EXCITED-STATE BEHAVIOR AND ONE-ELECTRON REDUCTION OF C-60 IN AQUEOUS GAMMA-CYCLODEXTRIN SOLUTION

被引：57

作者：

DIMITRIJEVIC, NM

KAMAT, PV

机构：

[1] Radiation Laboratory, University of Notre Dame, Notre Dame

来源：

JOURNAL OF PHYSICAL CHEMISTRY | 1993年 / 97卷 / 29期

关键词：

D O I：

10.1021/j100131a035

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Excited-state properties and one-electron reduction of C60 in aqueous gamma-cyclodextrin (gamma-CD) solutions have been studied by laser flash photolysis and pulse radiolysis techniques. The difference absorption spectrum of C60- anion radical in aqueous gamma-CD solution has been characterized by reducing C60 with radiolytically produced radicals (e(aq)-, (CH3)2COH or MV.+). The one-electron reduction potential of the ground-state C60 in aqueous gamma-cyclodextrin solution (E-degrees = -0.25 V vs NHE) has been measured by equilibrating fullerene solution with MV2+/MV.+ couple. Inorganic anions, such as N3-, I-, NO2-, ClO2- and SCN-, quench the excited triplet C60 and participate in the electron-transfer process.

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页码：7623 / 7626

页数：4

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