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脱氢枞酸三芳胺基丙烯腈化合物的合成及其光物理性能研究

Dehydroabietic Acid Triarylamine-based Acrylonitrile Compounds: Synthesis and Photophysical Properties

  • 摘要: 以5-脱氢枞酸三苯胺-噻吩-2-甲醛与3,5-双(三氟甲基)苯乙腈为原料,分别在常温和加热回流的条件下反应,得到2个脱氢枞酸三芳胺基丙烯腈化合物:甲基(Z)-6-((4-(5-(2-(3, 5-双(三氟甲基)苯基)-2-氰基乙烯基)噻吩-2-基)苯基)(4-甲氧基苯基)氨基)-7-异丙基-1, 4a-二甲基-1, 2, 3, 4, 4a, 9, 10, 10a-八氢菲-1-羧酸盐(2)和二甲基6, 6'-(((1-氰基乙烯-1, 2-二基)双(噻吩-5, 2-二基))双(4, 1-苯撑)双(4-甲氧基苯基)氮杂二烯基)(E)-双(7-异丙基-1, 4a-二甲基-1, 2, 3, 4, 4a,9, 10, 10a-八氢菲-1-羧酸盐)(3)。探讨了化合物23的紫外吸收光谱、荧光发射光谱、溶致变色效应、聚集诱导发光(AIE)特性、热稳定性及电化学性能,并通过理论计算对其结构与性能的关系进行了进一步分析。研究结果表明:与三芳胺基丙烯腈化合物相比,引入脱氢枞酸骨架后,化合物表现出更大的斯托克斯位移、固体状态下更长的红光发射;化合物2表现出AIE特性,而化合物3不具有AIE特性;这两个化合物均具有较好的热稳定性和形态稳定性。脱氢枞酸骨架的引入使得23获得了更高的HOMO、LUMO能级,以及窄的带隙值。

     

    Abstract: Compounds methyl (Z)-6-((4-(5-(2-(3, 5-bis(trifluoromethyl)phenyl)-2-cyanovinyl)thiophen-2-yl) phen-yl)(4-methoxyphenyl)amino)-7-isopropyl-1, 4a-dimethyl-1, 2, 3, 4, 4a, 9, 10, 10a-octahydrophenanthrene-1-carboxylate(2) and dimethyl 6, 6'-(((1-cyanoethene-1, 2-diyl)bis(thiophene-5, 2-diyl))bis(4, 1-phenylene))bis((4-methoxyphen-yl)azanediyl))(E)-bis(7-isopropyl-1, 4a-dimethyl-1, 2, 3, 4, 4a, 9, 10, 10a-octahydrophenanthrene-1-carboxylate)(3) were obtained simply by mixing 5-(dehydroabietic acid triarylamine)-thiophene-2-carbaldehyde and 3, 5-bis(trifluoromethyl)phenylacetonitrile at room temperature and 100 ℃, respectively. The UV-Vis absorption spectra, fluorescence emission spectra, solvatochromism effect, aggregation-induced emission(AIE) characteristics, thermal stability and electrochemical performance of compounds are studied, and the relationship between their structure and performance is further studied through theoretical calculations. Compared with triarylamine-based acrylonitrile compounds, after introducing the dehydroabietic acid skeleton, the compounds show a larger stokes shift and longer red light emission in the solid state. 2 exhibits AIE characteristics, while 3 does not have AIE characteristics. Both of the two compounds have good thermal stability and morphological stability. 2 and 3 have higher highest occupied molecular orbital(HOMO), lowest unoccupied molecular orbital(LUMO) energy levels and narrow band gap, due to the introduction of dehydroabietic acid skeleton.

     

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