Abstract
Inelastic incoherent neutron scattering (IINS) spectra were obtained at 10 K for normal and deuterated l-cysteine. Raman and infrared spectra were also recorded. Geometry of l-cysteine molecule was optimized for the zwitterion form using ab initio HF/6-31G* level. The theoretical frequencies of normal and d4-l-cysteine were compared with INS, Raman and IR spectra. Normal coordinate analysis and band assignments based on ab initio calculations and experimental data are presented.
| Original language | English |
|---|---|
| Pages (from-to) | 2474-2481 |
| Number of pages | 8 |
| Journal | Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy |
| Volume | 61 |
| Issue number | 11-12 |
| DOIs | |
| State | Published - Sep 2005 |
| Externally published | Yes |
Funding
Work supported in part by the Centre of Excellence IDRANAP under Contract with European Commission ICA1-CT-2000-70023, and by the Romanian Ministry of Education and Research.
Keywords
- Ab initio calculations
- Amino acids
- Inelastic neutron scattering
- Infrared spectrum
- L-Cysteine
- Raman spectrum