Steric Inhibition of -Stacking: 1,3,6,8-Tetraarylpyrenes as Efficient Blue Emitters in Organic Light Emitting Diodes (OLEDs)

Org. Lett., 9 (25), 5215 -5218, 2007. 10.1021/ol7023136 S1523-7060(70)02313-1
Web Release Date: November 8, 2007

Steric Inhibition of -Stacking: 1,3,6,8-Tetraarylpyrenes as Efficient Blue Emitters in Organic Light Emitting Diodes (OLEDs)

Jarugu Narasimha Moorthy,* Palani Natarajan, Parthasarathy Venkatakrishnan, Duo-Fong Huang, and Tahsin J. Chow*

Department of Chemistry, Indian Institute of Technology, Kanpur 208016, INDIA, and Institute of Chemistry, Academia Sinica, Taipei, Taiwan 115, Republic of China

moorthy@iitk.ac.in

Received September 24, 2007

Abstract:

The sterically congested tetraarylpyrenes 1-3, which can be readily accessed by Suzuki coupling, exhibit no-aggregation (

-stacking) behavior in both solution and solid states. The indisposed tendency of 1-3 toward crystallization and their moderate molecular dimensions permit exploitation as blue light emitting materials in OLEDs with respectable device performances.

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