Terbium luminescence in Langmuir-Blodgett films of octafunctionalized calix[4] resorcinarenes
Terbium luminescence in Langmuir-Blodgett films of octafunctionalized calix[4] resorcinarenes
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DOI：
10.1021/la980678g
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发表时间：
1999-01-19
期刊：
影响因子：
3.9
通讯作者：
Conte, L
中科院分区：
文献类型：
--
作者：
Dutton, PJ;Conte, L
用α-乙酸酯或α-(二乙基乙酰胺)[(n-C11H23)(4)-C[4]R-(OCH2COX)(8)；1，X=OMe；2，X=NEt2]修饰的杯[4]间苯二酚[1，X=OMe；2，X=NEt2]已被证明在Langmuir-Blodgett薄膜中掺杂了Tb(III)离子。研究了石英表面单分子膜的能量转移发光。激发波长为280 nm，对应于配体芳香环的生色团。在489、545.5、586和620 nm处观察到发射，对应于Tb的已知跃迁(分别为D-5(4)-->；F-7(6)、D-5(4)-gt；F-7(5)、D-5(4)-->；F-7(4)和D-5(4)-->；F-7(3))。结果表明，在2×10~(-4)M的TbCl3水溶液中形成了1的多层LB膜和2个易提取的Tb(III)的单层膜，并表现出能量转移发光。
Calix[4]resorcinarenes functionalized with pendant a acetates or alpha-(diethyl acetamides) [(n-C11H23)(4)-C[4]R-(OCH2COX)(8); 1, X = OMe; 2, X = NEt2] have been shown to incorporate terbium(III) ions into Langmuir-Blodgett films. Energy-transfer luminescence from a single monolayer on quartz has been demonstrated. An excitation wavelength of 280 nm, corresponding to the chromophore of the ligands aromatic rings, was used. Emission was observed at 489, 545.5, 586, and 620 nm, corresponding to the known transitions of terbium (D-5(4) --> F-7(6), D-5(4) --> F-7(5), D-5(4) --> F-7(4), and D-5(4) --> F-7(3), respectively). It was demonstrated that a multilayer LB film of 1 and a monolayer film of 2 readily abstract terbium(III) from 2 x 10(-4) M aqueous solutions of TbCl3 and that energy transfer luminescence was subsequently exhibited.