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

27 Citations (Scopus)

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

Fingerprint

Fluorophores
binary mixtures
Charge transfer
Tuning
tuning
charge transfer
Molecular orbitals
Naphthalene
naphthalene
Electrons
molecular orbitals
electrons
Pyrene
pyrenes
Suspensions
topology
Optical properties
Topology
Derivatives
solid state

ASJC Scopus subject areas

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

Cite this

Luminescent charge-transfer complexes : Tuning emission in binary fluorophore mixtures. / Gujrati, Maneesh D.; Kumar, N. S Saleesh; Brown, Adrienne S.; Captain, Burjor; Wilson, James N.

In: Langmuir, Vol. 27, No. 11, 07.06.2011, p. 6554-6558.

Research output: Contribution to journalArticle

Gujrati, Maneesh D. ; Kumar, N. S Saleesh ; Brown, Adrienne S. ; Captain, Burjor ; Wilson, James N. / Luminescent charge-transfer complexes : Tuning emission in binary fluorophore mixtures. In: Langmuir. 2011 ; Vol. 27, No. 11. pp. 6554-6558.
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