A pair of coordination donor–acceptor ensembles for the detection of tartrate in aqueous media

Chi-Kin KOO, Cheuk Fai CHOW, Brenda Ka‐Wen CHIU, Ngai-Yu LEI, Michael Hon‐Wah LAM, Wai‐Yeung WONG

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Abstract

A chemosensing approach utilizing a pair of heterodimetallic chemodosimetric ensembles of different analyte selectivity for the specific detection of targeted analytes in aqueousmedia was developed. Two new trinuclear, heterodimetallic donor–acceptor complexes, {Ru(tBubpy)(CN)₄[Cu(cyclen)]₂}(ClO₄)₂([Ru‐Cu]) and {Ru(tBubpy)(CN)₄[Ni(cyclen)]₂}(ClO₄)₂([Ru‐Ni]), where tBubpy = 4,4’‐di‐tert‐butyl‐2,2’‐bipyridine and cyclen = 1,4,7,10‐tetraazacyclododecane, have been synthesized and characterized. Their formation constants from K₂[Ru(tBubpy)(CN)₄] and [Cu(cyclen)](ClO₄)₂ and [Ni(cyclen)](ClO₄)₂ were measured to be 5.54 × 10⁶ ([Ru‐Cu]) and 1.24 × 10⁷ M⁻² ([Ru‐Ni]), respectively, at 298 K. Luminescent chemodosimetric responses of these two ensembles towards various anionic analytes in neat aqueous buffer at pH 7.0 were evaluated. While each of these two ensembles showed relatively low analyte specificity, they can be used together to manifest a chemosensing XOR logic output for the specific detection of tartrate. Copyright © 2008 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.
Original languageEnglish
Pages (from-to)1318-1325
JournalEuropean Journal of Inorganic Chemistry
Volume2008
Issue number8
DOIs
Publication statusPublished - Mar 2008

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Buffers
cyclen
tartaric acid

Citation

Koo C.-K., Chow C.-F., Chiu B .K.-W., Lei, N.-Y., Lam M. H.-W., & Wong W.-Y. (2008). A pair of coordination donor–acceptor ensembles for the detection of tartrate in aqueous media. European Journal of Inorganic Chemistry, 2008(8), 1318-1325. doi: 10.1002/ejic.200700931

Keywords

  • Chemosensing ensemble
  • Chemodosimetry
  • Donor–acceptor complexes
  • Tartrate
  • XOR logic