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Anthraquinone; chemosensors; molecular logic gates; demultiplexer.

Anthraquinone-based chemosensor L with pyridine units as additional functional groups has been found to show pH-dependent multiple coordinationmodes towards differentmetal ions (Co²⁺, Ni²⁺ and Cu²⁺). Based on these different absorption changes, this differential colorimetric chemosensor L has found promising applications as a multiple-mode molecular logic system, i.e., OR, three - input NOR, three - input INHIBIT, TRANSFER and 1:2 DEMUX.

Navneet Kaur¹ Subodh Kumar²

1. Department of Chemistry, Panjab University, Chandigarh 160 014, India
2. Department of Chemistry, Guru Nanak Dev University, Amritsar 143 005, India

Manuscript received

17 June 2013

Manuscript revised

2 September 2013

Accepted

22 October 2013