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首页> 外文期刊>Bulletin of the Chemical Society of Japan >Photoluminescence Properties of Eu(III) Complexes with Thienyl-Substituted Diphosphine Dioxide Ligands
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Photoluminescence Properties of Eu(III) Complexes with Thienyl-Substituted Diphosphine Dioxide Ligands

机译：Eu（III）复合物用噻吩基取代二膦二氧化体配体的光致发光性能

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摘要

Two Eu(III) complexes with thienyl-substituted diphosphine dioxide ligands were prepared and their photoluminescence properties were investigated. Quantum yields of Eu(III)( fod)(3)(DTDOPO) (1) (fod = tris(6,6,7,7,8,8,8-heptafluoro-2,2-dimethyl-3,5-octanedionato) and DTDOPO = dithienyl[3-(dioctylphosphinyl) propyl] phosphine oxide) and Eu(III)(fod)(3)(DTDBPO) (2) (DTDBPO = dithienyl[5-(dibutylphosphinyl)-pentyl] phosphine oxide) in the solid state were remarkably high (Phi(TOT) ((solid)) = 0.60 and 0.68, respectively) compared with that of Eu(III)(fod)(3)(DPDO) (3) (DPDO = diphenyl[3-(dioctylphosphinyl) propyl] phosphine oxide) (Phi(TOT) ((solid)) = 0.47). Given that Eu(III)(fod)(3)(DTDOPO) (1) and Eu(III)(fod)(3)(DPDO) (3) have the same molecular structure except for their aromatic substituents, substitution of thienyl groups for phenyl groups is effective for increasing the quantum yield of Eu(III) complexes in the solid state. Another noteworthy result regarding the photoluminescence properties of complexes 1 and 2 with thienyl groups is that quantum yields have strong positive linear correlations with concentration in ethyl acetate, and those in the solid state are located on the extended line. This means that no concentration quenching is observed.
机译：制备两个欧盟（III）配合物与取代的二膦二氧化物配体，并研究了它们的光致发光性能。欧盟（III）（FOD）（3）（DTDOPO）（1）（FOD = Tris（6,6,6,7,7,8,8,8-庚二氟-2,2-二甲基-3,5-辛烷化硅酸盐）和DTDOPO =二苯基[3-（二辛基膦酰基）丙基]氧化膦）和EU（III）（FOD）（3）（DTDBPO）（2）（DTDBPO =二噻吩基[5-（二丁基膦基） - 戊基]氧化膦）与Eu（III）（FOD）（3）（DPDO）（3）（DPDO =二苯基）（DPDO =二苯基）（DPDO =二苯基）（DPDO =二苯基[3 - （二辛基膦基）丙基氧化膦）（PHI（Tot）（（固体））= 0.47）。鉴于Eu（III）（FOD）（3）（3）（DTDOPO）（1）和EU（III）（FOD）（3）（DPDO）（3）具有相同的分子结构，除了它们的芳族取代基，噻吩基取代对于苯基来说有效地增加固态中EU（III）络合物的量子产率。关于复合物1和2与噻吩基的光致发光性质的另一种值得注意的结果是量子产率与乙酸乙酯中的浓度具有强烈的正线性相关性，并且固态的浓度具有浓度的阳性线性相关性，并且固态的浓度位于延伸线上。这意味着没有观察到浓度猝灭。

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