Abstract
A new type of blue emitter, N2-Indolyl-1,2,3-triazoles (NITs), with the λmax ranging from 420–480 nm and the Stokes shift from 89–143 nm, were synthesized through the coupling reaction of indoles with triazole derivatives. The influence of different substitution patterns on the optical properties (efficiency, excitation, and emission wavelengths) of the NITs was investigated. In addition, one palladium complex were synthesized by using NITs as the ligands, which, however, exhibited no fluorescent activity, but did show the enhanced co-planarity. Lastly, two bio-active molecule derivatives were explored for the potential use of these novel dyes in related chemical and biological applications.
Highlights
Photoactive molecules have been the object of many studies in chemistry, biology, and material research [1,2,3,4,5]
The corresponding blue-emissive fluorophores, which exhibit blue fluorescence in high quantum efficiency coupled with high stability, are more difficult to obtain [24,25,26,27,28], due to the large energy gaps that exist between the blue emitter’s highest occupied molecular orbitals (HOMOs) and its lowest unoccupied molecular orbitals (LUMOs) [29,30]
This optical activity and photostability dilemma is a great challenge for the development of efficient, stable blue-light-emitting small molecular fluorophores
Summary
Photoactive molecules have been the object of many studies in chemistry, biology, and material research [1,2,3,4,5]. The corresponding blue-emissive fluorophores, which exhibit blue fluorescence in high quantum efficiency coupled with high stability, are more difficult to obtain [24,25,26,27,28], due to the large energy gaps that exist between the blue emitter’s highest occupied molecular orbitals (HOMOs) and its lowest unoccupied molecular orbitals (LUMOs) [29,30]. This optical activity and photostability dilemma is a great challenge for the development of efficient, stable blue-light-emitting small molecular fluorophores.
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