Direct observation of rhodamine dimer structures in water

P. Ilich, P. K. Mishra, Slobodan I Macura, Thomas P Burghardt

Research output: Contribution to journalArticle

52 Citations (Scopus)

Abstract

Self-association of rhodamine B, rhodamine 6G, and their mixture in aqueous solution has been studied by two-dimensional proton-proton nuclear Overhauser effect spectroscopy in the laboratory (NOESY) and rotating frames (ROESY). The strength of the observed cross-peaks between protons that are distant in the rhodamine monomer demonstrates intermolecular proximity between homodimers of rhodamine B and rhodamine 6G, and between heterodimers of rhodamine B and rhodamine 6G. It is shown that stacking of the xanthene rings occurs in all homo- and heterodimer interactions.

Original languageEnglish (US)
Pages (from-to)1323-1330
Number of pages8
JournalSpectrochimica Acta - Part A Molecular Spectroscopy
Volume52
Issue number10
StatePublished - 1996

Fingerprint

rhodamine B
Rhodamines
Dimers
Protons
Water
Xanthenes
Monomers
Spectroscopy
rhodamine 6G

Keywords

  • 2D proton NMR
  • Dimer conformation
  • Intermolecular distance
  • Self-association
  • Xanthene dye

ASJC Scopus subject areas

  • Engineering(all)
  • Spectroscopy

Cite this

Direct observation of rhodamine dimer structures in water. / Ilich, P.; Mishra, P. K.; Macura, Slobodan I; Burghardt, Thomas P.

In: Spectrochimica Acta - Part A Molecular Spectroscopy, Vol. 52, No. 10, 1996, p. 1323-1330.

Research output: Contribution to journalArticle

Ilich, P, Mishra, PK, Macura, SI & Burghardt, TP 1996, 'Direct observation of rhodamine dimer structures in water', Spectrochimica Acta - Part A Molecular Spectroscopy, vol. 52, no. 10, pp. 1323-1330.
Ilich, P. ; Mishra, P. K. ; Macura, Slobodan I ; Burghardt, Thomas P. / Direct observation of rhodamine dimer structures in water. In: Spectrochimica Acta - Part A Molecular Spectroscopy. 1996 ; Vol. 52, No. 10. pp. 1323-1330.
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