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 activity of pyrophosphatase in real time.
Key Laboratory of Pesticide and Chemical Biology of Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan 430079, PR China.
Shengjun
S
Yang
Guoqiang
G
Feng
Nicholas H
NH
Williams
D003124:Colorimetry / Q000379:methods*; D056831:Coordination Complexes / Q000737:chemistry*; D018360:Crystallography, X-Ray; D011756:Diphosphates / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration; D007700:Kinetics; D011755:Pyrophosphatases / Q000737:chemistry; D014867:Water / Q000737:chemistry; D015032:Zinc / Q000737:chemistry*
D056831:Coordination Complexes; D011756:Diphosphates; D014867:Water; C107241:diphosphoric acid; D011755:Pyrophosphatases; D015032:Zinc