Highly selective Schiff base derivatives for colorimetric detection of Al3+

Aydin Z. , KELEŞ M.

TURKISH JOURNAL OF CHEMISTRY, cilt.41, sa.1, ss.89-98, 2017 (SCI İndekslerine Giren Dergi) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 41 Konu: 1
  • Basım Tarihi: 2017
  • Doi Numarası: 10.3906/kim-1603-127
  • Sayfa Sayıları: ss.89-98


Schiff base derivatives NBAR and NSAR were developed for selective detection of Al3+ in aqueous solution. UV-vis spectroscopic studies revealed that NBAR and NSAR showed marked sensitivity and selectivity to Al3+ in acetonitrile (ACN)/water (v/v, 1:1, pH 6.80). The NBAR and NSAR receptors bound Al3+ in a 2:1 stoichiometry with apparent binding constants 4.09 x 10(11) M-2 and 1.65 x 10(12) M-2, respectively. They also displayed distinct changes in color upon the alteration of free Al3+ levels in solution with reversible responses and showed little interference with other metal ions.