Interfullerene Electronic Interactions and Excited-State Dynamics in Fullerene Dumbbell Conjugates

Chai Y, Liu L, Xu Y, Liu X, Wang C, Bo Y, Zhang Y, Wang Z, Weng Y, Guldi DM, Wu B, Wang C (2023)

Publication Type: Journal article

Publication year: 2023

Journal

Journal of the American Chemical Society American Chemical Society

Book Volume: 145

Pages Range: 14190-14195

Journal Issue: 26

DOI: 10.1021/jacs.3c03486

Abstract

Several dumbbell conjugates featuring M3N@Ih-C80 (M = Sc, Y) and C60 were prepared to systematically investigate interfullerene electronic interactions and excited state dynamics. From electrochemical investigations, we concluded that the redox potentials of our M3N@Ih-C80 (M = Sc, Y) dumbbells depend largely on the interfullerene electronic interactions. Assisted by DFT calculation, the unique role of metal atoms was highlighted. Most importantly, ultrafast spectroscopy experiments revealed symmetry-breaking charge separation in Sc3N@C80-dumbbell to yield an unprecedented (Sc3N@C80)•+-(Sc3N@C80)•- charge separated state. This is, to the best of our knowledge, the first time that symmetry-breaking charge separation following photoexcitation is corroborated in a fullerene system. As such, our work shed light on the significance of interfullerene electronic interactions and their uniqueness for modulating excited state properties.

Authors with CRIS profile

Yifan Bo Lehrstuhl für Physikalische Chemie I Dirk Michael Guldi Lehrstuhl für Physikalische Chemie I

Additional Organisation(s)

FAU Profilzentrum Licht.Materie.Quantentechnologien (FAU LMQ)

Involved external institutions

Chinese Academy of Sciences (CAS) / 中国科学院 CN China (CN) Institute of Physics (IOP) / 中国科学院物理研究所 CN China (CN)

How to cite

APA:

Chai, Y., Liu, L., Xu, Y., Liu, X., Wang, C., Bo, Y.,... Wang, C. (2023). Interfullerene Electronic Interactions and Excited-State Dynamics in Fullerene Dumbbell Conjugates. Journal of the American Chemical Society, 145(26), 14190-14195. https://doi.org/10.1021/jacs.3c03486

MLA:

Chai, Yongqiang, et al. "Interfullerene Electronic Interactions and Excited-State Dynamics in Fullerene Dumbbell Conjugates." Journal of the American Chemical Society 145.26 (2023): 14190-14195.

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