Understanding the intramolecular vibrational energy transfer and structural dynamics of anionic ligands in a photo-catalytic CO2 reduction catalyst

2019 ◽  
Vol 21 (41) ◽  
pp. 23026-23035 ◽  
Author(s):  
Qianchen Liu ◽  
Yutong Zhang ◽  
Qi Zhang ◽  
Qianshun Wei ◽  
Dexia Zhou ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Structural Dynamics ◽  
Vibrational Energy ◽  
Co2 Reduction ◽  
Catalytic Process ◽  
Vibrational Energy Transfer ◽  
Energy Redistribution ◽  
Intramolecular Vibrational Energy Redistribution ◽  
Anionic Ligands

The knowledge of intramolecular vibrational energy redistribution (IVR) and structural dynamics of rhenium photo-catalysts is essential for understanding the mechanism of the photo-catalytic process of CO2 reduction.

scholarly journals Role of electron in intramolecular vibrational energy redistribution: a simulation of time- and frequency-resolved CARS spectrum

RSC Advances ◽  
2019 ◽  
Vol 9 (45) ◽  
pp. 26030-26036 ◽  
Author(s):  
Zanhao Wang ◽  
Honglin Wu ◽  
Xiaosong Liu ◽  
Yunfei Song ◽  
Yanqiang Yang
Keyword(s):  
Energy Transfer ◽  
Vibrational Energy ◽  
Energy Transfer Efficiency ◽  
Transfer Efficiency ◽  
Vibrational Energy Transfer ◽  
Energy Redistribution ◽  
Intramolecular Vibrational Energy Redistribution ◽  
Mediator Role

The electron plays a mediator role in the IVR process and significantly increases the vibrational energy transfer efficiency.

scholarly journals Direct observation of structural dynamics upon photo-excitation in a spin crossover crystal with femtosecond electron diffraction

2019 ◽  
Vol 205 ◽  
pp. 07005
Author(s):  
Yifeng Jiang ◽  
Lai Chung Liu ◽  
Henrike M. Müller-Werkmeister ◽  
Cheng Lu ◽  
Dongfang Zhang ◽  
...  
Keyword(s):  
Electron Diffraction ◽  
Structural Dynamics ◽  
Spin Crossover ◽  
Vibrational Energy ◽  
Intersystem Crossing ◽  
Structural Reorganization ◽  
Energy Redistribution ◽  
Intramolecular Vibrational Energy Redistribution ◽  
Femtosecond Electron Diffraction ◽  
Ligand Bond

Photoinduced spin transitions are studied by femtosecond electron diffraction to understand ultrafast structural dynamics associated with intersystem crossing. The results indicate the structural reorganization occurs within 2.3 ps, as the metal-ligand bond distribution narrows during intramolecular vibrational energy redistribution.

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