Three cationic iridium(III) complexes with 1,10-phenanthroline or compounds containing 1,10-phenanthroline unit as auxiliary ligands: Synthesis and application in polymer light-emitting diodes
Three yellow-green phosphorescent cationic iridium(III) complexes [(CBT)2Ir(phen)]PF6, [(CBT)2Ir(BCP)]PF6 and [(CBT)2Ir(o-phen)]PF6 were synthesized (phen: 1,10-phenanthroline, BCP: bathocuproine, o-phen: 2-(4-tert-butylphenyl)-5-(4-(1-ethyl-H-imidazo[4,5-f][1,10]phenanthrolin-2-yl)phenyl)-1,3,4-oxadiazole, CBT: 2-(9-(2-ethylhexyl)-9H-carbazol-3-yl)benzo[d]thiazole). All of them were successfully applied
Synthesis and characterization of triazine linked carbazole derivatives green-light-emitting molecules
作者:Govindasamy Sathiyan、Pachagounder Sakthivel
DOI:10.1016/j.dyepig.2017.04.065
日期:2017.8
Novel 2,4,6-triphenyl-1,3,5-triazine linked carbazole through olefin double bond star shape molecules with different linear and branched chain were synthesized and systematically investigated by aggregation induced emission (AIE) studies and electrochemical properties. These molecules are shows broad absorbance range with good intramolecular charge transfer character (ICT). These derivatives are exhibit
合成了新颖的2,4,6-三苯基-1,3,5-三嗪通过具有不同线性和支链的烯烃双键星形分子连接的咔唑,并通过聚集诱导发射(AIE)研究和电化学性质进行了系统的研究。这些分子显示出较宽的吸收范围,并具有良好的分子内电荷转移特性(ICT)。这些衍生物表现出正溶剂溶剂变色作用,并且在6819–1119 cm -1的范围内具有较高的斯托克斯位移值。这些衍生物在THF-水混合物(TRZ-己基的10/90%,TRZ-辛基的30/70%,TRZ支链的50/50%)中显示出聚集诱导的发射(AIE)特性。电化学研究表明,TRZ-己基,TRZ-辛基和TRZ的带隙分别在1.87、1.73 eV和1.86 eV处分支。所有这些衍生物在〜-5.04 eV处具有深层最高的占据分子轨道(HOMO)能级,在〜-3.20 eV处具有LUMO能级。适当的AIE,HOMO和LUMO能级为它们在OLED和太阳能电池应用中的潜在用途铺平了道路。
Structure–property correlations of the nonlinear optical properties of a few bipodal D–π–A molecules – an experimental and theoretical approach
作者:P. K. Vineetha、A. Aswathy、E. Shiju、K. Chandrasekharan、N. Manoj
DOI:10.1039/c9nj06344g
日期:——
coefficient (β) for a given acceptor unit. The static dipole moment (μtot), mean polarizability (αtot), polarizabilityanisotropy (Δα), static first order hyperpolarizability (βtot) and second order hyperpolarizability (γtot) were calculated by using DFT at the B3LYP/6-311++G(d,p) level of theory. The trend obtained for the computed hyperpolarizability (βtot) values is in line with the trend in the
Synthesis and optoelectronic properties of a solution-processed red-emitting tetra(arylvinyl)anthracene cruciform
作者:Bing Hua、Yangyang Gao、Shian Ying、Wei Liu、Shanfeng Xue、Wenjun Yang
DOI:10.1016/j.dyepig.2015.07.006
日期:2015.12
In this paper, we report the synthesis and optoelectronicproperties of a new anthracene-centered cruciform, 2,6-bis(9,9-di(2-ethylhexyl)fluorene-2-yl-vinyl-2)- 9,10-bis(9-(2-ethylhexyl)carbazole-3-yl-vinyl-2)anthracene (FCA). FCA was prepared by the Heck coupling 2,6-bis(diethoxylphosphorylmethyl)-9,10- dibromoanthracene and 9-(2-ethylhexyl)-3-vinylcabazole, followed by the Wittig–Horner reaction
在本文中,我们报告了一种以蒽为中心的新型十字形2,6-双(9,9-二(2-乙基己基)芴-2-基-乙烯基-2)-9,10-的合成和光电性能。双(9-(2-乙基己基)咔唑-3-基-乙烯基-2)蒽(FCA)。FCA的制备是通过Heck偶联2,6-双(二乙氧基磷酰基甲基)-9,10-二溴蒽和9-(2-乙基己基)-3-乙烯基咔唑,然后进行Wittig-Horner反应与9,9-di(2- (乙基己基)-2-甲酰基芴。强扭曲的9,10分支的存在使FCA表现出适度的聚集增强发射和压电荧光致变色,并且引入许多支链烷基链使FCA具有良好的溶解性和成膜能力。FCA 可以将其用作溶液处理的发光层,以提供峰值波长为612 nm的红色发射并且最大发光效率为1.3 cd / A。