+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Photoinduced proton transfer coupled with energy transfer: Mechanism of sensitized luminescence of terbium ion by salicylic acid doped in polymer



Photoinduced proton transfer coupled with energy transfer: Mechanism of sensitized luminescence of terbium ion by salicylic acid doped in polymer



Journal of Chemical Physics 128(24): 244701



In the present work, excited state intramolecular proton transfer (ESIPT) in salicylic acid (SA) monoanion and subsequent sensitization of Tb(3+) ion in polyvinyl alcohol (PVA) have been studied. The study has been carried out both by steady state and time domain fluorescence measurement techniques at room temperature. It is found that the SA completely ionizes and exists as monoanion in PVA. It exhibits a large Stokes shifted blue emission (10 000 cm(-1)) due to ESIPT and shows a decay time of 6.85 ns. On the other hand, Tb(3+) ion shows a very weak green emission and a decay time of approximately 641 mus in PVA film. Upon incorporating Tb(3+) ion in SA doped PVA film, both intensity and decay time of SA decrease and sensitized emission from Tb(+3) ion along with 3.8 mus rise time is observed. Energy transfer is found to take place both from excited singlet as well as triplet states. A brief description of the properties of the present system from the viewpoint of luminescent solar collector material is addressed.

Please choose payment method:






(PDF emailed within 0-6 h: $19.90)

Accession: 054985058

Download citation: RISBibTeXText

PMID: 18601359

DOI: 10.1063/1.2918284


Related references

Effect of Substitution on the Photoinduced Intramolecular Proton Transfer in Salicylic Acid. Journal of Physical Chemistry A 101(35): 6141-6147, 1997

Particle formation, intermolecular energy transfer and unexpected luminescence quenching of terbium complexes in polymer matrix. Journal of Photochemistry and Photobiology A: Chemistry 273: 43-48, 2014

Photoinduced Ru-Yb energy transfer and sensitised near-IR luminescence in a coordination polymer containing co-crystallised [Ru(bipy)(CN)4]2- and Yb(III) units. Dalton Transactions 2004(10): 1524-1526, 2004

Study on mechanism of lanthanide sensitized fluorescence energy transfer between terbium(III)-ciprofloxacin and rhodamine B. Guang Pu Xue Yu Guang Pu Fen Xi 28(1): 153-155, 2008

Kinetics of photoinduced electron transfer between DNA bases and triplet 3,3',4,4'-benzophenone tetracarboxylic acid in aqueous solution of different pH's: proton-coupled electron transfer?. Journal of Physical Chemistry. a 116(44): 10668-10675, 2012

Luminescence energy transfer using a terbium chelate: improvements on fluorescence energy transfer. Proceedings of the National Academy of Sciences of the United States of America 91(21): 10024-8, 1994

Photoinduced Generation of Long-Lived Proton Transfer States: Photoinduced Proton Transfer from 2-(2,4-Dinitrobenzyl)pyridine to a Proton Cage, the [2.1.1] Cryptand. The Journal of Physical Chemistry A 101(37): 6850-6854, 1997

Hydrogen transfer between sulfuric acid and hydroxyl radical in the gas phase: competition among hydrogen atom transfer, proton-coupled electron-transfer, and double proton transfer. Journal of Physical Chemistry. a 110(5): 1982-1990, 2006

Real-time simulations of photoinduced coherent charge transfer and proton-coupled electron transfer. Chemphyschem 15(15): 3258-3263, 2014

Capillary electrophoresis with post-column addition of terbium and sensitized lanthanide-ion luminescence detection for the determination of diflunisal and salicylic acid. Hrc Journal Of High Resolution Chromatography. 20(12): 638-642,., 1997

Proton-Coupled Electron Transfer Reactions with Photometric Bases Reveal Free Energy Relationships for Proton Transfer. Journal of Physical Chemistry. B 120(32): 7896-7905, 2016

Molecular Mechanism of Flavin Photoprotection by Archaeal Dodecin: Photoinduced Electron Transfer and Mg 2+ -Promoted Proton Transfer. Journal of Physical Chemistry. B 121(46): 10457-10466, 2017

Structural and photophysical properties of coordination networks combining [Ru(bipy)(CN)4]2- anions and lanthanide(III) cations: rates of photoinduced Ru-to-lanthanide energy transfer and sensitized near-infrared luminescence. Inorganic Chemistry 44(13): 4656-4665, 2005

Color-tunable luminescence properties of Sm3+/Dy3+co-doped NaLa(MoO4)2phosphors and their energy transfer mechanism. Journal of Materials Science 52(11): 6310-6321, 2017

Proton-Coupled Electron-Transfer Processes in Ultrafast Time Domain: Evidence for Effects of Hydrogen-Bond Stabilization on Photoinduced Electron Transfer. Chemistry 23(14): 3455-3465, 2017