Journal
LUMINESCENCE
Volume 35, Issue 3, Pages 373-378Publisher
WILEY
DOI: 10.1002/bio.3736
Keywords
luminescence; pH probe; terpyridine; Troger's base
Categories
Funding
- Fundamental Research Funds for the Central Universities
- National Natural Science Foundation of China [51403157]
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A new pH-dependent fluorescence probe 2,8-bis((E)-4-([2,2 ':6 ',2 ''-terpyridin]-4 '-yl)styryl)-6H,12H-5,11-methanodibenzo[b,f][1,5]diazocine (TBPTP) based on Troger's base (TB) bound to terpyridine was designed and synthesized. Photophysical properties and titration experiments of TBPTP were investigated by absorption and fluorescence spectroscopy. TBPTP exhibited high sensitivity in an acidic environment with the working pH range 7.2-2.5, especially having a good liner response to pH changes in the range 2.5-4.3, which suggested that TBPTP is a good candidate for pH monitoring.
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