Bright V-Shaped bis-Imidazo[1,2-a]pyridine Fluorophores with Near-UV to Deep-Blue Emission.

ABSTRACT: Ten novel small-molecule fluorophores containing two electron-accepting imidazo[1,2-a]pyridine (ImPy) units are presented. Each ImPy core is functionalized at its C6 position with groups featuring either electron accepting (A) or donating (D) properties, thus providing emitters with general structure X-ImPy-Y-ImPy-X (X=either A or D; Y=phenyl or pyridine). The molecules bear either a phenyl (series 4) or a pyridine (series 5) π bridge that connects the two ImPys via meta (phenyl) or 2,6- (pyridine) positions, yielding an overall V-shaped architecture. The final compounds are synthetized straightforwardly by condensation between substituted 2-aminopyridines and α-halocarbonyl derivatives. All the compounds display intense photoluminescence with quantum yield (PLQY) in the range of 0.17-0.51

SUBMITTER: Jouaiti E 

PROVIDER: S-EPMC10091824 | biostudies-literature | 2022 Dec

REPOSITORIES: biostudies-literature