Bifunctional photochromism based on photoinduced nitro-assisted proton transfer

Panče Naumov, Kenji Sakurai, Yuji Ohashi, Seik Weng Ng

Research output: Contribution to journalArticle

Abstract

The preparation, spectroscopy, structure, and solid-state photochromism of the first photoactive bifunctional molecule based on the ortho-nitrobenzyl- pyridine (NBP) unit was carried out. NBP was found capable of nitro-assisted proton transfer (NAPT) and could serve as a prototypic compound for a new concept of design of nitro-based polystable switching materials. The visible absorption maximum of the colored form of the dimer is strongly red-shifted from the respective monomer and appeared at the highest wavelength. The low-temperature photactivity of the monoclinic form, whose molecular conformation was unfavorable for proton transfer, was due to latent photochromism caused by radical reactions.

Original languageEnglish (US)
Pages (from-to)5394-5397
Number of pages4
JournalChemistry of Materials
Volume17
Issue number22
DOIs
StatePublished - Nov 1 2005

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Chemistry

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