The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《CH2 rocking vibrations of polyethylene glycols》. Authors are Kuroda, Yoko; Kubo, Masaji.The article about the compound:H-Leu-NH2.HClcas:10466-61-2,SMILESS:N[C@@H](CC(C)C)C(N)=O.[H]Cl).Category: chiral-catalyst. Through the article, more information about this compound (cas:10466-61-2) is conveyed.
Measurements were made of the infrared absorptions of ethylene glycol and polyethylene glycols (from a dimer to a heptamer) in liquid state. These chain mols. take a more or less irregular form resulting from the trans and gauche min. of the internal rotation about single bonds. Ethylene glycol shows only 2 absorption peaks in the wave number range of CH2 rocking modes. A plausible explanation is presented based on the formation of intramol. H bonds.
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