Journal
JOURNAL OF LUMINESCENCE
Volume 145, Issue -, Pages 895-898Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jlumin.2013.09.008
Keywords
Triphenylamine; Benzimidazole; Chemosensor; Benzothiazole; ASE
Categories
Funding
- NSFC [51172224, 51103145]
- Science and Technology Developing Project of Jilin Province [20100533, 201201009]
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Triphenylamine based fluorescent dyes TPA-benzimidazole and TPA-benzothiazole have been designed and synthesized. The TPA-benzimidazole chemosensor was tested for a number of metal ions and found to exhibit binding affinity for Fe3+ and Hg2+ in acetonitrile, and the fluorescence quenching was achieved through a PET process. The appearance of an isosbestic point in absorption titrations and Job's plot analysis supported 1:1 stoichiometries for Fe3+ and Hg2+ ions. Laser experiments showed that under transversal pumping with a Q-switched Nd:YAG (355 nm) laser in toluene, TPA-benzothiazole exhibits efficient and stable amplified spontaneous emissions (ASE) at 436 nm. (C) 2013 Elsevier B.V. All rights reserved.
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