Trinuclear gold(I) triazolates: A new class of wide-band phosphors and sensors

Chi Yang, Marc Messerschmidt, Philip Coppens, Mohammad A. Omary

Research output: Contribution to journalArticle

61 Scopus citations

Abstract

A new cyclic gold(I) triazolate trimer, [Au(3,5-i-Pr2Tz)] 3 (1), exhibits fully overlapping aurophilically bonded dimer-of-trimer units that lead to multiple phosphorescence bands in both the solid state and solution. The conformation of the hexanuclear unit exhibits reversible interconversion between C2 and D3 effective symmetries, depending on the crystal temperature or solution concentration, the variation of which leads to isoemissive and isosbestic points. Solutions of 1 exhibit remarkable quenching properties that demonstrate molecular recognition with high selectivity and hypersensitivity for some reagents, as influenced by protonation via Brønsted acids, π intercalation, and/or energy transfer. The quenched phosphorescence of 1 by acetic acids can be regenerated by NEt3.

Original languageEnglish (US)
Pages (from-to)6592-6594
Number of pages3
JournalInorganic chemistry
Volume45
Issue number17
DOIs
StatePublished - Aug 21 2006
Externally publishedYes

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry

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