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Issue 9, 2010
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Reversible colorimetric switching of thiophene hydrazone based on complementary IMP/INH logic functions

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Abstract

We have synthesized a thiophene hydrazone (receptor 1) that acts as a colorimetric receptor showing a reversible color switching (ON and OFF) function induced by anion and cation recognition. This remarkable color switching is based on two-input complementary IMP/INH logic functions. The (ON and OFF) process of this molecular switch is triggered by an anion (CH3COO, C6H5COO, HCOO, H2PO4 or F), while it is quenched by any one MII ion of 3d (d5–d10) as well as CdII and HgII. A DMSO solution of receptor 1 underwent a bathochromic shift from 407 to 505 nm upon adding any one of the above-mentioned anions, while switch OFF was achieved by the addition of any one of the above-mentioned cations to regenerate a band at 407 nm.

Graphical abstract: Reversible colorimetric switching of thiophene hydrazone based on complementary IMP/INH logic functions

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Publication details

The article was received on 05 Feb 2010, accepted on 23 Apr 2010 and first published on 29 May 2010


Article type: Paper
DOI: 10.1039/C0NJ00097C
Citation: New J. Chem., 2010,34, 1862-1866
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    Reversible colorimetric switching of thiophene hydrazone based on complementary IMP/INH logic functions

    K. K. Upadhyay, A. Kumar, R. K. Mishra, T. M. Fyles, S. Upadhyay and K. Thapliyal, New J. Chem., 2010, 34, 1862
    DOI: 10.1039/C0NJ00097C

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