Molecular Design of Deep Blue Thermally Activated Delayed Fluorescence Materials Employing a Homoconjugative Triptycene Scaffold and Dihedral Angle Tuning

被引：79

作者：

Huang, Wenliang ^{[1
]}

Einzinger, Markus ^{[2
]}

Zhu, Tianyu ^{[1
]}

Chae, Hyun Sik ^{[3
]}

Jeon, Soonok ^{[4
]}

Ihn, Soo-Ghang ^{[4
]}

Sim, Myungsun ^{[4
]}

Kim, Sunghan ^{[4
]}

Su, Mingjuan ^{[1
]}

Teyeroyskiy, Georgiy ^{[1
]}

Wu, Tony ^{[2
]}

Van Voorhis, Troy ^{[1
]}

Swager, Timothy M. ^{[1
]}

Baldo, Marc A. ^{[2
]}

Buchwald, Stephen L. ^{[1
]}

机构：

[1] MIT, Dept Chem, Cambridge, MA 02139 USA

[2] MIT, Dept Elect Engn & Comp Sci, Cambridge, MA 02139 USA

[3] Samsung Adv Inst Technol, Adv Mat Lab, Mountain View, CA 94043 USA

[4] Samsung Elect Co, Samsung Adv Inst Technol, Suwon 16678, Gyeonggi Do, South Korea

来源：

CHEMISTRY OF MATERIALS | 2018年 / 30卷 / 05期

关键词：

LIGHT-EMITTING-DIODES; EXTERNAL QUANTUM EFFICIENCY; PHOTOPHYSICAL PROPERTIES; ENERGY DIFFERENCE; TUNABLE EMISSION; ORGANIC EMITTERS; EXCITED-STATES; PURE BLUE; SINGLET; DERIVATIVES;

D O I：

10.1021/acs.chemmater.7b03490

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Researchers demonstrated molecular design of deep blue thermally activated delayed fluorescence (TADF) materials employing a homoconjugative triptycene scaffold and dihedral angle tuning. Triptycene-fused carbazole (TCZ) was synthesized in four steps by applying Pd-catalyzed C−N coupling and ring closure via intramolecular C−H activation.The triazine acceptors (TRZ) were readily coupled to aryl spacers, with varying methyl substituents, in one step. Finally, palladium catalyzed N-arylation was employed to afford TCZ-TRZ, TCZ-TRZ(Me), and other methyl substituted derivatives.

引用

页码：1462 / 1466

页数：5

共 70 条

[1] Conjugated Asymmetric Donor-Substituted 1,3,5-Triazines: New Host Materials for Blue Phosphorescent Organic Light-Emitting Diodes [J].