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Aggregation-Induced Emission and Sensing Characteristics of Triarylborane-Oligothiophene-Dicyanovinyl Triads.
- Source :
- Chemistry - A European Journal; 11/21/2016, Vol. 22 Issue 48, p17215-17225, 11p
- Publication Year :
- 2016
-
Abstract
- The design, synthesis and aggregation-induced emission properties of a new series of triarylborane-oligothiophene-dicyanovinyl (DCV) conjugates 4- 6 (A-D-A' type molecular configuration) are reported. The optical properties of 4- 6 can be modulated by judiciously varying the number of thiophene units between electron deficient boryl and dicyanovinyl units. Compound 6 with terthiophene spacer showed highly red-shifted absorption and emission compared to 5 and 4 with bithiophene and monothiophene spacers, respectively. Compounds 5 and 6 show aggregation-induced emission enhancement in water/THF mixtures. Compounds 5 and 6 also showed solvent viscosity dependent emission characteristics. All the three compounds show distinct optical responses for small anions such as fluoride and cyanide. Filter paper strips coated with compounds 5 and 6 can detect F<superscript>−</superscript> and CN<superscript>−</superscript> in aqueous media with different colorimetric responses. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 09476539
- Volume :
- 22
- Issue :
- 48
- Database :
- Complementary Index
- Journal :
- Chemistry - A European Journal
- Publication Type :
- Academic Journal
- Accession number :
- 119478317
- Full Text :
- https://doi.org/10.1002/chem.201603349