9-Anthryl-capped DPP-based dyes: aryl spacing induced differential optical properties

2016 ◽  
Vol 4 (34) ◽  
pp. 8006-8013 ◽  
Author(s):  
Shian Ying ◽  
Mingshuai Chen ◽  
Zhongwei Liu ◽  
Kai Zhang ◽  
Yuyu Pan ◽  
...  
Keyword(s):  
Optical Properties ◽  
Fluorescence Properties ◽  
Molecular Aggregation ◽  
Aggregation Behaviors

The conjugation bridges of DPP derivatives could significantly tune and alter molecular aggregation behaviors and fluorescence properties.

New barbituric acid derivatives for data encryption and decryption based on the mechanochromic fluorescence effect

The Analyst ◽  
2020 ◽  
Vol 145 (15) ◽  
pp. 5325-5332
Author(s):  
Hanjun Zhang ◽  
Zhen Xu ◽  
Furong Tao ◽  
Yan Li ◽  
Yuezhi Cui ◽  
...  
Keyword(s):  
Optical Properties ◽  
Barbituric Acid ◽  
Data Encryption ◽  
Fluorescence Properties ◽  
Encryption And Decryption ◽  
Encryption Decryption ◽  
Barbituric Acid Derivatives ◽  
Fluorescence Effect

CB-Ph and CB-Me have similar color and fluorescence properties, while they exhibit specific differences under the same stimulus. Based on the unique optical properties of CB-Ph and CB-Me, a new data encryption–decryption technology is developed.

scholarly journals Controllable molecular aggregation and fluorescence properties of 1,3,4-oxadiazole derivatives

2015 ◽  
Vol 3 (44) ◽  
pp. 11681-11688 ◽  
Author(s):  
Haitao Wang ◽  
Fangyi Chen ◽  
Xiaoshi Jia ◽  
Huimin Liu ◽  
Xia Ran ◽  
...  
Keyword(s):  
Layered Structure ◽  
Fluorescence Properties ◽  
Molecular Aggregation ◽  
Two Dimensional ◽  
One Dimensional ◽  
Oxadiazole Derivatives

In H-aggregation, BOXD-6 adopts a linear conformation and forms a one-dimensional layered structure; in J-aggregation, it adopts a Z-shaped conformation and forms a more ordered two-dimensional layered structure.

Structure characterization and optical properties investigation of the four main components of the classical phenazinium dye Safranin O

The Analyst ◽  
2019 ◽  
Vol 144 (24) ◽  
pp. 7149-7156 ◽  
Author(s):  
Hong Wan ◽  
Hong Chen ◽  
Yueying Chu ◽  
Xiulian Ju ◽  
Haipeng Jiang
Keyword(s):  
Optical Properties ◽  
Structure Characterization ◽  
Fluorescence Properties ◽  
Main Components ◽  
Safranin O

The structures of the four main components in classical phenazinium dye safranin O were firstly identified, there was somewhat different in their absorbance properties and remarkably different in their fluorescence properties.

Temperature-Tuning of Optical Properties and Molecular Aggregation in AnE-PVstat Copolymer Solution

2018 ◽  
Vol 122 (7) ◽  
pp. 3965-3969 ◽  
Author(s):  
A. Saaidia ◽  
M. A. Saidani ◽  
E. Hleli ◽  
S. Alam ◽  
C. Ulbricht ◽  
...  
Keyword(s):  
Optical Properties ◽  
Molecular Aggregation ◽  
Copolymer Solution ◽  
Temperature Tuning

Study of Optical Properties and Molecular Aggregation of Conjugated Low Band Gap Copolymers: PTB7 and PTB7-Th

2015 ◽  
Vol 119 (43) ◽  
pp. 24643-24648 ◽  
Author(s):  
Fatima Bencheikh ◽  
David Duché ◽  
Carmen M. Ruiz ◽  
Jean-Jacques Simon ◽  
Ludovic Escoubas
Keyword(s):  
Optical Properties ◽  
Band Gap ◽  
Molecular Aggregation ◽  
Low Band Gap

Solvent effects on molecular aggregation of highly water-soluble phthalocyanines

2018 ◽  
Vol 22 (01n03) ◽  
pp. 102-111 ◽  
Author(s):  
Hiroaki Isago ◽  
Harumi Fujita
Keyword(s):  
Mixed Solvent ◽  
Driving Forces ◽  
Copper Ions ◽  
Magnetic Circular Dichroism ◽  
Solvent System ◽  
Water Soluble ◽  
Molecular Aggregation ◽  
Magnetic Circular Dichroism Spectroscopy ◽  
Aggregation Behaviors ◽  
Text Interaction

Molecular aggregation phenomena of a highly water-soluble, metal-free phthalocyanine, H[Formula: see text]Pc, and its copper complex, Cu(Pc); where Pc denotes tetrakis{(2[Formula: see text],6[Formula: see text]-dimethyl-4[Formula: see text]-sulfonic acid)phenoxy}phthalocyaninate) in water, ethanol, and their mixed solvent systems have been investigated by spectroscopic approach In both aqueous and ethanolic solutions, H[Formula: see text]Pc molecules aggregate in a slipped-cofacial manner, although very weakly in ethanol. On the other hand, Cu(Pc) molecules aggregate in a cofacial manner in water while aligning in a slipped-cofacial manner in ethanol. Magnetic circular dichroism spectroscopy was undertaken to investigate aggregation behaviors of Cu(Pc) in water and ethanol. Presence of 4-phenylpyridine in ethanol effectively inhibited aggregation of Cu(Pc) molecules, although little affected the spectra of the monomers. In a mixed solvent system, where water/ethanol [Formula: see text] 10/90 (v/v), Cu(Pc) is free from aggregation up to almost 10[Formula: see text] M. Driving forces of this molecular aggregation are discussed on the basis of [Formula: see text]–[Formula: see text] interaction and coordination chemistry involving copper ions.

Comparison of optical properties of chromophoric dissolved organic matter (CDOM) in alpine lakes above or below the tree line: insights into sources of CDOM

2015 ◽  
Vol 14 (5) ◽  
pp. 1047-1062 ◽  
Author(s):  
Yaling Su ◽  
Feizhou Chen ◽  
Zhengwen Liu
Keyword(s):  
Organic Matter ◽  
Optical Properties ◽  
Dissolved Organic Matter ◽  
Alpine Lakes ◽  
Fluorescence Properties ◽  
Chromophoric Dissolved Organic Matter ◽  
Tree Line ◽  
P Absorption

Absorption and fluorescence properties of CDOM in 15 alpine lakes were investigated to determine its source and composition. This work provides useful information regarding CDOM in above/below-tree-line alpine lakes.

Synthesis, Photochromic Properties of a Novel Unsymmetrical Hybrid Diarylethene Material with Benzene Unit

2013 ◽  
Vol 468 ◽  
pp. 71-74
Author(s):  
Hong Jing Jia ◽  
Jing Jing Liu ◽  
Shou Zhi Pu
Keyword(s):  
Optical Properties ◽  
Fluorescence Properties ◽  
Photochromic Properties ◽  
Fluorescence Switching ◽  
Hexane Solution

A new unsymmetrical photochromic diarylethene 1o, which is named 1-[2-methyl-5-(4-methoxyphenyl)-3-thienyl]-2-[2-methyl-5-(4-formyphenyl)-3-thienyl] perfluorocyclopentene, was synthesized. Its optical properties, including photochromic reactivity, kinetics and fluorescence properties were investigated in detail. The result indicated that the diarylethene underwent reversible photochromism, changing between colorless and blue in hexane solution and in PMMA, respectively. What is more, the kinetic experiments illustrated that the cyclization/cycloreversion process of this compound was determined to be the zeroth/first reaction. In addition, the results demonstrated that the diarylethene 1o had remarkable fluorescence switching properties.

The isomeric effect of mercaptobenzoic acids on the preparation and fluorescence properties of copper nanoclusters

2015 ◽  
Vol 51 (60) ◽  
pp. 11983-11986 ◽  
Author(s):  
Yi-Jyun Lin ◽  
Po-Cheng Chen ◽  
Zhiqin Yuan ◽  
Jia-Ying Ma ◽  
Huan-Tsung Chang
Keyword(s):  
Optical Properties ◽  
Copper Nitrate ◽  
Fluorescence Properties ◽  
Copper Nanoclusters ◽  
Isomeric Effect

Copper nanoclusters (Cu NCs) aggregates prepared from copper nitrate and mercaptobenzoic acid (MBA) isomers show differential optical properties.

Fluorescent Carbon Particles formed from Concentrated Glucose Solutions

MRS Advances ◽  
2019 ◽  
Vol 4 (2) ◽  
pp. 67-72
Author(s):  
Tomilola Obadiya ◽  
Harsh Uppala ◽  
David Sidebottom
Keyword(s):  
Optical Properties ◽  
Size Distribution ◽  
Fluorescence Properties ◽  
Carbon Nanodots ◽  
Particle Sizing ◽  
Remarkable Similarity ◽  
Low Concentration ◽  
Carbon Particles ◽  
Heat Treated ◽  
By Products

AbstractSimple glucose solutions were heat treated in an attempt to produce carbon nanodots (CNDTs) with a monodisperse size distribution using a bottom-up approach. Absorption and fluorescence properties of the heat-treated solutions display remarkable similarity to CNDTs reported in the literature. However, particle-sizing and AFM measurements indicate the increasing fluorescence is accompanied by the growth of particles that are larger than most CNDTs discussed in the literature (a concentrated population of monodisperse 30 nm particles and a low concentration of much larger, roughly 500 nm, particles). A dialysis study, shows these larger particles are not responsible for the bulk of the optical properties but, rather the optical properties likely stem from molecular by-products that accompany the heating and caramelization of the sugar.

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