Amphiphilic triphenylamine-benzothiadiazole dyes: preparation, fluorescence and aggregation behavior, and enzyme fluorescence detection

Abstract

Change of aggregate stabilization based on removal of the galactopyranose moiety leads to an emission enhancement to detect β-galactosidase activity.

Tuning of the Coordination and Emission Properties of 4-Amino-2,1,3-Benzothiadiazole by Introduction of Diphenylphosphine Group

“…14,15 Due to the special interest in the btd derivatives, their organic chemistry has been intensively studied. Numerous examples include 4,7-aryl-, 16,17 thiophene-, 18 and fused bis-benzothiadiazole 19 derivatives, pyridines, 20 pyridazines, 21 carbazoles, 22,23 and fluorinated compounds, 24 as well as their methoxy-and dimethylamine derivatives. 25 Meanwhile, the chemistry of phosphazanes and their complexes is actively being studied; 26 they are promising compounds for the preparation of modern functional materials.…”

“…There is an unceasing interest in the investigation of Ox-Red and photophysical properties of 2,1,3-benzothiadiazoles (btd), bound with their specific intra/intermolecular interactions, electronic structure, and charge transfer processes. − Being good chromophores and fluorophores, btd derivatives are promising for several applications, such as the construction of organic light-emitting diodes, , fluorescent markers for mapping in living systems, − low band gap polymers for photovoltaics, , and photocatalysts and luminescent ligands for metal complexes. , Due to the special interest in the btd derivatives, their organic chemistry has been intensively studied. Numerous examples include 4,7-aryl-, , thiophene-, and fused bis-benzothiadiazole derivatives, pyridines, pyridazines, carbazoles, , and fluorinated compounds, as well as their methoxy- and dimethylamine derivatives …”