High pressure effect on the intramolecular electron transfer process

He, Liming; Li, Hong; Fan, Jiufeng; Li, Shayu; Gan, Quan; Zhang, Guoqi; Zhang, Baowen; Li, Yang; Yang, Guoqiang

doi:10.1016/s0009-2614(03)01335-6

Cited by 10 publications

(1 citation statement)

References 14 publications

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“…This method might be applied to study complicated photoprocesses proceeding under intermolecular interactions. For instance, there are several samples such as the transfer or exchange energy between unbound compounds (anthracene−naphthalene complex), the spectral-luminescent properties of molecules strong dependent on environment behavior (tryptophan in different solvents), or influence of high temperature and/or high pressure on absorption and emission spectra …”

Section: Introductionmentioning

confidence: 99%

Absorption Spectra of Estradiol and Tryptophan Constructed by the Statistical and Elongation Methods

2009

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The statistical quantum chemical/molecular dynamical method is developed and employed to reproduce optical spectra. This technique includes quantum-mechanical calculations on energy states and photophysical properties of molecular conformers obtained during molecular dynamical simulation. Polycyclic organic molecule estradiol surrounded by solvent particles and protein structure including tryptophan fragment under thermodynamical conditions are considered. A wide absorption spectrum over several excited electronic states of estradiol is constructed. First longwave absorption band of tryptophan-cage mini protein is built involving the elongation method. These statistical spectra reflect the main features of the corresponding experimental ones.

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Section: Introductionmentioning

confidence: 99%

Absorption Spectra of Estradiol and Tryptophan Constructed by the Statistical and Elongation Methods

2009

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Pressure‐Induced Wide‐Range Reversible Emission Shift of Triphenylamine‐Substituted Anthracene via Hybridized Local and Charge Transfer (HLCT) Excited State

et al. 2017

Advanced Optical Materials

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4‐(Anthracen‐9‐yl)‐N,N‐diphenylaniline (TPA‐AN) is a typical molecule belonging to a donor–acceptor system. Here, the ordered crystal and the powder of TPA‐AN are used for high‐pressure Raman and fluorescence experiments, and their spectroscopic features under the shearing force of grinding and the hydrostatic pressure applied by a diamond anvil cell (DAC) are compared. The mechanochromism of TPA‐AN is discussed in detail based on the analysis of its single‐crystal structure and pressure‐driven spectral changes. During the DAC compression process, the TPA‐AN crystal shows an obvious emission band shift (from 476 to 600 nm) along with a new intramolecular charge transfer state that is separated from the hybridized local and charge transfer excited state and extremely sensitive to external force. Once the pressure is relieved, the Raman and fluorescence spectra both entirely self‐recover without a secondary force. To the authors' knowledge, TPA‐AN crystal is one of the largest emission shift organic mechanochromic fluorescent materials among reported publications. The reversible mechanochromic property of TPA‐AN for a wide‐range emission shift implies a great application potential as smart stimuli‐responsive layer in the fields of sensing, organic light‐emitting diode displays, and data storage.

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Enhanced Sensitivity and Piezochromic Contrast through Single‐Direction Extension of Molecular Structure

Gao

Wang

Liu

et al. 2016

Chemistry A European J

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Two piezochromic materials containing phenanthro[9,10-d]imidazole and tetraphenylethylene (M1 and M2) were developed. A supra-amplification piezochromic effect originating from their various long-to-short axis ratios was discovered in high-pressure experiments. Based on the linear relationship between applied pressure and emission-peak wavelength during pressurizing and depressurizing cycles, quantitative sensitivity for piezochromism could be denoted. M2 displayed higher piezochromic contrast (102 nm) and better sensitivity (11.19 nm GPa ) than M1 (69 nm and 6.12 nm GPa ), which helps to develop a more comprehensive general strategy to evaluate pressure-responsive performance.

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High pressure effect on the intramolecular electron transfer process

Cited by 10 publications

References 14 publications

Absorption Spectra of Estradiol and Tryptophan Constructed by the Statistical and Elongation Methods

Absorption Spectra of Estradiol and Tryptophan Constructed by the Statistical and Elongation Methods

Pressure‐Induced Wide‐Range Reversible Emission Shift of Triphenylamine‐Substituted Anthracene via Hybridized Local and Charge Transfer (HLCT) Excited State

Enhanced Sensitivity and Piezochromic Contrast through Single‐Direction Extension of Molecular Structure

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