Triplet State and Dynamics of Photoexcited C
                        70

Haim Levanon; Vladimir Meiklyar; Shalom Michaeli; Dan Gamliel

doi:10.1021/ja00072a027

Triplet State and Dynamics of Photoexcited C ₇₀

Haim Levanon, Vladimir Meiklyar, Shalom Michaeli, Dan Gamliel

Radiology

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27 Scopus citations

Abstract

The photoexcited triplet of C ₇₀ , in toluene, was investigated by time-resolved EPR spectroscopy. Over the entire range of temperatures (8–213 K) the resulting early-time signal is attributed to the polarized EPR triplet spectrum, which evolves in time into a thermalized spectrum. Similar to the case of ³ C ₆₀ , the narrow liquid-phase spectrum is due to rotational narrowing of the thermal triplet. At both low and high temperatures the results indicate the coexistence of two triplets, differing greatly in their relaxation rates.

Original language	English (US)
Pages (from-to)	8722-8727
Number of pages	6
Journal	Journal of the American Chemical Society
Volume	115
Issue number	19
DOIs	https://doi.org/10.1021/ja00072a027
State	Published - Sep 1 1993

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abstract = " The photoexcited triplet of C 70 , in toluene, was investigated by time-resolved EPR spectroscopy. Over the entire range of temperatures (8–213 K) the resulting early-time signal is attributed to the polarized EPR triplet spectrum, which evolves in time into a thermalized spectrum. Similar to the case of 3 C 60 , the narrow liquid-phase spectrum is due to rotational narrowing of the thermal triplet. At both low and high temperatures the results indicate the coexistence of two triplets, differing greatly in their relaxation rates.",

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AU - Michaeli, Shalom

AU - Gamliel, Dan

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Y1 - 1993/9/1

N2 - The photoexcited triplet of C 70 , in toluene, was investigated by time-resolved EPR spectroscopy. Over the entire range of temperatures (8–213 K) the resulting early-time signal is attributed to the polarized EPR triplet spectrum, which evolves in time into a thermalized spectrum. Similar to the case of 3 C 60 , the narrow liquid-phase spectrum is due to rotational narrowing of the thermal triplet. At both low and high temperatures the results indicate the coexistence of two triplets, differing greatly in their relaxation rates.

AB - The photoexcited triplet of C 70 , in toluene, was investigated by time-resolved EPR spectroscopy. Over the entire range of temperatures (8–213 K) the resulting early-time signal is attributed to the polarized EPR triplet spectrum, which evolves in time into a thermalized spectrum. Similar to the case of 3 C 60 , the narrow liquid-phase spectrum is due to rotational narrowing of the thermal triplet. At both low and high temperatures the results indicate the coexistence of two triplets, differing greatly in their relaxation rates.

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Triplet State and Dynamics of Photoexcited C ₇₀

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