Highly selective colorimetric sensing pyrophosphate in water by a NBD-phenoxo-bridged dinuclear Zn(II) complex

A novel NBD-phenoxo-bridged dinuclear Zn(II) complex is found to be an effective colorimetric sensor for pyrophosphate (PPi) in pure aqueous solution over a wide pH range. This sensor shows high binding affinity (K(a)≈ 3 × 10(8) M(-1)) and high selectivity for PPi, and can be also used to assay the...

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Veröffentlicht in:	Organic & biomolecular chemistry 2012-08, Vol.10 (29), p.5606-5612
Hauptverfasser:	Yang, Shengjun, Feng, Guoqiang, Williams, Nicholas H
Format:	Artikel
Sprache:	eng
Schlagworte:	Colorimetry - methods Coordination Complexes - chemistry Crystallography, X-Ray Diphosphates - chemistry Hydrogen-Ion Concentration Kinetics Pyrophosphatases - chemistry Water - chemistry Zinc - chemistry
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Beschreibung
Zusammenfassung:	A novel NBD-phenoxo-bridged dinuclear Zn(II) complex is found to be an effective colorimetric sensor for pyrophosphate (PPi) in pure aqueous solution over a wide pH range. This sensor shows high binding affinity (K(a)≈ 3 × 10(8) M(-1)) and high selectivity for PPi, and can be also used to assay the activity of pyrophosphatase in real time.
ISSN:	1477-0520 1477-0539
DOI:	10.1039/c2ob25617g