The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《The infrared spectrum of the formate ion》. Authors are Schutte, C. J. H.; Buijs, K..The article about the compound:1-Iodo-2-methylbutanecas:616-14-8,SMILESS:CCC(CI)C).Computed Properties of C5H11I. Through the article, more information about this compound (cas:616-14-8) is conveyed.
The infrared spectra of anhydrous Ca(HCO2)2, Sr(HCO2)2, Ba(HCO2)2, and Pb(HCO2)2 show clearly the doubling of the fundamental bands of the formate ion owing to the existence of non-equivalent ions in the lattice. A new tetragonal phase of Ca(HCO2)2 precipitate when an organic solvent is added to an aqueous solution of Ca(HCO2)2. The new β phase belongs to space group D44-P412121, α = 9.46 A., c = 6.77 A., with 4 mols. per unit cell. The absorption bands for the β phase are single, in accordance with the crystallographic symmetry.
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Reference:
Thiomorpholine – Wikipedia,
Thiomorpholine | C4H9NS – PubChem