세미나 Seminars

2018.09.20 09:52

9월27일(목) 대학원세미나 박승민 교수(경희대학교 화학과)

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초청강사 박승민 교수
소속 경희대학교 화학과
일시 2018년 9월 27일(목) 오후 5시
장소 아산이학관 331호

Infrared photodissociation of cluster ions: towards control of chemical reactions

 

  Van der Waals clusters containing an aromatic compound and solvent molecules permit us to investigate “weak” intermolecular interactions which play a key role in a great variety of physical, chemical, and biological processes. Most of all, hydrated clusters have attracted extensive research interest as hydrogen bonding is certainly one of the most fundamental interactions in the solvation processes.

  Recently, infrared (IR) spectroscopic studies of such clusters in gas phase combined with ab initio calculations proved to be highly powerful to provide important information for a clear understanding of geometric structures, intermolecular interactions, conformational dynamics, and proton transfer processes in solvated molecular systems. In this regard, we have explored the branching ratio and mode selectivity in IR photodissociation of hydrogen-bonded ternary cluster ions by adopting tandem mass spectrometry with an ultimate goal of unimolecular reaction control. Here, we present experimental results on IR photodissociation dynamics of hydrated aniline cluster ions by exciting different vibrational modes such as free NH of aniline+, symmetric and anti-symmetric bonded NH of aniline+, free OH of water, symmetric and anti-symmetric bonded OH of water. 


20180927_대학원세미나_박승민 교수.pdf


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