Exploration of Highly Efficient Blue–Violet Light Conversion Agents for an Agricultural Film Based on Structure Optimization of Triphenylacrylonitrile,Journal of Agricultural and Food Chemistry

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Exploration of Highly Efficient Blue–Violet Light Conversion Agents for an Agricultural Film Based on Structure Optimization of Triphenylacrylonitrile
Journal of Agricultural and Food Chemistry ( IF 5.7 ) Pub Date : 2018-11-26 00:00:00 , DOI: 10.1021/acs.jafc.8b05453
Yongtao Wang _{1,

2} , Yongjiang Yu ₁ , Wenjing Liu ₁ , Litong Ren ₁ , Guixian Ge ₁

Affiliation

To obtain highly efficient blue–violet light conversion agents used for an agricultural film, six triarylacrylonitrile derivatives and their doping films were prepared. Further, the luminogens have the ability to convert ultraviolet light into blue–violet light and exhibit aggregation-dependent fluorescence emission and high-contrast fluorescence quantum yields from 0.004 to 0.833. On the basis of X-ray single-crystal diffraction analysis and aggregation-induced emission activity tests, the variant fluorescence quantum yields are attributed to intermolecular π–π stacking and phase transition between the crystalline state and amorphous state. In a simulated greenhouse environment, the luminogens exhibit excellent photostability. However, their fluorescence intensity drops to 17–40% of the prime intensity after outdoor radiation for 1 month as a result of the ring-closing oxidation reaction (in the summer). By comprehensively considering the above photophysical properties and mechanical properties of the doping film, 2-([1,1′-biphenyl]-4-yl)-3,3-diphenylacrylonitrile is a potential light conversion agent for an agricultural film in the winter. More importantly, the results indicate that the properties of the light conversion films are expected to be further improved by molecular design, inhibiting the ring-closing oxidation reaction and dispersion of crystalline nanoparticles in the doping film.

中文翻译：

基于三苯基丙烯腈结构优化的高效农膜蓝紫光转换剂的探索

为了获得用于农业薄膜的高效蓝紫色光转换剂，制备了六种三芳基丙烯腈衍生物及其掺杂薄膜。此外，发光剂具有将紫外光转换为蓝紫色光的能力，并具有聚集相关的荧光发射和高对比度的荧光量子产率（从0.004到0.833）。根据X射线单晶衍射分析和聚集诱导的发射活性测试，变异的荧光量子产率归因于分子间π-π堆积以及晶态和非晶态之间的相变。在模拟的温室环境中，发光剂具有出色的光稳定性。然而，由于闭环氧化反应（夏季），它们的荧光强度在室外辐射1个月后降至主要强度的17-40％。通过综合考虑掺杂膜的上述光物理性质和机械性质，2-（[1,1'-联苯] -4-基）-3,3-二苯基丙烯腈是冬季农用薄膜的潜在光转换剂。。更重要的是，结果表明，通过分子设计，有望进一步改善光转换膜的性能，从而抑制了闭环氧化反应和结晶纳米颗粒在掺杂膜中的分散。1'-联苯基] -4-基）-3,3-二苯基丙烯腈是冬季农用薄膜的潜在光转换剂。更重要的是，结果表明，通过分子设计，有望进一步改善光转换膜的性能，从而抑制了闭环氧化反应和结晶纳米颗粒在掺杂膜中的分散。1'-联苯基] -4-基）-3,3-二苯基丙烯腈是冬季农用薄膜的潜在光转换剂。更重要的是，结果表明，通过分子设计，有望进一步改善光转换膜的性能，从而抑制了闭环氧化反应和结晶纳米颗粒在掺杂膜中的分散。

更新日期：2018-11-26

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