Photophysics of Open C60 Derivatives
Photophysics of Open C60 Derivatives
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开放式 C60 衍生物的光物理学
DOI：
10.1021/jp001358k
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发表时间：
2000
影响因子：
3.3
通讯作者：
C. Foote
中科院分区：
文献类型：
--
作者：
R. Stackow;G. Schick;T. Jarrosson;A. Rubin;C. Foote
在本报告中，我们研究了两种新型 C60 衍生物的光物理性质。这些化合物由开环 C60 衍生物 (2) 及其二氢前体 (1) 组成，两者均包含孔口。记录了两种衍生物的基态吸收光谱和三重态吸收光谱。计算了基态吸收 (e) 和三重激发态 (ΔeT-T) 的消光系数。该衍生物的三重态能量（ET）低于C60，三重态量子产率（φT）也略低于C60。这些化合物仍然是形成单线态氧的良好光敏剂，具有高量子产率 (φΔ)。因此，在许多方面，这些带有孔口的巴基球的光物理学仍然类似于原始的富勒烯。
In this report we examine the photophysical properties of two novel C60 derivatives. These compounds consist of a ring-opened C60 derivative (2) and its dihydro precursor (1), both of which include an orifice. The ground-state absorption spectra and the triplet−triplet absorption spectra were recorded for both derivatives. Extinction coefficients for the ground-state absorption (e) and the triplet excited state (ΔeT-T) were calculated. The derivatives have triplet energies (ET) lower than that of C60, and the triplet quantum yields (φT) are somewhat lower than that of C60. These compounds remain good photosensitizers for the formation of singlet oxygen, with high quantum yields (φΔ). Thus, in many respects the photophysics of these buckyballs with an orifice still resemble pristine fullerenes.