A Stable, Soluble, and Crystalline Supramolecular System with a Triplet Ground State

Tsukasa Futagoishi, Tomoko Aharen, Tatsuhisa Kato, Azusa Kato, Toshiyuki Ihara, Tomofumi Tada, Michihisa Murata, Atsushi Wakamiya, Hiroshi Kageyama, Yoshihiko Kanemitsu, Yasujiro Murata

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

A supramolecular complex was constructed by encapsulation of a 3 O 2 molecule inside an open-cage C 60 derivative. Its single-crystal X-ray diffraction analysis revealed the presence of the 3 O 2 at the center of the fullerene cage. The CV measurements suggested that unprecedented dehydrogenation was promoted by the encapsulated 3 O 2 after two-electron reduction. The ESR measurements displayed the triplet character as well as the anisotropy of the 3 O 2 . Additionally, the SQUID measurements also demonstrated the paramagnetic behavior above 3 K without an antiferromagnetic transition. Upon photoirradiation with visible light, three phosphorescent bands at the NIR region were observed, arising from the exited 1 O 2 generated by self-sensitization with the outer cage, whose lifetimes were not affected by the environments. These studies confirmed that the complex is a crystalline triplet system with incompatible “high spin density” but “small interspin interaction” properties.

Original languageEnglish
Pages (from-to)4261-4265
Number of pages5
JournalAngewandte Chemie - International Edition
Volume56
Issue number15
DOIs
Publication statusPublished - Jan 1 2017
Externally publishedYes

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Ground state
Crystalline materials
Fullerenes
SQUIDs
Dehydrogenation
Encapsulation
X ray diffraction analysis
Paramagnetic resonance
Anisotropy
Single crystals
Derivatives
Molecules
Electrons

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)

Cite this

A Stable, Soluble, and Crystalline Supramolecular System with a Triplet Ground State. / Futagoishi, Tsukasa; Aharen, Tomoko; Kato, Tatsuhisa; Kato, Azusa; Ihara, Toshiyuki; Tada, Tomofumi; Murata, Michihisa; Wakamiya, Atsushi; Kageyama, Hiroshi; Kanemitsu, Yoshihiko; Murata, Yasujiro.

In: Angewandte Chemie - International Edition, Vol. 56, No. 15, 01.01.2017, p. 4261-4265.

Research output: Contribution to journalArticle

Futagoishi, T, Aharen, T, Kato, T, Kato, A, Ihara, T, Tada, T, Murata, M, Wakamiya, A, Kageyama, H, Kanemitsu, Y & Murata, Y 2017, 'A Stable, Soluble, and Crystalline Supramolecular System with a Triplet Ground State', Angewandte Chemie - International Edition, vol. 56, no. 15, pp. 4261-4265. https://doi.org/10.1002/anie.201701212
Futagoishi, Tsukasa ; Aharen, Tomoko ; Kato, Tatsuhisa ; Kato, Azusa ; Ihara, Toshiyuki ; Tada, Tomofumi ; Murata, Michihisa ; Wakamiya, Atsushi ; Kageyama, Hiroshi ; Kanemitsu, Yoshihiko ; Murata, Yasujiro. / A Stable, Soluble, and Crystalline Supramolecular System with a Triplet Ground State. In: Angewandte Chemie - International Edition. 2017 ; Vol. 56, No. 15. pp. 4261-4265.
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