School of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou 730050, China.
School of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou 730050, China.
Spectrochim Acta A Mol Biomol Spectrosc. 2020 Aug 15;237:118391. doi: 10.1016/j.saa.2020.118391. Epub 2020 Apr 22.
A novel coumarin-derived acylhydrazone Schiff base fluorescent organogel (G) was designed and synthesized. Gelator G can form stable organogels in isopropanol, tert-amyl alcohol, n-butanol and phenylamine. The organogel could be converted to solution by heating and the solution could be restored to gel state by cooling. The self-assemble mechanism of G1 was investigated by XRD, FT-IR and SEM techniques. The results indicated the intermolecular hydrogen bonding, Van der Waals interaction and π-π stacking are the forces for the self-assembly of the gelator to form the organogel. The optical properties of the compound were studied by UV-visible spectroscopy and fluorescence spectra. Further study presented that gelator G1 could selectively and sensitively response to Fe only among tested cations. Beside the above functions, the organic gel factor G1 could also response to irradiation, heating and shaking, thus endowing the organogel with multi stimulus responsive properties.
设计并合成了一种新型香豆素衍生酰腙席夫碱荧光有机凝胶（G）。凝胶剂 G 可以在异丙醇、叔戊醇、正丁醇和苯胺中形成稳定的有机凝胶。有机凝胶可以通过加热转化为溶液，溶液可以通过冷却恢复为凝胶状态。通过 XRD、FT-IR 和 SEM 技术研究了 G1 的自组装机制。结果表明，分子间氢键、范德华相互作用和π-π堆积是凝胶剂自组装形成有机凝胶的作用力。通过紫外可见光谱和荧光光谱研究了化合物的光学性质。进一步的研究表明，凝胶剂 G1 可以在测试的阳离子中仅选择性和灵敏地响应 Fe。除了上述功能外，有机凝胶因子 G1 还可以响应光照、加热和摇晃，从而赋予有机凝胶多种刺激响应特性。
