Issue 34, 2015

β-Substituted triarylborane appended porphyrins: photophysical properties and anion sensing

Abstract

β-Substituted triarylborane porphyrins were designed and synthesized by the Pd-catalyzed Sonogashira cross-coupling reaction. The incorporation of triarylborane unit results in a red shifted absorbance and fluorescence. The sensing ability of these porphyrins was studied for different anions. The triarylborane porphyrin 4 and 5 selectively detects fluoride ions as shown by the UV/vis absorption and fluorescence titration experiments. The binding constants for triarylborane porphyrin 4 and 5 in dichloromethane at 25 °C were found to be 1.0 × 106 M−1 and 5.0 × 105 M−1 respectively.

Graphical abstract: β-Substituted triarylborane appended porphyrins: photophysical properties and anion sensing

Supplementary files

Article information

Article type
Paper
Submitted
05 Mar 2015
Accepted
10 Mar 2015
First published
10 Mar 2015

RSC Adv., 2015,5, 27069-27074

Author version available

β-Substituted triarylborane appended porphyrins: photophysical properties and anion sensing

R. Sharma, P. Gautam, R. Misra and S. K. Shukla, RSC Adv., 2015, 5, 27069 DOI: 10.1039/C5RA03931B

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