|
|
|
| |
World's one of the largest Research
Career Network |
|
|
|
Benefits |
- Academic & Industry jobs
- Project funding
- Visiting faculty positions
- Visiting scientist positions
- Invited talks
- and more...
|
|
|
|
|
|
|
|
Register FREE
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Journal of Spectroscopy and Dynamics 2012, 2: 12
|
|
|
Research Article
|
|
|
|
|
|
|
Raman, SERS and theoretical study of (5a,6a)-7,8-didehydro-4,5-epoxy-3-methoxy-17-methylmorphinan-6-ol, codeine
|
|
|
|
Guillermo Diaz Fleming, Ursula Martínez Ortiz
|
|
|
|
|
|
|
|
Molecular and Atomic Spectroscopy Laboratory, Department of Chemistry, Faculty of Sciences, University of Playa Ancha, Valparaiso, Casilla 34-V, Chile
|
|
|
|
|
|
|
|
Abstract |
|
|
|
Raman and Surface Enhanced Raman Scattering (SERS) spectra of (5a,6a)-7,8-didehydro-4,5-epoxy-3-methoxy-17-methylmorphinan-6-ol, codeine, have been recorded . Density Functional Theory with the B3LYP functional was used for the optimizations of the ground state geometries and simulation of Raman and SERS vibrational spectra of this molecule. Bands of the vibrational spectra were assigned in detail. The comparison of SERS spectra obtained by using colloidal silver nanoparticles, with the corresponding Raman spectrum reveals enhancement and shifts in bands, providing a partial charge transfer mechanism in the SERS effect, allowing to obtain information about the orientation of codeine on the nm-sized metal structures.
|
|
|
|
|
|
|
Keywords |
|
|
|
Codeine; Raman; SERS; DFT calculations
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|