Synthesis and Spectroscopic Characteristics of Ligands Based on Quinolin-8-Ol as Useful Precursors for Alq3 Type Complexes

2021 ◽  
Vol 903 ◽  
pp. 168-173
Author(s):  
Elmārs Zariņš ◽  
Deins Alksnis ◽  
Patricija Paulsone ◽  
Karlis Balodis ◽  
Aivars Vembris ◽  
...  
Keyword(s):  
Solid State ◽  
Light Emission ◽  
Emission Property ◽  
Blue Luminescence ◽  
Reaction Conditions ◽  
Aggregation Induced Emission ◽  
Chemical Structures ◽  
Emission Enhancement ◽  
Spectroscopic Characteristics ◽  
Reliable Methods

In order to develop reliable methods for the synthesis of various 5-substituted-8-oxyquinoline derivatives for the preparation of Alq3-type complexes, we have improved the reaction conditions on some syntheses described in the literature, successfully synthesized new ligands based on quinolin-8-ol and characterized their chemical structures by NMR. Some of the synthesized quinolin-8-ol derivatives containing incorporated bulky triphenyl or tert-butyl groups showed blue luminescence in the solid state due to the possible aggregation induced emission enhancement (AIEE) with a maximum wavelength around 510 nm. More detailed light-emission property investigation of the mentioned bulky group containing compounds is currently underway.

Topological and packing mode modification for solid-state emission enhancement of bis(perfluorostyryl)furan derivatives

2016 ◽  
Vol 40 (8) ◽  
pp. 6728-6734 ◽  
Author(s):  
Alexandre Faurie ◽  
Charlotte Mallet ◽  
Magali Allain ◽  
W. G. Skene ◽  
Pierre Frère
Keyword(s):  
Solid State ◽  
Emission Property ◽  
Furan Derivatives ◽  
Emission Enhancement ◽  
Intermolecular Contacts

An unsymmetrical bis(perfluorostyryl)furan was designed for enhancing solid-state emission property by multiplying the type and the quantity of the intermolecular contacts.

Pyrrolo[2,3-b]quinoxaline with 2-(2-aminoethyl)pyridine chain highly selective fluorescent receptor for Zn2+ exhibiting a dual fluorescence and AIEE in crystalline state

CrystEngComm ◽  
2015 ◽  
Vol 17 (3) ◽  
pp. 498-502 ◽  
Author(s):  
Katarzyna Ostrowska ◽  
Łukasz Dudek ◽  
Jarosław Grolik ◽  
Marlena Gryl ◽  
Katarzyna Stadnicka
Keyword(s):  
Charge Transfer ◽  
Solid State ◽  
Crystalline State ◽  
Intramolecular Charge Transfer ◽  
Zinc Ion ◽  
Dual Fluorescence ◽  
Aggregation Induced Emission ◽  
Emission Enhancement

The article describes the synthesis of selective dual emissive intramolecular charge transfer (ICT) receptor for zinc ion in acetonitrile, exhibiting aggregation induced emission enhancement (AIEE) in solid state.

Strategy to enhance solid-state fluorescence and aggregation-induced emission enhancement effect in pyrimidine boron complexes

2015 ◽  
Vol 44 (7) ◽  
pp. 3326-3341 ◽  
Author(s):  
Yasuhiro Kubota ◽  
Kouhei Kasatani ◽  
Hiroki Takai ◽  
Kazumasa Funabiki ◽  
Masaki Matsui
Keyword(s):  
Solid State ◽  
Enhancement Effect ◽  
Strong Fluorescence ◽  
Aggregation Induced Emission ◽  
Emission Enhancement ◽  
Boron Complexes ◽  
Solid State Fluorescence

Although non-, trifluoromethyl-, and cyano-substituted derivatives showed AIEE effects, methoxy- and dimethylamino-substituted analogues resulted in relatively strong fluorescence in solution.

3-Piperazinyl propenylidene indolone merocyanines: consecutive three-component synthesis and electronic properties of solid-state luminophores with AIE properties

2017 ◽  
Vol 1 (10) ◽  
pp. 2013-2026 ◽  
Author(s):  
Melanie Denißen ◽  
Nithiya Nirmalananthan ◽  
Thomas Behnke ◽  
Katrin Hoffmann ◽  
Ute Resch-Genger ◽  
...  
Keyword(s):  
Solid State ◽  
Electronic Properties ◽  
One Pot ◽  
Aggregation Induced Emission ◽  
Emission Enhancement

One-pot insertion-coupling-addition synthesis gives piperazinyl indolones showing aggregation induced emission and crystallization-induced emission enhancement.

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 A Solid-State Fluorescence Switch Based on Triphenylethene-Functionalized Dithienylethene With Aggregation-Induced Emission

2021 ◽  
Vol 9 ◽  
Author(s):  
Haining Zhang ◽  
Xiaoxiao Hu ◽  
Huijuan Zhu ◽  
Limin Shen ◽  
Congmin Liu ◽  
...  
Keyword(s):  
Solid State ◽  
Visible Light ◽  
Density Functional ◽  
Uv Light ◽  
Functional Theory ◽  
Aggregation Induced Emission ◽  
H Nmr ◽  
Chemical Structures ◽  
Fluorescence Switch ◽  
The Density Functional Theory

The development of novel dithienylethene-based fluorescence switches in the aggregated state, and the solid state is highly desirable for potential application in the fields of optoelectronics and photopharmacology. In this contribution, three novel triphenylethene-functionalized dithienylethenes (1–3) have been designed and prepared by appending triphenylethene moieties at one end of dithienylethene unit. Their chemical structures are confirmed by 1H NMR, 13C NMR, and HRMS (ESI). They display good photochromic behaviors with excellent fatigue resistance upon irradiation with UV or visible light in Tetrahydrofuran (THF) solution. Before irradiation with UV light, they exhibit Aggregation Induced Emission (AIE) properties and luminescence behaviors in the solid state. Moreover, upon alternating irradiation with UV/visible light, they display effective fluorescent switching behaviors in the aggregated state and the solid state. The experimental results have been validated by the Density Functional Theory (DFT) calculations. Thus, they can be utilized as novel fluorescence switches integrated in smart, solid-state optoelectronic materials and photopharmacology.

Effects of the benzoxazole group on green fluorescent protein chromophore crystal structure and solid state photophysics

2016 ◽  
Vol 4 (14) ◽  
pp. 2793-2801 ◽  
Author(s):  
Abdelhamid Ghodbane ◽  
W. Brett Fellows ◽  
John R. Bright ◽  
Debashree Ghosh ◽  
Nathalie Saffon ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Green Fluorescent Protein ◽  
Solid State ◽  
Fluorescent Protein ◽  
Aggregation Induced Emission ◽  
Emission Enhancement ◽  
Green Fluorescent ◽  
Unusual Type

Most of the conjugates exhibited aggregation-induced emission enhancement, probably involving a unusual type of excimer.

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