Aggregation-induced emission behavior of a pH-controlled molecular shuttle based on a tetraphenylethene moiety

2015 ◽  
Vol 13 (38) ◽  
pp. 9767-9774 ◽  
Author(s):  
Xie Han ◽  
Meijiao Cao ◽  
Zhiqiang Xu ◽  
Di Wu ◽  
Zhao Chen ◽  
...  
Keyword(s):  
Aggregation Induced Emission ◽  
Emission Behavior ◽  
Molecular Shuttle ◽  
Ph Controlled

A TPE-based molecular shuttle having amide and amine units has been synthesized. The shuttling motion of the macrocycle component can adjust its AIE behaviour.

Aggregation-induced emission in precursors to porous molecular crystals

2017 ◽  
Vol 53 (72) ◽  
pp. 10022-10025 ◽  
Author(s):  
Zhenglin Zhang ◽  
Mohamed I. Hashim ◽  
Ognjen Š. Miljanić
Keyword(s):  
Solid State ◽  
Molecular Crystals ◽  
Aggregation Induced Emission ◽  
Emission Behavior ◽  
Solid State Fluorescence

Trigonal fluorinated pyrazoles assemble into porous molecular crystals and show solid-state fluorescence. However, their emission behavior in solution is dramatically different.

Thermo-responsive poly(2-isopropyl-2-oxazoline) and tetraphenylethene hybrids for stimuli-responsive photoluminescence control

2016 ◽  
Vol 52 (22) ◽  
pp. 4152-4155 ◽  
Author(s):  
Joo-Ho Kim ◽  
Dajeong Yim ◽  
Woo-Dong Jang
Keyword(s):  
Fluorescence Emission ◽  
Thermal Control ◽  
Stimuli Responsive ◽  
Aggregation Induced Emission ◽  
Responsive Polymer ◽  
Emission Behavior

Poly(2-isopropyl-2-oxazoline) (POx), a typical thermo-responsive polymer, was conjugated with a tetraphenylethene derivative, having aggregation induced emission behavior, towards the thermal control of their fluorescence emission.

scholarly journals Photoinduced Pyramidal Inversion Behavior of Phosphanes Involved with Aggregation‐Induced Emission Behavior

2020 ◽  
Vol 26 (36) ◽  
pp. 8028-8034 ◽  
Author(s):  
Takashi Machida ◽  
Takeshi Iwasa ◽  
Tetsuya Taketsugu ◽  
Kazuki Sada ◽  
Kenta Kokado
Keyword(s):  
Aggregation Induced Emission ◽  
Pyramidal Inversion ◽  
Emission Behavior

scholarly journals Photoinduced Pyramidal Inversion Behavior of Phosphanes Involved with Aggregation‐Induced Emission Behavior

2020 ◽  
Vol 26 (36) ◽  
pp. 7965-7965
Author(s):  
Takashi Machida ◽  
Takeshi Iwasa ◽  
Tetsuya Taketsugu ◽  
Kazuki Sada ◽  
Kenta Kokado
Keyword(s):  
Aggregation Induced Emission ◽  
Pyramidal Inversion ◽  
Emission Behavior

Similar and Different: Effect of Substitution Pattern on the Aggregation-Induced Emission Property of [4'-(bisphenylamino)[1,1']biphenyl]methylene Fluorenes

2013 ◽  
Vol 859 ◽  
pp. 329-332
Author(s):  
Zhi Chen ◽  
Yi Long Xie ◽  
Jin Xing Qiu ◽  
Zhong He Chen
Keyword(s):  
Solid State ◽  
Optical Property ◽  
Quantum Yield ◽  
Suzuki Coupling ◽  
Emission Property ◽  
Aggregate State ◽  
Substitution Pattern ◽  
Aggregation Induced Emission ◽  
Emission Behavior ◽  
Fluorescent Quantum Yield

Three isomers, [4'-(bisphenylamino)[1,1']biphen-2-yl]methylenefluorene (BAB2MF), [4'-(bisphenylamino)[1,1']biphen-3-yl]methylenefluorene (BAB3MF) and [4'-(bisphenylamino)[1,1']biphen-4-yl]methylenefluorene (BAB4MF), were synthesized through Suzuki coupling. The substitution pattern exerts a dramatic influence on the optical property. BAB3MF and BAB4MF are hardly emissive either in the solution or as solid state. On the contrary, BAB2MF emits strongly, especially in the aggregate state with a high fluorescent quantum yield of 69%. Furthermore, BAB2MF shows an aggregation-induced enhanced emission behavior. BAB2MF solid emits at 488 nm, about 60 nm blue-shifted from its solution.

scholarly journals Aggregation-Induced Emission: A Challenge for Computational Chemistry. the Example of TPA-BMO.

2021 ◽  
Author(s):  
Laure de Thieulloy ◽  
Laura Le Bras ◽  
Benoît Zumer ◽  
Claire Lemarchand ◽  
Nicolas Pineau ◽  
...  
Keyword(s):  
Low Frequency ◽  
Vibrational Modes ◽  
Aggregation Induced Emission ◽  
Multi Scale ◽  
Td Dft ◽  
Emission Behavior ◽  
Intramolecular Vibrations ◽  
Dynamics Simulations ◽  
Antagonist Effect

A multi-scale and multi-environment computational approach is proposed to study of the modulation of the emission behavior of the triphenylamine (Z)-4-benzylidene-2-methyloxazol-5(4H)-one (TPA-BMO) molecule [Tang <i>et al</i>., J. Phys. Chem. C,<b>119</b>, 21875 (2015)]. Going from (TD-)DFT calculations to classical Molecular Dynamics simulations through the hybrid ONIOM QM/QM’ approach and the <i> </i><i>in situ</i> chemical polymerization methodology, we have rationalized distinct photophysical phenomena: (1) in low-polar solvents, a polarity-dependent solvatochromic effect as well as a modulation of the emission quantum yield, attributed to possible photophysical energy dissipation caused by low-frequency vibrational modes, (2) in the aggregate, a subtle competition between an excitonic coupling and a restriction of the intramolecular vibrations leading to an Aggregation-Induced Emission behavior, and (3) in the polymer matrix, an antagonist effect between the loss of global flexibility and the presence of vibrational modes similar to those observed in solution, explaining a similar emissive behavior within the polymer.<p></p>

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