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首页> 外文期刊>Chemistry: A European journal >Lanthanide Metal–Organic Frameworks Showing Luminescence in the Visible and Near-Infrared Regions with Potential for Acetone Sensing
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Lanthanide Metal–Organic Frameworks Showing Luminescence in the Visible and Near-Infrared Regions with Potential for Acetone Sensing

机译：镧系金属有机骨架在可见光和近红外区域显示发光，并具有丙酮传感的潜力

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摘要

The luminescent properties of a family of lanthanide metal–organic frameworks LnL (Ln=Y, La–Yb, except Pm; L=4,4’-({2-[(4-carboxyphenoxy) methyl]-2-methylpropane-1,3- diyl}bis{oxy})dibenzoic acid) have been explored, and the energy-transfer process in the compounds has been carefully analyzed. The visible-emitting Tb_(0.08)Gd_(0.92)L and the near-infrared (NIR)-luminescent Yb_(0.10)Gd_(0.90)L show excellent optical performances and can be considered as fluorescent probes for acetone sensing based on luminescence quenching effects arising from host– guest interactions. Moreover, GdL exhibits a strong second harmonic generation (SHG) signal 6.1 times that of potassium dihydrogen phosphate (KDP) and an outstanding phase-matchable effect. These lanthanide compounds combining fluorescent and nonlinear optical (NLO) properties could meet further requirements as multifunctional materials.
机译：镧系金属有机骨架LnL（Ln = Y，La–Yb，Pm除外; L = 4,4'-（{2-[（（4-羧苯氧基）甲基] -2-甲基丙烷-1 （3-二基}双{氧基}）二苯甲酸），并仔细分析了化合物中的能量转移过程。可见光发射的Tb_（0.08）Gd_（0.92）L和近红外（NIR）发光的Yb_（0.10）Gd_（0.90）L显示出出色的光学性能，可以被认为是基于荧光猝灭的丙酮传感荧光探针主持人与来宾的互动产生的影响。此外，GdL表现出强大的二次谐波（SHG）信号，是磷酸二氢钾（KDP）的6.1倍，并且具有出色的相位匹配效果。这些具有荧光和非线性光学（NLO）特性的镧系元素化合物可以满足作为多功能材料的进一步要求。

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