Positional Variation of Monopyridyl-N in Unsymmetrical Anthracenyl π-Conjugates: Difference between Solution- and Aggregate-State Emission Behavior.

ABSTRACT: Fluorescence enhancement on aggregation for π-conjugates linked with pyridyl ring has been established as a part of widely studied smart organic functional materials. Therefore, the photophysical features in the solution and aggregate states for such compounds remain impressive. In this work, we synthesized three series of photostable unsymmetrical aryl-substituted anthracenyl π-conjugates linked to pyridyl ring with a variation of the position of a pyridyl-N atom and examined the difference in the photophysical properties preferably in the aggregate state. The so-called "aggregation-induced emission (AIE)" behavior was discernible for the 2- and 4-pyridyl- but not 3-pyridyl-10-p-tolyl or mesityl-substituted π-conjugates. Curiously, a variation of the position of a pyridyl-N atom do

SUBMITTER: Baig MZK 

PROVIDER: S-EPMC6649281 | biostudies-literature | 2019 Mar

REPOSITORIES: biostudies-literature