Abstract:
A series of three anthracene anchored dipodal chromogenic
sensors appended with hydroxyl groups with different arrangements
with respect to each other i. e., ortho (1), meta (2) and
para (3) have been synthesized and evaluated as F and CN
ion sensors. These sensors show variation in their selectivity
response i. e. (1) equally responds to F and CN ions, (2)
mainly responds to F ion with slight interference from CN
while (3) totally discriminates between the two, being highly
selective to F ions only. This selectivity has been attributed to
the acid-base phenomenon which affects reactivity, sensitivity
and selectivity of the sensors.
