Optical absorptions of aliphatic amino acids in the far ultraviolet
β Scribed by T. Inagaki
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 1973
- Tongue
- English
- Weight
- 521 KB
- Volume
- 12
- Category
- Article
- ISSN
- 0006-3525
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β¦ Synopsis
Abstract
The far ultraviolet absorptions of aliphatic amino acids such as glycine, alanine, aminobutyric acid, valine, and leucine were measured with their solid thin films down to 120 nm. Four absorption bands arising from the carboxyl group were observed in the 200β140 nm region. It was found that the band positions and intensities vary systematically according to the number of carbon atoms in the aliphatic side chain. This result may be interpreted as a phenomenon similar to the hyperβand hypochromisms of aliphatic homopolypeptides in far ultraviolet region.
π SIMILAR VOLUMES
## Abstract The circular dichroism and absorption for five alkyl amino acids as zwitterions has now been measured to 160 nm. Two bands are found, the __n__Ο\* at long wavelengths and ΟΟ\* at short wavelengths. In an effort to extract conformal information from the circular dichroism measurmenths, t
Carboxylate and guanidinium groups of amino acids have been studied by ultraviolet resonance Raman (UVRR) spectroscopy. On near-resonant excitation (192 nm) into the allowed n-n\* transition of the carboxylate chromophore, the vibrational spectrum of aspartate displays only one band originating from