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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Highly luminescent lanthanide complexes sensitised by tertiary amide-linked carbostyril antennae
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Highly luminescent lanthanide complexes sensitised by tertiary amide-linked carbostyril antennae

机译：高温镧系元素致敏的叔酰胺连接的石油霉菌天线

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摘要

Carbostyrils are among the most widely used sensitising antennae for luminescent lanthanides; they afford bright complexes with Eu and Tb, and can also sensitise the emissions of the less commonly used Sm, Dy, Yb and Nd. Systematic studies on the effect of structural variations on the photophysical properties and lanthanide sensitising abilities of carbostyrils can therefore have a large impact. We replaced the secondary amide linker that connects the metal binding site to the antenna with a carboxymethyl-substituted tertiary amide. Eight Tb and Eu complexes were prepared. All had higher lanthanide luminescence quantum yields (phi(Ln)) than their secondary amide analogues; three Tb emitters had phi(Tb) 40%. Eu complexes had phi(Eu) up to 11.6%. The antenna singlet and triplet excited states are slightly shifted, while the metal coordination sphere is unchanged by the introduction of the carboxymethyl group.
机译：石油红霉是发光镧系元素最广泛使用的敏化天线之一; 他们提供欧盟和结核病的明亮复合物，也可以敏感较少使用的SM，DY，YB和ND的排放。 因此，系统研究结构变异对光脓式yrils的光学性质和镧系元素敏化能力的影响可以具有很大的影响。 我们用羧甲基取代的叔酰胺取代了将金属结合位点连接到天线的仲酰胺连接物。 制备八个TB和EU复合物。 均具有较高的镧系元素发光量子产率（PHI（LN））比其仲酰胺类似物; 三个结核发射器有PHI（TB）＆ 40％。 欧盟复合物的PHI（EU）高达11.6％。 天线态单曲和三重态激发态略微移位，而金属配位球体通过引入羧甲基而不变。

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