Luminescent charge-transfer complexes: Tuning emission in binary fluorophore mixtures

Maneesh D. Gujrati, N. S.Saleesh Kumar, Adrienne S. Brown, Burjor Captain, James N. Wilson

Research output: Contribution to journalArticle

28 Scopus citations

Abstract

Charge-transfer (CT) complexes composed of a π-electron-poor naphthalene diimide (NDI) derivative combined with a series of π-electron-rich donors were investigated. Solutions of the CT complexes are nonemissive; however, solid-state complexes and aqueous suspensions display emission that is dependent on the energy of the HOMO of the electron donor. Crystallographic analysis of a pyrene-NDI complex reveals columnar packing and a high degree of frontier molecular orbital (FMO) overlap that likely contributes to the observed optical properties. The fluorescent CT particles are utilized as imaging agents; additional luminescent CT complexes may be realized by considering FMO energies and topologies.

Original languageEnglish (US)
Pages (from-to)6554-6558
Number of pages5
JournalLangmuir
Volume27
Issue number11
DOIs
StatePublished - Jun 7 2011

    Fingerprint

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Spectroscopy
  • Electrochemistry

Cite this