Luminescent Lanthanide (Eu3+, Tb3+) Hybrids with 4‐Vinylbenzeneboronic Acid Functionalized Si‐O Bridges and Beta‐Diketones
Luminescent Lanthanide (Eu3+, Tb3+) Hybrids with 4‐Vinylbenzeneboronic Acid Functionalized Si‐O Bridges and Beta‐Diketones
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DOI：
10.1111/j.1751-1097.2011.00928.x
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发表时间：
2011-07
影响因子：
3.3
通讯作者：
B. Yan;Min Guo;Xiaofei Qiao
中科院分区：
文献类型：
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作者：
B. Yan;Min Guo;Xiaofei Qiao
以4-乙烯基苯基硼酸（VPBA）为配体，用两种交联剂（3-（三乙氧基硅基）-丙基异氰酸酯[特匹克]和3-（三甲氧基硅基）丙基甲基丙烯酸酯[TMPMA]）进行功能化，得到两种特殊的分子桥特匹克和VPBA-TMPMA。同时，作为第二配体的β-二酮配体（2-噻吩甲酰基三氟丙酮[TTA]、乙酰丙酮[ACAC]）发挥主要能量供体的作用，吸收紫外可见范围内丰富的能量，然后将能量转移到相应的镧系离子（Eu 3+、Tb 3+）上，使其发射增敏。构建了8个Eu 3+，Tb 3+与VPBA‐特匹克（VPBA‐TMPMA）和TTA（ACAC）的二元和三元杂化材料，并对其光致发光特性进行了深入研究，结果表明，三元杂化材料具有较长的发光寿命和较高的量子效率。
4‐Vinylphenylboronic acid ligand (VPBA) is functionalized with two crosslinking reagents (3‐(triethoxysilyl)‐propylisocyanate [TEPIC] and 3‐(trimethoxysilyl) propyl methacrylate [TMPMA]) to achieve the two special molecular bridge VPBA‐TEPIC and VPBA‐TMPMA. Meanwhile, beta‐diketone ligands (2‐thenoyltrifluoroacetone [TTA], acetyl acetone [ACAC]) as the second ligands play the role of the main energy donor, which absorb abundant energy in ultraviolet–visible extent and then transfer the energy to the corresponding lanthanide ions (Eu3+, Tb3+) to sensitize their emission of them. Eight binary and ternary Eu3+, Tb3+ hybrids with VPBA‐TEPIC (VPBA‐TMPMA) and TTA (ACAC) have been constructed, whose photoluminescence properties are studied in depth and suggest that the ternary hybrids show the favorable characteristic luminescent properties (longer lifetime and higher quantum efficiency).