Bifunctional photochromism based on photoinduced nitro-assisted proton transfer

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

Research output: Contribution to journalArticlepeer-review


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
Issue number22
StatePublished - Nov 1 2005

ASJC Scopus subject areas

  • General Chemistry
  • General Chemical Engineering
  • Materials Chemistry


Dive into the research topics of 'Bifunctional photochromism based on photoinduced nitro-assisted proton transfer'. Together they form a unique fingerprint.

Cite this