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A Pair of Coordination Donor–Acceptor Ensembles for the Detection of Tartrate in Aqueous Media
Author(s) -
Koo ChiKin,
Chow CheukFai,
Chiu Brenda KaWen,
Lei NgaiYu,
Lam Michael HonWah,
Wong WaiYeung
Publication year - 2008
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.200700931
Subject(s) - cyclen , chemistry , tartrate , analyte , ruthenium , aqueous solution , selectivity , acceptor , luminescence , inorganic chemistry , crystallography , stereochemistry , organic chemistry , catalysis , physics , optoelectronics , condensed matter physics
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( t Bubpy)(CN) 4 [Cu(cyclen)] 2 }(ClO 4 ) 2 ([Ru‐Cu]) and {Ru( t Bubpy)(CN) 4 [Ni(cyclen)] 2 }(ClO 4 ) 2 ([Ru‐Ni]), where t Bubpy = 4,4′‐di‐ tert ‐butyl‐2,2′‐bipyridine and cyclen = 1,4,7,10‐tetraazacyclododecane, have been synthesized and characterized. Their formation constants from K 2 [Ru( t Bubpy)(CN) 4 ] and [Cu(cyclen)](ClO 4 ) 2 and [Ni(cyclen)](ClO 4 ) 2 were measured to be 5.54 × 10 6 ([Ru‐Cu]) and 1.24 × 10 7 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. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008)