Photophysical and photochemical properties of bis-silylated C60 derivatives

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Publication Date
DOI 10.1039/A902939G
Impact Factor 3.676
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Abstract

Photophysical and photochemical properties of bis-silylated C60 derivatives have been examined using steady-state and time-resolved spectroscopies. Absorption band edges of 1,2- and 1,4-bis-silylated C60 derivatives ranged to about 800 nm. Fluorescence quantum yields of 1,2- and 1,16-adducts were slightly larger than that of C60, while 1,4-adducts did not show fluorescence. By laser irradiation to the bis-silylated C60 derivatives, transient absorption bands due to their triplet excited states were confirmed in the visible and near-IR regions. Photoinduced electron transfer from electron donor to excited triplet states of bis-silylated C60 derivatives was also confirmed in transient absorption spectra. The acceptor-abilities of the excited triplet states changed with the position of the C60-silicon bonds, which can be explained mainly on the basis of reduction potentials and triplet energies of the bis-silylated C60 derivatives.

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Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
CiteScore: 5.5
Self-citation Rate: 10.3%
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Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.

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