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PreprintCC BY-NC-NDChemRxiv

Fully Deuterated [9]Cycloparaphenylene: Vibrational Modulation for Enhanced Solid-State Fluorescence

  • Kenshiro Kusumi1
  • Masaya Sugiura1
  • Hidetoshi Kawai1
  • Yoshitaka Tsuchido1
  1. 1Department of Chemistry, Faculty of Science, Tokyo University of Science, 1–3 Kagurazaka, Shinjuku-ku, Tokyo, Japan, 162-8601
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Abstract

Fully deuterated [9]cycloparaphenylene ([9]CPP- d 36 ) was synthesized by gold-mediated macrocyclization. Although the molecular geometry and π-electronic structure of [9]CPP were retained, the framework vibrational frequencies were lowered. Solid-state [9]CPP- d 36 showed a higher fluorescence quantum yield than [9]CPP (0.46 vs 0.34), demonstrating H/D substitution as a vibrational-modulation approach for enhancing nanohoop fluorescence.

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Cite

BibTeXRIS
BibTeX
@misc{kusumi2026fully,
  title = {{Fully Deuterated [9]Cycloparaphenylene: Vibrational Modulation for Enhanced Solid-State Fluorescence}},
  author = {Kenshiro Kusumi and Masaya Sugiura and Hidetoshi Kawai and Yoshitaka Tsuchido},
  howpublished = {ChemRxiv},
  year = {2026},
  month = sep,
  doi = {10.26434/chemrxiv.15008978/v1},
  url = {https://chemrxiv.org/doi/full/10.26434/chemrxiv.15008978/v1},
  note = {CC BY-NC-ND},
}
RIS
TY  - UNPB
TI  - Fully Deuterated [9]Cycloparaphenylene: Vibrational Modulation for Enhanced Solid-State Fluorescence
AU  - Kenshiro Kusumi
AU  - Masaya Sugiura
AU  - Hidetoshi Kawai
AU  - Yoshitaka Tsuchido
PY  - 2026
DA  - 2026/09/17
PB  - ChemRxiv
DO  - 10.26434/chemrxiv.15008978/v1
UR  - https://chemrxiv.org/doi/full/10.26434/chemrxiv.15008978/v1
AB  - Fully deuterated [9]cycloparaphenylene ([9]CPP- d 36 ) was synthesized by gold-mediated macrocyclization. Although the molecular geometry and π-electronic structure of [9]CPP were retained, the framework vibrational frequencies were lowered. Solid-state [9]CPP- d 36 showed a higher fluorescence quantum yield than [9]CPP (0.46 vs 0.34), demonstrating H/D substitution as a vibrational-modulation approach for enhancing nanohoop fluorescence.
ER  -