Aggregation-induced emission and reversible mechanochromic luminescence of carbazole-based triphenylacrylonitrile derivatives

RSC Advances ◽  
2016 ◽  
Vol 6 (39) ◽  
pp. 32697-32704 ◽  
Author(s):  
Yong Zhan ◽  
Peng Gong ◽  
Peng Yang ◽  
Zhe Jin ◽  
Ying Bao ◽  
...  
Keyword(s):  
Solid State ◽  
Organic Molecules ◽  
Stimuli Responsive ◽  
Responsive Materials ◽  
Aggregation Induced Emission ◽  
Π Interactions ◽  
Conjugated Organic Molecules ◽  
Mechanochromic Luminescence

Conjugated organic molecules exhibiting AIE are characterized by the strongly twisted conjugated skeleton, which could provide loose intermolecular stacking and weak π–π interactions in the solid state to generate stimuli-responsive materials.

scholarly journals Redox-State Dependent Spectroscopic Properties of Porous Organic Polymers Containing Furan, Thiophene, and Selenophene

2017 ◽  
Vol 70 (11) ◽  
pp. 1227 ◽  
Author(s):  
Carol Hua ◽  
Stone Woo ◽  
Aditya Rawal ◽  
Floriana Tuna ◽  
James M. Hook ◽  
...  
Keyword(s):  
Solid State ◽  
Redox State ◽  
Spectroscopic Properties ◽  
Structural Features ◽  
Organic Polymers ◽  
Stimuli Responsive ◽  
Porous Organic Polymers ◽  
Paramagnetic Resonance ◽  
Responsive Materials ◽  
State Dependent

A series of electroactive triarylamine porous organic polymers (POPs) with furan, thiophene, and selenophene (POP-O, POP-S, and POP-Se) linkers have been synthesised and their electronic and spectroscopic properties investigated as a function of redox state. Solid state NMR provided insight into the structural features of the POPs, while in situ solid state Vis-NIR and electron paramagnetic resonance spectroelectrochemistry showed that the distinct redox states in POP-S could be reversibly accessed. The development of redox-active porous organic polymers with heterocyclic linkers affords their potential application as stimuli responsive materials in gas storage, catalysis, and as electrochromic materials.

scholarly journals Redox-triggered switching in three-dimensional covalent organic frameworks

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Chao Gao ◽  
Jian Li ◽  
Sheng Yin ◽  
Junliang Sun ◽  
Cheng Wang
Keyword(s):  
Solid State ◽  
Three Dimensional ◽  
Molecular Switches ◽  
Pore Channel ◽  
Pore Surface ◽  
Stimuli Responsive ◽  
Conversion Yield ◽  
Responsive Materials ◽  
Reversible Transformation ◽  
Internal Pore

Abstract The tuning of molecular switches in solid state toward stimuli-responsive materials has attracted more and more attention in recent years. Herein, we report a switchable three-dimensional covalent organic framework (3D COF), which can undergo a reversible transformation through a hydroquinone/quinone redox reaction while retaining the crystallinity and porosity. Our results clearly show that the switching process gradually happened through the COF framework, with an almost quantitative conversion yield. In addition, the redox-triggered transformation will form different functional groups on the pore surface and modify the shape of pore channel, which can result in tunable gas separation property. This study strongly demonstrates 3D COFs can provide robust platforms for efficient tuning of molecular switches in solid state. More importantly, switching of these moieties in 3D COFs can remarkably modify the internal pore environment, which will thus enable the resulting materials with interesting stimuli-responsive properties.

scholarly journals Multi-stimuli responsive luminescent azepane-substituted β-diketones and difluoroboron complexes

2017 ◽  
Vol 1 (9) ◽  
pp. 1866-1874 ◽  
Author(s):  
Fang Wang ◽  
Christopher A. DeRosa ◽  
Margaret L. Daly ◽  
Daniel Song ◽  
Michal Sabat ◽  
...  
Keyword(s):  
Stimuli Responsive ◽  
Aggregation Induced Emission ◽  
Mechanochromic Luminescence

Multi-stimuli responsive properties were found for azepane-substituted β-diketones and difluoroboron complexes, including solvatochromism, viscochromism, aggregation-induced emission, mechanochromic luminescence and halochromism.

Controlling solid-state optical properties of stimuli responsive dimethylamino-substituted dibenzoylmethane materials

2017 ◽  
Vol 1 (9) ◽  
pp. 1804-1817 ◽  
Author(s):  
Tristan Butler ◽  
Fang Wang ◽  
Michal Sabat ◽  
Cassandra L. Fraser
Keyword(s):  
Optical Properties ◽  
Solid State ◽  
Stimuli Responsive ◽  
Aggregation Induced Emission ◽  
Color Range ◽  
Orange Color

Dimethylamino β-diketones with electron donating and withdrawing substituents displayed solvatochromism and aggregation induced emission. In the solid state, a blue to orange color range and thermal and mechanoresponsive properties were achieved.

scholarly journals Developing the structure–property relationship to design solid state multi-stimuli responsive materials and their potential applications in different fields

2018 ◽  
Vol 9 (14) ◽  
pp. 3592-3606 ◽  
Author(s):  
Bibhisan Roy ◽  
Mallu Chenna Reddy ◽  
Partha Hazra
Keyword(s):  
Charge Transfer ◽  
Solid State ◽  
Stimuli Responsive ◽  
Structure Property ◽  
Responsive Materials ◽  
Property Relationship ◽  
Structure Property Relationship ◽  
Potential Applications

Establishing the structure–property relationship for multi-stimuli responsive mechanochromic materials based on charge transfer luminogens.

Mechanochromic luminescence and aggregation induced emission for a metal-free β-diketone

2015 ◽  
Vol 51 (16) ◽  
pp. 3359-3362 ◽  
Author(s):  
Tristan Butler ◽  
William A. Morris ◽  
Jelena Samonina-Kosicka ◽  
Cassandra L. Fraser
Keyword(s):  
Solid State ◽  
Aggregation Induced Emission ◽  
Metal Free ◽  
Mechanochromic Luminescence

Solvatochromism and aggregation-induced emission were investigated for methoxy-substituted dinaphthyl diketone solutions and solid-state properties, including reversible mechanochromic luminescence, were explored for films.

scholarly journals Recent Advances in Aggregation-Induced Emission Chemosensors for Anion Sensing

Molecules ◽  
2019 ◽  
Vol 24 (15) ◽  
pp. 2711 ◽  
Author(s):  
Ming Hui Chua ◽  
Kwok Wei Shah ◽  
Hui Zhou ◽  
Jianwei Xu
Keyword(s):  
Rapid Detection ◽  
High Selectivity ◽  
Anionic Surfactants ◽  
High Sensitivity ◽  
Biological Sensing ◽  
Stimuli Responsive ◽  
Anion Sensing ◽  
Responsive Materials ◽  
Aggregation Induced Emission ◽  
Anionic Species

The discovery of the aggregation-induced emission (AIE) phenomenon in the early 2000s not only has overcome persistent challenges caused by traditional aggregation-caused quenching (ACQ), but also has brought about new opportunities for the development of useful functional molecules. Through the years, AIE luminogens (AIEgens) have been widely studied for applications in the areas of biomedical and biological sensing, chemosensing, optoelectronics, and stimuli responsive materials. Particularly in the application of chemosensing, a myriad of novel AIE-based sensors has been developed to detect different neutral molecular, cationic and anionic species, with a rapid detection time, high sensitivity and high selectivity by monitoring fluorescence changes. This review thus summarises the recent development of AIE-based chemosensors for the detection of anionic species, including halides and halide-containing anions, cyanides, and sulphur-, phosphorus- and nitrogen- containing anions, as well as a few other anionic species, such as citrate, lactate and anionic surfactants.

scholarly journals Structure–property relationships in aromatic thioethers featuring aggregation-induced emission: solid-state structures and theoretical analysis

CrystEngComm ◽  
2019 ◽  
Vol 21 (19) ◽  
pp. 3097-3105 ◽  
Author(s):  
Marco Saccone ◽  
Steffen Riebe ◽  
Jacqueline Stelzer ◽  
Christoph Wölper ◽  
Constantin G. Daniliuc ◽  
...  
Keyword(s):  
Solid State ◽  
Theoretical Analysis ◽  
Quantum Yields ◽  
Structure Property ◽  
Aggregation Induced Emission ◽  
Π Interactions ◽  
Fluorescence Quantum Yields ◽  
Structure Property Relationships ◽  
Solid State Structures

The evolution of the fluorescence quantum yields was correlated with the increase of C–H⋯π and the decrease of π⋯π interactions in the solid state.

scholarly journals Stimuli-Responsive Phase Change Materials: Optical and Optoelectronic Applications

Materials ◽  
2021 ◽  
Vol 14 (12) ◽  
pp. 3396
Author(s):  
Irene Vassalini ◽  
Ivano Alessandri ◽  
Domenico de Ceglia
Keyword(s):  
Optical Properties ◽  
Solid State ◽  
Phase Change ◽  
Vanadium Dioxide ◽  
Phase Change Materials ◽  
Optoelectronic Devices ◽  
Information Storage ◽  
Stimuli Responsive ◽  
Responsive Materials ◽  
Solid State Devices

Stimuli-responsive materials offer a large variety of possibilities in fabrication of solid- state devices. Phase change materials (PCMs) undergo rapid and drastic changes of their optical properties upon switching from one crystallographic phase to another one. This peculiarity makes PCMs ideal candidates for a number of applications including sensors, active displays, photonic volatile and non-volatile memories for information storage and computer science and optoelectronic devices. This review analyzes different examples of PCMs, in particular germanium–antimonium tellurides and vanadium dioxide (VO2) and their applications in the above-mentioned fields, with a detailed discussion on potential, limitations and challenges.

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