The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《The infrared absorption spectra of some amide and dipeptide metal chelates》. Authors are Rosenberg, Andreas.The article about the compound:H-Leu-NH2.HClcas:10466-61-2,SMILESS:N[C@@H](CC(C)C)C(N)=O.[H]Cl).Recommanded Product: 10466-61-2. Through the article, more information about this compound (cas:10466-61-2) is conveyed.
The glycylglycino, leucinamido, leucinemethylamido, alanylglycino, and leucylglycino hydrate salts of Cu, Ni, and Zn were prepared and their infrared spectra examined A detailed interpretation of the spectra shows a shift in the resonance equilibrium of the peptide group. N-H stretch frequencies are shifted towards lower wave numbers while the C:O bonds shift in the opposite direction.
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