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Quantitative fluorescent detection of pyrophosphate with quinoline-ligated dinuclear zinc complexes
Yuji Mikata1, Anna Ugai, Risa Ohnishi
1KYOUSEI Science Center for Life and Nature and ‡Department of Chemistry, Faculty of Science, Nara Women's University , Nara, Nara 630-8506, Japan.
Abstract:
Dinuclear zinc complex [Zn2(TQHPN)(AcO)](2+) exhibits characteristic fluorescence response (λex = 317 nm and λem = 455 nm) toward pyrophosphate (PPi) with maximum fluorescence upon 1:1 Zn2(TQHPN)-PPi complex formation. The crystallographic investigation utilizing P(1)P(2)-Ph2PPi revealed that the fluorescent response mechanism is due to intramolecular excimer formation of two quinoline rings.
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