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time resolved resonance Raman spectroscopy study of benzophenone derivates: investigation of the characteristics of excited triplet states

zhurx87 - Posted on 14 November 2014

Project Description: 

Nanosecond time-resolved resonance Raman spectroscopy (ns-TR3), ultrafast transient absorption spectroscopy (ns-TA, fs-TA) and density functional calculations will be performed to characterize the photo behaviors of 4, 4’-dimethoxybenzophenone (4, 4’-DMBP) in different solvents.The similarity energy level between n, π*and π, π* triplet states of 4, 4’-DMBP leads that it can interchange easily via different polarities of solvents. this two kinds of triplets can be directly observed by TR3 spectroscopy. solvent-dependent reactivity will also be studied in this project. DFT calculations will be involved to support the experimental data.

Researcher name: 
Ruixue Zhu
Researcher position: 
PhD candidate
Researcher department: 
Department of Chemistry
Researcher email: 
zhurx87@hotmail.com
Research Project Details
Project Duration: 
05/2012 to 05/2016
Project Significance: 
As the electron characteristic of lowest triplet excited state have been identified to be responsible for the differences in their photophysical and photochemical behaviors toward hydrogen donor and then responsible for the following reactions, so it is quite significant to figure out the nature of lowest triplet state by experiment and calculation methods.
Results Achieved: 
Y. Du, et al., Journal of Physical Chemistry A, 2009. 113: 3344-3352. Y. Du, et al., The Journal of Organic Chemistry, 2007. 72: 7148-7156. W. Li, et al., Journal of Raman Spectroscopy, 2012. 43: 774-780.
Remarks: 
We will use HPC to optimize the structure and calculate the energy of the lowest excited state,the Raman spectroscopy etc.