Abstract
We report here synthesis, characterization and Al3+ ion sensing properties of a 4-methyl-2,6-diformylphenol (DFP) based compound, 4-methyl-2,6-bis-(pyrimidin-2-ylimino)methyl)phenol (HMPM). It has been synthesized by condensation reaction between one eqv. of DFP and two eqv. of 2-aminopyrimidine in acetonitrile under mild conditions. Fluorescence intensity of HMPM increases by 12-fold in the presence of one eqv. of Al3+ in 10 mM HEPES buffer in water:DMSO (1:9, v/v) (pH 7.4). Other cations do not induce any appreciable increment in its fluorescence intensity. Its quantum yield and fluorescence life time enhance upon addition of Al3+. HMPM forms 1:1 complex with the cation. Detection limit has been determined as 1.27 μM. Bare eye detection of Al3+ is possible with the help of HMPM. The probe has been used to detect Al3+ in ‘real sample’.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
