title: Multi-signalling cation sensing behaviour of a bis(pyridin-2-yl methyl)aniline based hetarylazo dye.
abstract: We investigated the cation sensing behaviour of a bis(pyridin-2-yl methyl)aniline appended hetarylazo dye via chromogenic and electrochemical transduction channels. The binding pocket constituting both the pyridyl as well as aniline nitrogen atoms acts as recognition site for the cations and consequent perturbation in the intramolecular charge-transfer prevailing in the dye results in the chromogenic response manifested in the form of hypsochromic shift in the intramolecular charge-transfer band and the attendant naked-eye color changes. The dye exhibits significant changes in its electrochemical behaviour in the presence of cations. The experimental results are also rationalized by time-dependent density functional theory (TD-DFT) calculations.
authors: Department of Chemistry, UGC-Centre of Advance Studies-I, UGC SAP (DRS-I) Department, Guru Nanak Dev University, Amritsar, India. paramjit19in@yahoo.co.in
authors: Paramjit
authors: P
authors: Kaur
authors: Divya
authors: D
authors: Sareen
authors: Mandeep
authors: M
authors: Kaur
authors: Kamaljit
authors: K
authors: Singh