三对平面吖啶酮衍生物的区域异构体(9 VS 10,11 VS 12,和13 VS 14),分类为1-环化化合物(9,11,和13)和3-环化(或1,3' -cyclized)区域异构体(10,12,和14),已被合成,并且已经确定了它们的X射线结构。与3环化异构体相比,1环化化合物具有更高的收率和更低的能量。含氮化合物分子内氢键的荧光光谱(9,11,图13和图14)由两个带(对于酮形式较短的波长带和对于烯醇形式的较长波长带)组成,并且表现出激发态分子内质子转移(ESIPT)的特征。关于分子对称性的重组能(λ)的密度泛函理论(DFT)理论研究表明,平面刚性C 2 v对称多环杂芳族分子(如a啶酮,1和13)可以具有低电荷传输势垒(λ值小)并且在电荷传输过程中保持分子点基团的不变性,因此可以具有高的空穴迁移率。
三对平面吖啶酮衍生物的区域异构体(9 VS 10,11 VS 12,和13 VS 14),分类为1-环化化合物(9,11,和13)和3-环化(或1,3' -cyclized)区域异构体(10,12,和14),已被合成,并且已经确定了它们的X射线结构。与3环化异构体相比,1环化化合物具有更高的收率和更低的能量。含氮化合物分子内氢键的荧光光谱(9,11,图13和图14)由两个带(对于酮形式较短的波长带和对于烯醇形式的较长波长带)组成,并且表现出激发态分子内质子转移(ESIPT)的特征。关于分子对称性的重组能(λ)的密度泛函理论(DFT)理论研究表明,平面刚性C 2 v对称多环杂芳族分子(如a啶酮,1和13)可以具有低电荷传输势垒(λ值小)并且在电荷传输过程中保持分子点基团的不变性,因此可以具有高的空穴迁移率。
Transparent and visible light-harvesting acridone-bridged periodic mesoporous organosilica (PMO) films were prepared by acidic sol–gel polycondensation of non-methylated and N-methylated acridone-bridged bis-triethoxysilane precursors in the presence of a template surfactant via evaporation-induced self-assembly (EISA). A muddy film containing small aggregates was obtained from the non-methylated precursor. The aggregate was formed by strong intermolecular hydrogen bonds between N–H and CO of the acridone groups during EISA. However, a transparent PMO film was successfully formed from the N-methylated precursor. Capping of the amine group hindered the intermolecular hydrogen bonds and effectively suppressed aggregate formation. The obtained acridone-bridged PMO film showed a visible light absorption band with an edge at 430 nm and fluorescence emission centered at 500 nm. Furthermore, doping of a fluorescent dye into the mesochannels of the acridone–PMO promoted efficient energy funneling from the framework acridone groups into the dye, resulting in a strong fluorescence emission centered at 600 nm from the dye.
Simple Access to Sol-Gel Precursors Bearing Fluorescent Aromatic Core Units
作者:Maximilian Hemgesberg、Dominik M. Ohlmann、Yvonne Schmitt、Monique R. Wolfe、Melanie K. Müller、Benjamin Erb、Yu Sun、Lukas J. Gooßen、Markus Gerhards、Werner R. Thiel
DOI:10.1002/ejoc.201200076
日期:2012.4
Di-, tri-, and tetrathienyl-substituted polycyclic aromatic fluorophores were prepared from different aryldi-, aryltri-, or aryltetrahalides by a simple and fast Suzuki coupling. The reaction was optimized for the synthesis of the desired materials on multigram scale. The coupled products were converted into the corresponding iodides through iodination with N-iodosuccinimide. The iodides turned out
Synthesis, photophysical and electrochemical studies of acridone-amine based donor–acceptors for hole transport materials
作者:Bharat K. Sharma、Azam M. Shaikh、Neeraj Agarwal、Rajesh M. Kamble
DOI:10.1039/c5ra25115j
日期:——
of new donor–acceptor molecules based on acridone-amine containing four aryl substituted 2,7-diaminoacridones (1–4) and morpholine substituted acridone compounds (5) were synthesized in good yields using palladium catalysed Buchwald–Hartwig C–N amination. Their absorption, photoluminescence and electrochemical properties were investigated in solution and in thin films. Photophysicalproperties were found
POLYMER COMPOUND AND POLYMER LIGHT EMITTING DEVICE USING THE SAME
申请人:NOGUCHI Takanobu
公开号:US20130002989A1
公开(公告)日:2013-01-03
A polymer compound containing a structure of the following formula (B):
—Ar— (A)
(wherein, Ar represents an arylene group, divalent heterocyclic group, divalent aromatic amine group or divalent group having a metal complex structure.)
(wherein, A ring and B ring represent each independently an aromatic ring optionally having a substituent. X
1
represents —C(═O)—, —S(═O)—, —S(═O)
2
—, —P(═O)(R
1
)—, —C(R
1
)(R
2
)—, —C(R
2
)(R
2
)—, —B(R
1
)—, —N(R
1
)— or —Si(R
1
)(R
1
)—. R* represents a hydrogen atom or monovalent or divalent group, R
1
represents a hydrogen atom or monovalent group, and R
2
represents a monovalent group having a hetero atom. When R
1
and R
2
are present each in plural number, they may be the same or different.).