法研究了富勒烯(C60/C70)与N,N,N′,N′-四-(对甲基苯)-4,4′-二胺-1,1′-二苯碲醚电荷转移复合物的特征.通过观察在近红外区瞬间吸收带,富勒烯(C60/C70)激发三线态,富勒烯(C60/C70)阴离子自由基和N,N,N′,N′-四-(对甲基苯)-4,4′-二胺-1,1′-二苯碲醚阳离子自由基的出现,测定了在苯腈溶液中从N,N,N′,N′-四-(对甲基苯)-4,4′-二胺-1,1′-二苯碲醚到富勒烯(C60/C70)激发三线态的量子转化产率和电子转移常数.

Characterization of the charge transfer between fullerenes (C_(60) / C_(70)) and N,N,N′,N′-tetra-(p-methylphenyl)-4,4′-diamino-1,1′-diphenyl telluride (TPDATe) has been studied by nanosecond laser flash photolysis. Quantum yields (Φ_(et)) and rate constants of electron transfer (k_(et)) from TPDATe to excited triplet state of fullerenes (()~3C_(60~*) / ()~3C_(70~*)) in benzonitrile have been evaluated by observing the transient absorption bands in the near-infrared region where the ()~3C_(60~*) / ()~3C_(70~*), radical anions of fullerenes (C^(·-)_(60)/ C^(·-)_(70)) and radical cation of TPDATe (TPDATe^(·+)) appear.