scholarly journals Conjugates of tetraphenylethene and diketopyrrolopyrrole: tuning the emission properties with phenyl bridges

2014 ◽  
Vol 50 (63) ◽  
pp. 8747-8750 ◽  
Author(s):  
Xiao Yuan Shen ◽  
Yi Jia Wang ◽  
Haoke Zhang ◽  
Anjun Qin ◽  
Jing Zhi Sun ◽  
...  
Keyword(s):  
Solid State ◽  
Emission Properties

Bridging DPP (ACQ-gen) and TPE (AIE-gen) with phenyls derived TPE–ph–DPP conjugates displaying enhanced and red-shifted emission in the solid state.

scholarly journals Switching-On Fluorescence by Copper (II) and Basic Anions: A Case Study with a Pyrene-Functionalized Squaramide

Molecules ◽  
2021 ◽  
Vol 26 (5) ◽  
pp. 1301
Author(s):  
Giacomo Picci ◽  
Jessica Milia ◽  
Maria Carla Aragoni ◽  
Massimiliano Arca ◽  
Simon J. Coles ◽  
...  
Keyword(s):  
Solid State ◽  
Copper Complex ◽  
Receptor Complex ◽  
Emission Properties ◽  
Naked Eye ◽  
Intense Emission ◽  
Uv Lamp

The new symmetric acyclic N,N’-bis(1-pyrenyl) squaramide (H2L) functionalized with the pyrene moiety as a fluorogenic fragment has been designed and its ability to selectively detect specific anions and metals investigated. H2L selectively binds Cl− both in solution (DMSO 0.5% H2O and MeCN) and in the solid state, and allows to selectively detect Cu2+ in MeCN with the formation of a 2:1 metal-receptor complex, with a green intense emission appreciable by naked eye under the UV lamp. The H2L copper complex preserves its emission properties in the presence of Cl−. The addition of basic anions (OH−, CN−, and F−) up to 10 equivalents caused the deprotonation of the squaramide NHs and a dramatic change of the emission properties of the H2L copper complex.

scholarly journals Nitrile-Substituted 2-(Oxazolinyl)-Phenols: Minimalistic Excited-State Intramolecular Proton Transfer (ESIPT)-Based Fluorophores

2020 ◽  
Author(s):  
Dominik Göbel ◽  
Daniel Duvinage ◽  
Tim Stauch ◽  
Boris Nachtsheim
Keyword(s):  
Excited State ◽  
Solid State ◽  
Proton Transfer ◽  
Density Functional ◽  
Intramolecular Proton Transfer ◽  
Crystal Structure Analysis ◽  
Quantum Yields ◽  
Functional Theory ◽  
Emission Properties ◽  
Emission Enhancement

Herein, we present minimalistic single-benzene, excited-state intramolecular proton transfer (ESIPT) based fluorophores as powerful solid state emitters. The very simple synthesis gave access to all four regioisomers of nitrile-substituted 2(oxazolinyl)phenols (MW = 216.1). In respect of their emission properties they can be divided into aggregation-induced emission enhancement (AIEE) luminophores (1-CN and 2-CN), dual state emission (DSE) emitters (3-CN) and aggregation-caused quenching (ACQ) fluorophores (4‐CN). Remarkably, with compound 1-CN we discovered a minimalistic ESIPT based fluorophore with extremely high quantum yield in the solid state ΦF = 87.3% at λem = 491 nm. Furthermore, quantum yields in solution were determined up to ΦF = 63.0%, combined with Stokes shifts up till 11.300 cm–1. Temperature dependent emission mapping, crystal structure analysis and time-dependent density functional theory (TDDFT) calculations gave deep insight into the origin of the emission properties.<br>

Water-sulfate anion interplay in the evolution of solid state architectures and emission properties of Zn and Cd coordination networks with four azine ligands

2020 ◽  
Vol 286 ◽  
pp. 121312 ◽  
Author(s):  
Vasile Lozovan ◽  
Victor Ch. Kravtsov ◽  
Eduard B. Coropceanu ◽  
Anatolii V. Siminel ◽  
Olga V. Kulikova ◽  
...  
Keyword(s):  
Solid State ◽  
Coordination Networks ◽  
Sulfate Anion ◽  
Emission Properties

Synthesis and aggregation properties of a series of dumbbell polyhedral oligosilsesquioxane-perylene diimide triads

CrystEngComm ◽  
2015 ◽  
Vol 17 (6) ◽  
pp. 1453-1463 ◽  
Author(s):  
Ying Zhang ◽  
Liangliang Zhang ◽  
Heyuan Liu ◽  
Di Sun ◽  
Xiyou Li
Keyword(s):  
Solid State ◽  
Perylene Diimide ◽  
Emission Properties ◽  
Polyhedral Oligosilsesquioxane

A series of perylenetetracarboxylic diimide compounds connected with POSS groups have been synthesized and their solid state emission properties are investigated.

Solid-state thiolate-stabilized copper nanoclusters with ultrahigh photoluminescence quantum yield for white light-emitting devices

Nanoscale ◽  
2020 ◽  
Vol 12 (29) ◽  
pp. 15791-15799 ◽  
Author(s):  
Hao-Hua Deng ◽  
Qiong-Qiong Zhuang ◽  
Kai-Yuan Huang ◽  
Paramasivam Balasubramanian ◽  
Zhen Lin ◽  
...  
Keyword(s):  
Solid State ◽  
Quantum Yield ◽  
White Light ◽  
Copper Nanoclusters ◽  
Light Emitting ◽  
Aggregation Induced Emission ◽  
Emission Properties ◽  
Light Emitting Devices ◽  
Photoluminescence Quantum Yield

White-light-emitting devices are successfully fabricated by using solid-state copper nanoclusters as the sole phosphors with aggregation-induced emission properties.

Conformation twisting induced orientational disorder, polymorphism and solid-state emission properties of 1-(9-anthryl)-2-(1-naphthyl)ethylene

CrystEngComm ◽  
2012 ◽  
Vol 14 (23) ◽  
pp. 8286 ◽  
Author(s):  
Ye-Xin Li ◽  
Hong-Bo Zhou ◽  
Jin-Ling Miao ◽  
Guo-Xin Sun ◽  
Guo-Bao Li ◽  
...  
Keyword(s):  
Solid State ◽  
Orientational Disorder ◽  
Emission Properties

Cyano-substituted oligo(p-phenylene-vinylene)s having linear and branched octyloxy groups: control of aggregation and emitting properties via C8 alkyl chain difference

2021 ◽  
Author(s):  
Shotaro Hayashi
Keyword(s):  
Solid State ◽  
Alkyl Chain ◽  
Knoevenagel Condensation ◽  
Phenylene Vinylene ◽  
Emission Properties

We report control of solid-state emission properties of cyano-substituted oligo(p-phenylene-vinylene)s, COPVs, via C8 alkyl chain. COPVs having C8H17O-, n-octyloxy and 2-ethylhexyloxy, groups were synthesized by Knoevenagel condensation. The alkyl (alkoxy)...

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