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Histidine is an important natural amino acid, involved in many relevant biological processes, which, because of its physical properties, proved difficult to characterize experimentally in its neutral form. In this work, neutral histidine has been generated in the gas phase by laser ablation of solid samples and its NεH tautomeric form unraveled through its rotational spectrum. The quadrupole hyperfine...
Gib mir fünf! Alle fünf Tautomere und Konformere von Cytosin wurden durch Laserablations‐Molekularstrahl‐Mikrowellenspektroskopie in der Gasphase charakterisiert. Basierend auf der Hyperfeinstruktur der drei 14N‐Kerne konnten die Spektren eindeutig zugeordnet werden (siehe Bild; N blau, O rot). Die relativen Energien der identifizierten Spezies wurden aus den relativen Intensitäten der Spektren bestimmt.
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