Linear Bimetallic Alkynylplatinum(II) Terpyridyl Complexes Bearing p-Phenylene Ethynylene Oligomers: Synthesis, Characterization, Aggregation, and Photophysical Properties

2014 ◽  
Vol 33 (11) ◽  
pp. 2738-2746 ◽  
Author(s):  
Peng Xu ◽  
Haotian Wu ◽  
Hongxing Jia ◽  
Shifan Ye ◽  
Pingwu Du
Keyword(s):  
Photophysical Properties ◽  
Phenylene Ethynylene

Naphthalimide-containing conjugated polyelectrolytes with different chain configurations

2019 ◽  
Vol 17 (10) ◽  
pp. 2635-2639 ◽  
Author(s):  
Yu Chen ◽  
Ying Tan ◽  
Chunyan Tan ◽  
Yunpeng Lu ◽  
Yuzong Chen ◽  
...  
Keyword(s):  
Polymer Chain ◽  
Photophysical Properties ◽  
Phenylene Ethynylene ◽  
Conjugated Polyelectrolytes

Different polymer chain configurations along the main chains of poly(naphthalimide and phenylene ethynylene)s lead to dramatic differences in polymer conformations and photophysical properties.

Photophysical Properties of Oligo­(phenylene ethynylene) Iridium(III) Complexes Functionalized with Metal-Anchoring Groups

2016 ◽  
Vol 2016 (12) ◽  
pp. 1851-1859 ◽  
Author(s):  
Julia Ponce ◽  
Juan Aragó ◽  
Ignacio Vayá ◽  
Jorge Gómez Magenti ◽  
Sergio Tatay ◽  
...  
Keyword(s):  
Photophysical Properties ◽  
Phenylene Ethynylene ◽  
Anchoring Groups

Mixed Alkyl- and Alkoxy-Substituted Poly[(phenylene ethynylene)-alt-(phenylene vinylene)] Hybrid Polymers: Synthesis and Photophysical Properties

2004 ◽  
Vol 205 (15) ◽  
pp. 2105-2115 ◽  
Author(s):  
Daniel Ayuk Mbi Egbe ◽  
Stephan Sell ◽  
Christoph Ulbricht ◽  
Eckhard Birckner ◽  
Ulrich-Walter Grummt
Keyword(s):  
Photophysical Properties ◽  
Phenylene Vinylene ◽  
Phenylene Ethynylene ◽  
Hybrid Polymers

Morphology and Photophysical Properties of Electrospun Light-Emitting Polystyrene/Poly(p-phenylene ethynylene) Fibers

2008 ◽  
Vol 293 (12) ◽  
pp. 952-963 ◽  
Author(s):  
Sutheerat Changsarn ◽  
James D. Mendez ◽  
Christoph Weder ◽  
Pitt Supaphol
Keyword(s):  
Photophysical Properties ◽  
Phenylene Ethynylene ◽  
Light Emitting

Solvent Dependence of Structural Dynamics and Spin-flip Processes in 3,4,5-tri(9H-carbazole-9-yl)benzonitrile (ortho-3CzBN)

2020 ◽  
Author(s):  
Masaki Saigo ◽  
Kiyoshi Miyata ◽  
Hajime Nakanotani ◽  
Chihaya Adachi ◽  
Ken Onda
Keyword(s):  
Dft Calculations ◽  
Excited States ◽  
Structural Changes ◽  
Photophysical Properties ◽  
Delayed Fluorescence ◽  
Time Resolved ◽  
Thermally Activated Delayed Fluorescence ◽  
Thermally Activated ◽  
Solvent Dependence ◽  
Acetonitrile Solutions

We have investigated the solvent-dependence of structural changes along with intersystem crossing of a thermally activated delayed fluorescence (TADF) molecule, 3,4,5-tri(9H-carbazole-9-yl)benzonitrile (o-3CzBN), in toluene, tetrahydrofuran, and acetonitrile solutions using time-resolved infrared (TR-IR) spectroscopy and DFT calculations. We found that the geometries of the S1 and T1 states are very similar in all solvents though the photophysical properties mostly depend on the solvent. In addition, the time-dependent DFT calculations based on these geometries suggested that the thermally activated delayed fluorescence process of o-3CzBN is governed more by the higher-lying excited states than by the structural changes in the excited states.<br>

Theoretical Framework of 1,3-Thiazolium-5-Thiolates Mesoionic Compounds: Exploring the Nature of Photophysical Properties and Molecular Nonlinearity

2020 ◽  
Author(s):  
Zeyu Liu ◽  
Shugui Hua ◽  
Tian Lu ◽  
Ziqi Tian
Keyword(s):  
Optical Properties ◽  
Rational Design ◽  
Rayleigh Scattering ◽  
Function Analysis ◽  
Theoretical Calculations ◽  
Photophysical Properties ◽  
Optical Nonlinearity ◽  
Nonlinear Properties ◽  
Photoelectric Performance ◽  
Wave Function Analysis

Inspired by a previous experimental study on the first-order hyperpolarizabilities of 1,3-thiazolium-5-thiolates mesoionic compounds using Hyper-Rayleigh scattering technique, we theoretically investigated the UV-Vis absorption spectra and every order polarizabilities of these mesoionic molecules. Based on the fact that the photophysical and nonlinear properties observed in the experiment can be perfectly replicated, our theoretical calculations explored the essential characteristics of the optical properties of the mesoionic compounds with different electron-donating groups at the level of electronic structures through various wave function analysis methods. The influence of the electron-donating ability of the donor on the optical properties of the molecules and the contribution of the mesoionic ring moiety to their optical nonlinearity are clarified, which have not been reported by any research so far. This work will help people understand the nature of optical properties of mesoionic-based molecules and provide guidance for the rational design of molecules with excellent photoelectric performance in the future.

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