|
|
| Type |
Poster Presentation |
| Area |
Physical Chemistry |
| Room No. |
Grand Ballroom |
| Time |
10월 19일 (금요일) 11:00~12:30 |
| Code |
PHYS.P-198 |
| Subject |
Surface-enhanced Raman spectroscopy and density functional theory on riboflavin and related molecules adsorbed on colloidal silver particles
|
| Authors |
Minju Yun, Han Gook Cho1,*, Byeong-Seo Cheong1,*
Department of Chemistry, Incheon National University, Korea
1Department of Chemistry, Incheon National University, Korea
|
| Abstract |
A combined surface-enhanced Raman spectroscopy (SERS) and density functional theory (DFT) study on riboflavin and related molecules adsorbed on colloidal silver particles has been conducted to investigate the spectral vibrations among flavin compounds and the adsorption geometry on the metal surface. The SERS spectra were measured at different pHs to gain information on the adsorption geometry as well as the pH-dependent spectral variation. The Raman spectra of the compounds in powder form were also obtained for comparison with the SERS spectra. DFT calculations were performed to assign the vibration modes of observed bands and to model the adsorption geometry of riboflavin on the silver surface. The interactions of adsorbates with metal nanoparticles and the adsorbate conformation were discussed based on the observed spectra and DFT results. |
| E-mail |
alswn0256@naver.com |
|
122nd General Meeting of the KCS