1020069-32-2Relevant articles and documents
p-Nitrophenyl triazenyl purine: First adenine-based colorimetric anion sensor
Upadhyay,Kumar, Ajit,Upadhyay, Shalini,Mishra, Rakesh K.,Roychoudhuary
, p. 186 - 187 (2008)
6-[(2E)-3-(4-Nitrophenyl)triaz-2-en-1 -yl]-9H-purine (p-nitrophenyl triazenyl purine, PNTP) has been synthesized and evaluated for sensing the anions PF6-, HSO4-, ClO 4-, and BF4- as their tetrabutylammonium salts in DMSO. This is the first example of any adenine-based anion sensor. The addition of 2 equivalents of PF6- HSO4-, ClO4-, and BF 4- to the 2 × 10-5 mol dm-3 DMSO solution of PNTP at room temperature produced visible color changes and perturbation of UV-vis spectral pattern of PNTP in terms of absorbance at 398 and 575 nm in reciprocal patterns. The sensing ability of PNTP was found to be best for PF6- among all the chosen anions. Copyright