Ionic manipulation of charge-transfer and photodynamics of [60]fullerene confined in pyrrolo-tetrathiafulvalene cage

Steffen Bähring, Karina R. Larsen, Mustafa Supur, Kent A. Nielsen, Thomas Poulsen, Kei Ohkubo, Craig W. Marlatt, Eigo Miyazaki, Kazuo Takimiya, Amar H. Flood, Shunichi Fukuzumi, Jan O. Jeppesen

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

A cage molecule incorporating three electron donating monopyrrolotetrathiafulvalene units was synthesised to host electron accepting [60]fullerenes. Formation of a strong 1:1 donor-acceptor (D-A) complex C60⊂1 was confirmed by solid state X-ray analysis as well as 1H NMR and absorption spectroscopic analyses of the arising charge-transfer (CT) band (λ = 735 nm, ϵ ≈ 840 M-1 cm-1). Inserting Li+ inside the [60]fullerene increased the binding 28-fold (Ka = 3.7 × 106 M-1) and a large bathochromic shift of the CT band to the near infrared (NIR) region (λ = 1104 nm, ϵ ≈ 4800 M-1 cm-1) was observed.

Original languageEnglish
Pages (from-to)9898-9901
Number of pages4
JournalChemical Communications
Volume53
Issue number71
DOIs
Publication statusPublished - 2017

ASJC Scopus subject areas

  • Catalysis
  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Chemistry(all)
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

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