Molecular assembly and photophysical properties of quaternary molecular hybrid materials with chemical bond
Molecular assembly and photophysical properties of quaternary molecular hybrid materials with chemical bond
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化学键四元分子杂化材料的分子组装及光物理性质
DOI：
10.1111/j.1751-1097.2007.00190.x
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发表时间：
2007-11-01
影响因子：
3.3
通讯作者：
Lu, H. F.
中科院分区：
文献类型：
--
作者：
Yan, Bing;Qian, Kai;Lu, H. F.
本文合成了两种长链脂肪族羧酸（油酸[奥拉]和硬脂酸[STA]）用交联分子改性（N-2-氨乙基-3-氨丙基-甲基二甲基硅烷，（AEAPMMS，H-2 N（CH 2）（2）HN（CH 2）（3）SiCH 3（OCH 3）（2）和3-氨丙基-甲基-二乙基硅烷（APMES，H-2 N（CH 2）（3）SiCH 3（OC 2 H5）（2））产生了四种新型结构分子桥奥拉（STA）-AEAPMMS（APMES）。随后，研究了镧系元素的四分子桥奥拉（STA）-AEAPMMS（APMES）和2，2-联吡啶（bipy）三元分子配合物体系（铽和铕）或锌离子组装，合成了四种新型的四元分子杂化材料（命名为bipy-Ln（Zn）-奥拉（STA）-AEAPMMS（APMES）），其具有强的化学键（N-Ln（Zn）-O配位键和Si-O共价键（共水解和共缩聚）过程的改性分子桥（作为结构配体）与无机前体（四乙氧基硅烷，TEOS）。特别是bipy作为功能配体，通过有效的分子内能量转移过程敏化铽或铕离子的发光，从而产生金属离子的特征发射。从结构和功能配体的设计和组装可以帮助实现分子杂交的候选技术。
In this paper, two long chain aliphatic carboxylic acids (oleic acid [OLA] and stearic acid [STA]) are modified with cross-linking molecules (N-2-aminoethyl-3-aminopropyl-methyldimethoxylsiliane, (AEAPMMS, H-2 N(CH2)(2)HN(CH2)(3) SiCH3(OCH3)(2) and 3-aminopropyl-methyl-diethoxylsiliane (APMES, H-2 N(CH2)(3)SiCH3(OC2H5)(2)) resulting in four new kinds of structural molecular bridge OLA (STA)-AEAPMMS (APMES). Subsequently, ternary molecular complex systems with four molecular bridges OLA (STA)-AEAPMMS (APMES) and 2,2-bipyridyl (bipy) of lanthanides (terbium and europium) or zinc ions were assembled, which resulted in four novel kinds of quaternary molecular hybrid materials (named as bipy-Ln (Zn)-OLA (STA)-AEAPMMS (APMES) with strong chemical bonds (N-Ln(Zn)-O coordination bonds and Si-O covalent bonds) after a sol-gel (cohydrolysis and copolycondensation) process of the modified molecular bridges (as structural ligand) with inorganic precursor (tetraethoxysilane, TEOS). And especially bipy behaves as functional ligand to sensitize the luminescence of terbium or europium ions through the effective intramolecular energy transfer process, which gives rise to the characteristic emission of metal ions. The design and assembly from structural and functional ligands can help achieve a candidate technology for molecular hybrids.