Photoreactions of Sc3N@C80 with Disilirane, Silirane, and Digermirane: A Photochemical Method to Separate Ih and D5h Isomers

Kako M, Miyabe K, Fukazawa S, Kanzawa S, Yasui M, Yamada M, Maeda Y, Slanina Z, Uhlík F, Adamowicz L, Papadopoulos I, Guldi DM, Furukawa M, Nagase S, Akasaka T (2022)

Publication Type: Journal article

Publication year: 2022

Journal

Photochem MDPI

Book Volume: 2

Pages Range: 122-137

Journal Issue: 1

DOI: 10.3390/photochem2010010

Abstract

Under photoirradiation, Sc3N@Ih-C80 reacted readily with disilirane 1, silirane 4, and digermirane 7 to afford the corresponding 1:1 adducts, whereas Sc3N@D5h-C80 was recovered without producing those adducts. Based on these results, we described a novel method for the exclusive separation of Ih and D5h isomers of Sc3N@C80. The method includes three procedures: selective derivatization of Sc3N@Ih-C80 using 1, 4, and 7, facile HPLC separation of pristine Sc3N@D5h-C80 and Sc3N@Ih-C80 derivatives, and thermolysis of Sc3N@Ih-C80 derivatives to collect pristine Sc3N@Ih-C80. In addition, laser flash photolysis experiments were conducted to elucidate the reaction mechanism. Decay of the transient absorption of 3Sc3N@Ih-C80* was observed to be enhanced in the presence of 1, indicating the quenching process. When Sc3N@D5h-C80 was used, the transient absorption was much less intensive. Therefore, the quenching of 3Sc3N@D5h-C80* by 1 could not be confirmed. Furthermore, we applied time-dependent density functional theory (TD-DFT) calculations of the photoexcited states of Sc3N@C80 to obtain insights into the reaction mechanism.

Authors with CRIS profile

Ilias Papadopoulos Lehrstuhl für Physikalische Chemie I Dirk Michael Guldi Lehrstuhl für Physikalische Chemie I

Involved external institutions

Tokyo Gakugei University / 東京学芸大学 JP Japan (JP) University of Electro-Communications / 電気通信大学 (Denki-Tsūshin Daigaku) JP Japan (JP) Huazhong University of Science & Technology CN China (CN) Foundation for Advancement of International Science (FAIS) / 公益財団法人国際科学振興財団 JP Japan (JP) Kyoto University / 京都大学 Kyōto daigaku JP Japan (JP) Univerzita Karlova v Praze / Charles University in Prague CZ Czech Republic (CZ)

How to cite

APA:

Kako, M., Miyabe, K., Fukazawa, S., Kanzawa, S., Yasui, M., Yamada, M.,... Akasaka, T. (2022). Photoreactions of Sc3N@C80 with Disilirane, Silirane, and Digermirane: A Photochemical Method to Separate Ih and D5h Isomers. Photochem, 2(1), 122-137. https://doi.org/10.3390/photochem2010010

MLA:

Kako, Masahiro, et al. "Photoreactions of Sc3N@C80 with Disilirane, Silirane, and Digermirane: A Photochemical Method to Separate Ih and D5h Isomers." Photochem 2.1 (2022): 122-137.

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