Using the antenna effect as a spectroscopic tool: photophysics and solution thermodynamics of the model luminescent hydroxypyridonate complex [Eu(III)(3,4,3-LI(1,2-HOPO))]-.
Using the antenna effect as a spectroscopic tool: photophysics and solution thermodynamics of the model luminescent hydroxypyridonate complex [Eu(III)(3,4,3-LI(1,2-HOPO))]-.
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DOI：
10.1021/ic9013703
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发表时间：
2009-12-07
影响因子：
4.6
通讯作者：
Raymond, Kenneth N.
中科院分区：
文献类型：
--
作者：
Abergel, Rebecca J.;D'Aleo, Anthony;Leung, Clara Ng Pak;Shuh, David K.;Raymond, Kenneth N.
虽然在生物测定中广泛使用，但这里描述的荧光光谱法使用天线效应作为工具来探测使镧系发光敏化的配体的热力学参数。报道了精胺基羟基脲醛十八齿酸螯合剂3,4,3- li （1,2- hopo）的Eu3+配位化学、溶液热力学稳定性和光物理性质。该配合物[EuIII(3,4,3- li (1,2- hopo)))]-在pH为7.4的水溶液中具有长寿命（805 μs）和量子产率7.0%的发光特性。利用这些显著的光学性质来确定配合物的高（和不依赖质子的）稳定性（log β110 = 20.2(2)），并确定配体支架对稳定性和光物理性质的影响。
While widely used in bioassays, the spectrofluorimetric method described here uses the antenna effect as a tool to probe the thermodynamic parameters of ligands that sensitize lanthanide luminescence. The Eu3+ coordination chemistry, solution thermodynamic stability and photophysical properties of the spermine-based hydroxypyridonate octadentate chelator 3,4,3-LI(1,2-HOPO) are reported. The complex [EuIII(3,4,3-LI(1,2-HOPO))]- luminesces with a long lifetime (805 μs) and a quantum yield of 7.0% in aqueous solution, at pH 7.4. These remarkable optical properties were exploited to determine the high (and proton-independent) stability of the complex (log β110 = 20.2(2)) and to define the influence of the ligand scaffold on the stability and photophysical properties.
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影响因子：
3.3
作者：
Werts, MHV;Jukes, RTF;Verhoeven, JW
通讯作者：
Verhoeven, JW
影响因子：
4.6
作者：
D'Aleo, Anthony;Xu, Jide;Raymond, Kenneth N.
通讯作者：
Raymond, Kenneth N.
影响因子：
4.6
作者：
Kumar, K;Tweedle, MF;Gougoutas, JZ
通讯作者：
Gougoutas, JZ
影响因子：
18.3
作者：
Moore, Evan G.;Samuel, Amanda P. S.;Raymond, Kenneth N.
通讯作者：
Raymond, Kenneth N.
影响因子：
4.6
作者：
SCARROW, RC;RILEY, PE;RAYMOND, KN
通讯作者：
RAYMOND, KN