Pyrene-based chemosens or detects picric acid upto attogram level through aggregation enhanced excimer emission.
A pyrene-based small molecular weight probe, exhibiting aggregation enhanced excimer emission has been synthesized. The crystalline emissive form detects 2,4,6-trinitrophenol (picric acid) at parts-per-billion concentration in solution and as low as 0.46 attogram in direct contact mode, operating predominantly in a static quenching mechanism, proposed on the basis of steady state and life-time fluorescence measurements.
Department of Chemistry, UGC-Centre for Advanced Studies-I, Guru Nanak Dev University, Amritsar 143005, India.
Rakesh
R
Chopra
Department of Chemistry, UGC-Centre for Advanced Studies-I, Guru Nanak Dev University, Amritsar 143005, India. Electronic address: paramjit19in@yahoo.co.in.
Paramjit
P
Kaur
Department of Chemistry, UGC-Centre for Advanced Studies-I, Guru Nanak Dev University, Amritsar 143005, India. Electronic address: kamaljit.chem@gndu.ac.in.
Kamaljit
K
Singh
D005456:Fluorescent Dyes / Q000138:chemical synthesis / Q000737:chemistry*; D010851:Picrates / Q000032:analysis* / Q000737:chemistry*; D011721:Pyrenes / Q000138:chemical synthesis / Q000737:chemistry*; D012984:Software; D013050:Spectrometry, Fluorescence
D005456:Fluorescent Dyes; D010851:Picrates; D011721:Pyrenes; C030984:pyrene; C005858:picric acid
Aggregation enhanced excimer emission; Attogram; Crystalline nanoaggregates; Picric acid; Soil samples