In this work, the solubility data of 9-fluorenone in 11 pure solvents(methanol, ethanol, n-propanol, isopropanol, n-butanol, iso-butanol, acetonitrile, ethyl formate, ethyl acetate, dimethyl sulfoxide, n-hexane)were m...In this work, the solubility data of 9-fluorenone in 11 pure solvents(methanol, ethanol, n-propanol, isopropanol, n-butanol, iso-butanol, acetonitrile, ethyl formate, ethyl acetate, dimethyl sulfoxide, n-hexane)were measured by the gravimetric method from 278.15 K to 318.15 K under atmospheric pressure. The results showed that the solubility of 9-fluorenone in all tested solvents increased with the raised temperature. The solubility data were correlated by the modified Apelblat equation, λh model and NRTL(nonradom two fluid) model. The average relative deviation(ARD) correlated by three thermodynamic models in different solvents was all below 5%, which indicated that the three thermodynamic models fit the solubility data well. Furthermore, the mixing thermodynamic properties of 9-fluorenone in pure solvent systems were calculated via NRTL model. The results indicated the dissolution process of 9-fluorenone is spontaneous and entropically favorable. The solubility and the mixing thermodynamic properties provided in this paper would play an important role in industrial manufacture and follow-up operation of 9-fluorenone.展开更多
以芴酮为基础,通过引入吩噻嗪基团,利用Ullmann反应合成了化合物2,7-二-(N-吩噻嗪基)芴酮(DPhFO);利用核磁共振氢谱(1 H NMR)和傅立叶红外光谱(FT-IR)对所合成的化合物进行了结构表征;利用紫外可见吸光光度计(UV)、荧光分光光度计(PL)...以芴酮为基础,通过引入吩噻嗪基团,利用Ullmann反应合成了化合物2,7-二-(N-吩噻嗪基)芴酮(DPhFO);利用核磁共振氢谱(1 H NMR)和傅立叶红外光谱(FT-IR)对所合成的化合物进行了结构表征;利用紫外可见吸光光度计(UV)、荧光分光光度计(PL)、热重分析(TGA)和循环伏安法(CV)对产物的性能进行了初步的验证。结果表明,所合成的化合物(DPhFO)能实现深蓝光发射,具有较高的热稳定性,且不易结晶,易溶于二氯甲烷等常见有机溶剂。DPhFO是一种性能优良的可应用于有机照明和显示的蓝光主体材料,具有很好的发展前景。展开更多
本文设计合成了2种新型的基于9-芴酮(FN)的D-A-A'构型的有机小分子光伏给体材料TPAFNPI和TPAFNDI.2种结构均采用三苯胺(TPA)作为给电子单元,三键作为π桥,并引入不同的末端吸电子单元邻苯二甲酰亚胺(PI)和靛红(DI)进行端基修饰.这种...本文设计合成了2种新型的基于9-芴酮(FN)的D-A-A'构型的有机小分子光伏给体材料TPAFNPI和TPAFNDI.2种结构均采用三苯胺(TPA)作为给电子单元,三键作为π桥,并引入不同的末端吸电子单元邻苯二甲酰亚胺(PI)和靛红(DI)进行端基修饰.这种D-A-A'结构不仅可以有效改善分子内电荷转移效应,同时也弥补了在9-芴酮上引入氰基的缺点,三苯胺(D)的扭转结构还可以避免由于过度聚集而形成较大的相分离分寸.通过调控末端吸电子单元有利于改善电子云分布,从而促进分子内的电荷传输,还有利于获得更低的最高占据轨道与最低空轨道能级.通过紫外-可见吸收光谱和循环伏安法对材料的光电性质进行探究,并将其作为给体材料与富勒烯受体(PC_(61)BM/PC_(71)BM)共混制备成本体异质结器件.结果显示,TPAFNPI和TPAFNDI均具有较窄的带隙,分别为1.75和1.72 e V.2种材料与PC_(71)BM混合后分别获得了1.05和1.01 V的开路电压,而靛红由于具有更强的吸电子性,从而使TPAFNDI具有更窄的带隙和更强的光吸收特性,其短路电流密度可达到11.46 m A·cm^(-2),光电转化效率为3.37%.展开更多
基金The National Natural Science Foundation of China(61627802,U1531107)the National Undergraduate Training Program for Innovation and Entrepreneurship(202010288046Z)。
基金supported by Tianjin Municipal Natural Science Foundation (21JCYBJC00600)。
文摘In this work, the solubility data of 9-fluorenone in 11 pure solvents(methanol, ethanol, n-propanol, isopropanol, n-butanol, iso-butanol, acetonitrile, ethyl formate, ethyl acetate, dimethyl sulfoxide, n-hexane)were measured by the gravimetric method from 278.15 K to 318.15 K under atmospheric pressure. The results showed that the solubility of 9-fluorenone in all tested solvents increased with the raised temperature. The solubility data were correlated by the modified Apelblat equation, λh model and NRTL(nonradom two fluid) model. The average relative deviation(ARD) correlated by three thermodynamic models in different solvents was all below 5%, which indicated that the three thermodynamic models fit the solubility data well. Furthermore, the mixing thermodynamic properties of 9-fluorenone in pure solvent systems were calculated via NRTL model. The results indicated the dissolution process of 9-fluorenone is spontaneous and entropically favorable. The solubility and the mixing thermodynamic properties provided in this paper would play an important role in industrial manufacture and follow-up operation of 9-fluorenone.
文摘以芴酮为基础,通过引入吩噻嗪基团,利用Ullmann反应合成了化合物2,7-二-(N-吩噻嗪基)芴酮(DPhFO);利用核磁共振氢谱(1 H NMR)和傅立叶红外光谱(FT-IR)对所合成的化合物进行了结构表征;利用紫外可见吸光光度计(UV)、荧光分光光度计(PL)、热重分析(TGA)和循环伏安法(CV)对产物的性能进行了初步的验证。结果表明,所合成的化合物(DPhFO)能实现深蓝光发射,具有较高的热稳定性,且不易结晶,易溶于二氯甲烷等常见有机溶剂。DPhFO是一种性能优良的可应用于有机照明和显示的蓝光主体材料,具有很好的发展前景。
文摘本文设计合成了2种新型的基于9-芴酮(FN)的D-A-A'构型的有机小分子光伏给体材料TPAFNPI和TPAFNDI.2种结构均采用三苯胺(TPA)作为给电子单元,三键作为π桥,并引入不同的末端吸电子单元邻苯二甲酰亚胺(PI)和靛红(DI)进行端基修饰.这种D-A-A'结构不仅可以有效改善分子内电荷转移效应,同时也弥补了在9-芴酮上引入氰基的缺点,三苯胺(D)的扭转结构还可以避免由于过度聚集而形成较大的相分离分寸.通过调控末端吸电子单元有利于改善电子云分布,从而促进分子内的电荷传输,还有利于获得更低的最高占据轨道与最低空轨道能级.通过紫外-可见吸收光谱和循环伏安法对材料的光电性质进行探究,并将其作为给体材料与富勒烯受体(PC_(61)BM/PC_(71)BM)共混制备成本体异质结器件.结果显示,TPAFNPI和TPAFNDI均具有较窄的带隙,分别为1.75和1.72 e V.2种材料与PC_(71)BM混合后分别获得了1.05和1.01 V的开路电压,而靛红由于具有更强的吸电子性,从而使TPAFNDI具有更窄的带隙和更强的光吸收特性,其短路电流密度可达到11.46 m A·cm^(-2),光电转化效率为3.37%.
