3278-82-8Relevant articles and documents
Stabilization of the nematic mesophase by a homogeneously dissolved conjugated polymer
Lohr, Andreas,Swager, Timothy M.
, p. 8107 - 8111 (2010)
A semi-conjugated iptycene polymer containing a special "crankshaft" backbone leading to superior solubility in a nematic LC medium was synthesized. The incorporation of this polymer in the LC leads to thermodynamic stabilization of the nematic mesophase. This effect is attributed to organizational coupling of the LC molecules to the polymer chains.
Synthesis and property of new blue emitting materials with bulky side group
Kang, Seokwoo,Lee, Hayoon,Kim, Beomjin,Kang, Hyeonmi,Park, Jongwook
, p. 66 - 73 (2015)
Two emitting compounds, 9,10-bis-[1,1′;3′,1″]terphenyl-5′-yl-1,5-di-o-tolyl-anthracene [TP-DTA-TP] and 9,10-bis-phenyl[1,1′;3′,1′′]triphenyl-5′-yl-1,5-di-o-tolyl-anthracene [TPB-DTA-TPB] based on new twisted core moiety were synthesized through boration, Suzuki reaction, and Sandmeyer reactions. EL performance was improved by varying the chemical structure of the side group. Physical properties such as optical, electrochemical, and electroluminescent properties were investigated. Synthesized compounds were used as an EML in OLED device: ITO / 2-TNATA (60nm) / NPB (15nm)/ TP-DTA-TP or TPB-DTA-TPB (35 nm) / Alq3 (20nm) / LiF (1nm) / Al (200nm). It was found that TPB-DTA-TPB showed higher luminance efficiency and better C.I.E. value than TP-DTA-TP device.
Modular Approach to the Synthesis of Two-Dimensional Angular Fused Acenes
Feofanov, Mikhail,Akhmetov, Vladimir,Sharapa, Dmitry I.,Amsharov, Konstantin
supporting information, p. 1698 - 1702 (2020/01/31)
Herein, we present a modular approach to pristine angularly fused planar acenes. The approach includes the Pd-catalyzed fusion of several building blocks and implements a dehydrative ?-extension (DPEX) reaction as a key step enabling facile access to diverse two-dimensional acenes. The scope was demonstrated on nine examples with up to quantitative yield.