当前位置: X-MOL 学术Indian J. Chem. Sect. B › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Pyrene appended terpyridine derivatives as electrochemiluminescence material for OLEDs: Characterization of photo-physical, thermal and electrochemical properties
Indian Journal of Chemistry, Section B Pub Date : 2020-10-13
Gorakala Umasankar, Manohar Reddy Busireddy, Bhanuprakash Kotamarthi, Galla V Karunakar, Vaidya Jayathirtha Rao

Three new terpyridine appended pyrene derivatives (Pyr-Tp, Pyr-Ph-Tp, and Pyr-Bp-Tp) have been synthesized by condensation and Suzuki-Miyaura reaction. The photo-physical, electro-chemical and thermal properties of these compounds have been investigated in detail. DFT studies have been carried out to understand the structure-property relationships at the molecular level. Synthesized fluorophores displayed high quantum yield (70-96%) of fluorescence due to triplet to singlet intramolecular energy transfer, delayed fluorescence and positive solvatochromism indicating the presence of intra-molecular charge transfer excited state. In addition, they have high thermal decomposition temperature (Td: 390-450°C), melting temperature (Tm: 180-220°C) and further with suitable oxidation and reduction potentials makes them favourable molecules for OLED fabrications.

中文翻译:

附加的吡啶吡啶衍生物作为OLED的电化学发光材料:光物理,热和电化学性质的表征

通过缩合和Suzuki-Miyaura反应合成了三种新的附有吡啶的pyr衍生物(Pyr-TpPyr-Ph-TpPyr-Bp-Tp)。已对这些化合物的光物理,电化学和热性质进行了详细研究。已经进行了DFT研究以了解分子水平上的结构-性质关系。合成的荧光团由于三重态到单重态分子内能量转移,延迟的荧光和正溶剂溶变色而显示出高的量子产率(70-96%),表明存在分子内电荷转移激发态。此外,它们的热分解温度(T d:390-450°C)和熔化温度(Tm:180-220℃)以及进一步合适的氧化和还原电势使它们成为用于OLED制造的有利分子。
更新日期:2020-10-13
down
wechat
bug