Quantitative Fluorescent Detection of Pyrophosphate with Quinoline-Ligated Dinuclear Zinc Complexes
摘要:
Dinuclear zinc complex [Zn-2(TQHPN)-(AcO)](2+) exhibits characteristic fluorescence response (lambda(ex) = 317 nm and lambda(em) = 455 nm) toward pyrophosphate (PPi) with maximum fluorescence upon 1:1 Zn-2(TQHPN)-PPi complex formation. The crystallographic investigation utilizing (PP2)-P-1-Ph(2)PPi revealed that the fluorescent response mechanism is due to intramolecular excimer formation of two quinoline rings.
Quantitative Fluorescent Detection of Pyrophosphate with Quinoline-Ligated Dinuclear Zinc Complexes
作者:Yuji Mikata、Anna Ugai、Risa Ohnishi、Hideo Konno
DOI:10.1021/ic401605m
日期:2013.9.16
Dinuclear zinc complex [Zn-2(TQHPN)-(AcO)](2+) exhibits characteristic fluorescence response (lambda(ex) = 317 nm and lambda(em) = 455 nm) toward pyrophosphate (PPi) with maximum fluorescence upon 1:1 Zn-2(TQHPN)-PPi complex formation. The crystallographic investigation utilizing (PP2)-P-1-Ph(2)PPi revealed that the fluorescent response mechanism is due to intramolecular excimer formation of two quinoline rings.
OFF–ON–OFF fluorescent response of N,N,N′,N′-tetrakis(1-isoquinolylmethyl)-2-hydroxy-1,3-propanediamine (1-isoHTQHPN) toward Zn<sup>2+</sup>
作者:Yuji Mikata、Risa Ohnishi、Anna Ugai、Hideo Konno、Yasushi Nakata、Ikuko Hamagami、Shin-ichiro Sato
DOI:10.1039/c6dt00506c
日期:——
An isoquinoline-based ligand, N,N,N′,N′-tetrakis(1-isoquinolylmethyl)-2-hydroxy-1,3-propanediamine (1-isoHTQHPN), exhibits a fluorescence increase at 475 nm upon addition of 1 equiv. of Zn2+ (IZn/I0 = 12, ϕZn = 0.023). This fluorescence enhancement turns and then decreases sharply after the addition of more than 1 equiv. of Zn2+ reaching a constant minimum intensity with more than 2 equiv. of Zn2+