The invention relates to novel organic semiconducting compounds containing a polycyclic unit, to methods for their preparation and educts or intermediates used therein, to compositions, polymer blends and formulations containing them, to the use of the compounds, compositions and polymer blends as organic semiconductors in, or for the preparation of, organic electronic (OE) devices, especially organic photovoltaic (OPV) devices, perovskite-based solar cell (PSC) devices, organic photodetectors (OPD), organic field effect transistors (OFET) and organic light emitting diodes (OLED), and to OE, OPV, PSC, OPD, OFET and OLED devices comprising these compounds, compositions or polymer blends.
series of A–π–D–π–A fluorene derivatives, which simultaneously exhibit negative solvatochromism, aggregation-induced emission (AIE) and mechanoresponsive luminescence (MRL) turn-on. These molecules contain the same fluorene donor (D) and 1,3-indandione acceptor (A) but differ in alkyl substituents in the 9-position of the fluorene segment, including 9,9-dibutyl (b-DIPF), 9,9-dioctyl (o-DIPF) and 9,9-didodecyl
极性环境和聚集状态下的发光效率,以及在外部刺激下的高对比度发光开/关切换是开发功能性荧光材料时要解决的重要问题。结合分子内电荷转移(ICT)化合物中溶剂致变色效应的优势及其纳米结构形态效应,我们在此报告了一系列A–π–D–π–A芴衍生物,它们同时表现出负溶剂致变色,聚集诱导发射(AIE )和机械响应发光(MRL)开启。这些分子包含相同的芴供体(D)和1,3-茚满二酮受体(A),但在芴链段的9位烷基取代基不同,包括9,9-二丁基(b -DIPF),9,9 -二辛基(o-DIPF)和9,9-二十二烷基(d -DIPF)。这些化合物的发射颜色从蓝色变为橘红色,并且随着溶剂极性从非极性己烷增加到极性二甲基亚砜,荧光量子产率增加。由于形成了无规纳米结构的聚集体,因此该化合物在THF / H 2 O混合物中显示出AIE特性。相反,通过在真空下快速蒸发二氯甲烷溶剂而获得的发射淬灭0D粒子表现出了显着的机
Efficient Synthesis of Novel Porphyrin Dimers with Versatile Linkers via Bis(dipyrromethanes) in an Excellent Mixed-Solvent
作者:Hongbin Zhao、Junxu Liao、Deliang Yang、Yujia Xie、Yongjun Xu、Hongke Wang、Bangying Wang
DOI:10.1071/ch12521
日期:——
A general and efficient protocol has been developed to synthesise a series of novel porphyrin dimers with versatile aryl linkers via a simultaneous condensation-cyclisation-oxidation reaction of diverse bis(dipyrromethanes) with dipyrromethane-dicarbinol catalysed by indium(iii) chloride at room temperature in an efficient CH2Cl2 and CH3CN mixed-solvent. The reaction yields increased to 21–26 % based
申请人:The Industry & Academic Cooperation in Chungnam National University (IAC) 충남대학교산학협력단(220040084104) BRN ▼314-82-09264
公开号:KR102110888B1
公开(公告)日:2020-05-14
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