Exploring the Conformational Space of Cysteine by Matrix Isolation Spectroscopy Combined with Near-Infrared Laser Induced Conformational Change
Citations Over TimeTop 15% of 2014 papers
Abstract
Six conformers of α-cysteine were identified by matrix isolation IR spectroscopy combined with NIR laser irradiation. Five of these conformers are identical with the five out of six conformers that have recently been identified by microwave spectroscopy. The sixth conformer observed in the present study is a short-lived conformer, which decays by H-atom tunneling; its half-life in a 12 K N2 matrix is (1.1 ± 0.5) × 10(3) s. This study proves that matrix isolation IR spectroscopy combined with NIR laser irradiation is a suitable method to identify conformers of a complex system for which computations predict several dozens of conformers, and that the reliability of this method for conformational assignment is comparable to that of microwave spectroscopy.
Related Papers
- → Matrix Isolation Studies of Group IV Oxides. II. Infrared Spectra and Structures of GeO, Ge2O2, Ge3O3, and Ge4O4(1970)73 cited
- → Matrix-isolation infrared spectroscopy of 2,3-, 2,4-, 2,5- and 3,4-difluorobenzaldehydes(2011)7 cited
- → Infrared Spectroscopy at Sub-Ambient Temperatures: III. Molecules and Molecular Fragments within Matrices(1969)13 cited
- → Interaction of MnO3F with HF and HCl: Matrix‐isolation infrared spectral studies. The vibrational spectrum of MnO3Cl(1978)11 cited
- → Reactions of molybdenum and tungsten atoms with nitrous oxide in excess argon: A combined matrix infrared spectroscopic and theoretical study(2010)2 cited