Structure-Property Relationships and Nonlinear Optical Effects in Donor-Substituted Dicyanopyrazine-Derived Push-Pull Chromophores with Enlarged and Varied π-Linkers
作者:Filip Bureš、Hana Čermáková、Jiří Kulhánek、Miroslav Ludwig、Wojciech Kuznik、Iwan V. Kityk、Tomáš Mikysek、Aleš Růžička
DOI:10.1002/ejoc.201101226
日期:2012.1
hyperpolarizability values enabled structure–property studies; these revealed some important structural features that affected the efficiency of intramolecular charge-transfer and nonlinearoptical properties in this class ofheterocyclic push–pullchromophores. The charge-transfer transition was most significantly affected by structuralfeatures such as π-linker length, chromophore planarity, and the number
DICYANOPYRAZINE COMPOUND, LUMINESCENT MATERIAL, LUMINESCENCE DEVICE USING THE SAME, AND METHOD FOR PRODUCING 2,5-DICYANO-3,6-DIHALOGENOPYRAZINE
申请人:KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION
公开号:US20180273513A1
公开(公告)日:2018-09-27
A compound represented by formula (I) or formula (1I):
in formula (I), R
3
represents an electron donating group, R
4
represents a hydrogen atom, a substituted or unsubstituted aryl group or an electron donating group, L
3
represents a substituted or unsubstituted heteroarylene group or a substituted or unsubstituted arylene group, L
4
represents a single bond, a substituted or unsubstituted heteroarylene group or a substituted or unsubstituted arylene group, L
3
and L
4
may bond together to form a ring with the carbon atoms to which they are bonded,
in formula (II), R
5
represents an electron donating group, R
6
represents a hydrogen atom, a substituted or unsubstituted aryl group or an electron donating group, L
5
represents a substituted or unsubstituted heteroarylene group or a substituted or unsubstituted arylene group, L
6
represents a single bond, a substituted or unsubstituted heteroarylene group or a substituted or unsubstituted arylene group.
Full-Color Delayed Fluorescence Materials Based on Wedge-Shaped Phthalonitriles and Dicyanopyrazines: Systematic Design, Tunable Photophysical Properties, and OLED Performance
Purely organiclight‐emitting materials, which can harvest both singlet and triplet excited states to offer high electron‐to‐photon conversion efficiencies, are essential for the realization of high‐performanceorganiclight‐emittingdiodes (OLEDs) without using precious metal elements. Donor–acceptor architectures with an intramolecular charge‐transfer excited state have been proved to be a promising
DICYANOPYRAZINE COMPOUND, LUMINESCENT MATERIAL, LIGHT TRANSMITTER USING SAME, AND PRODUCTION METHOD FOR 2,5-DICYANO-3,6-DIHALOGENOPYRAZINE
申请人:Kyushu University
National University Corporation
公开号:EP3375779A1
公开(公告)日:2018-09-19
A compound represented by formula (I) or formula (II):
in formula (I), R3 represents an electron donating group, R4 represents a hydrogen atom, a substituted or unsubstituted aryl group or an electron donating group, L3 represents a substituted or unsubstituted heteroarylene group or a substituted or unsubstituted arylene group, L4 represents a single bond, a substituted or unsubstituted heteroarylene group or a substituted or unsubstituted arylene group, L3 and L4 may bond together to form a ring with the carbon atoms to which they are bonded,
in formula (II), R5 represents an electron donating group, R6 represents a hydrogen atom, a substituted or unsubstituted aryl group or an electron donating group, L5 represents a substituted or unsubstituted heteroarylene group or a substituted or unsubstituted arylene group, L6 represents a single bond, a substituted or unsubstituted heteroarylene group or a substituted or unsubstituted arylene group.
Dicyanopyrazine compound, luminescent material, luminescence device using the same, and method for producing 2,5-dicyano-3,6-dihalogenopyrazine
申请人:KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION
公开号:US10399960B2
公开(公告)日:2019-09-03
A compound represented by formula (I) or formula (II):
in formula (I), R3 represents an electron donating group, R4 represents a hydrogen atom, a substituted or unsubstituted aryl group or an electron donating group, L3 represents a substituted or unsubstituted heteroarylene group or a substituted or unsubstituted arylene group, L4 represents a single bond, a substituted or unsubstituted heteroarylene group or a substituted or unsubstituted arylene group, L3 and L4 may bond together to form a ring with the carbon atoms to which they are bonded,
in formula (II), R5 represents an electron donating group, R6 represents a hydrogen atom, a substituted or unsubstituted aryl group or an electron donating group, L5 represents a substituted or unsubstituted heteroarylene group or a substituted or unsubstituted arylene group, L6 represents a single bond, a substituted or unsubstituted heteroarylene group or a substituted or unsubstituted arylene group.