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Título: Rotational spectrum of tryptophan
Autor: Sanz, Maria Eugenia
Cabezas, Carlos
Mata, Santiago
Alonso Hernández, José Luis
Año del Documento: 2014
Documento Fuente: The Journal of Chemical Physics 140, 204308 (2014)
Resumen: The rotational spectrum of the natural amino acid tryptophan has been observed for the first time using a combination of laser ablation, molecular beams, and Fourier transform microwave spectroscopy. Independent analysis of the rotational spectra of individual conformers has conducted to a definitive identification of two different conformers of tryptophan, with one of the observed conformers never reported before. The analysis of the 14N nuclear quadrupole coupling constants is of particular significance since it allows discrimination between structures, thus providing structural information on the orientation of the amino group. Both observed conformers are stabilized by an O–H · · ·N hydrogen bond in the side chain and a N–H · · · π interaction forming a chain that reinforce the strength of hydrogen bonds through cooperative effects.
Revisión por Pares: SI
DOI: 10.1063/1.4876001
Propietario de los Derechos: 2014 AIP Publishing LLC
Idioma: eng
URI: http://uvadoc.uva.es/handle/10324/22656
Derechos: info:eu-repo/semantics/restrictedAccess
Aparece en las colecciones:DEP63 - Artículos de revista

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