Molecular properties of bare and microhydrated vitamin B5-calcium complexes was written by Corinti, Davide;Chiavarino, Barbara;Scuderi, Debora;Fraschetti, Caterina;Filippi, Antonello;Fornarini, Simonetta;Crestoni, Maria Elisa. And the article was included in International Journal of Molecular Sciences in 2021.Related Products of 137-08-6 This article mentions the following:
Pantothenic acid, also called vitamin B5, is an essential nutrient involved in several metabolic pathways. It shows a characteristic preference for interacting with Ca(II) ions, which are abundant in the extracellular media and act as secondary mediators in the activation of numerous biol. functions. The bare deprotonated form of pantothenic acid, [panto-H]–, its complex with Ca(II) ion, [Ca(panto-H)]+, and singly charged micro-hydrated calcium pantothenate [Ca(panto-H)(H2O)]+ adduct have been obtained in the gas phase by electrospray ionization and assayed by mass spectrometry and IR multiple photon dissociation spectroscopy in the fingerprint spectral range. Quantum chem. calculations at the B3LYP(-D3) and MP2 levels of theory were performed to simulate geometries, thermochem. data, and linear absorption spectra of low-lying isomers, allowing us to assign the exptl. absorptions to particular structural motifs. Pantothenate was found to exist in the gas phase as a single isomeric form showing deprotonation on the carboxylic moiety. On the contrary, free and monohydrated calcium complexes of deprotonated pantothenic acid both present at least two isomers participating in the gas-phase population, sharing the deprotonation of pantothenate on the carboxylic group and either a fourfold or fivefold coordination with calcium, thus justifying the strong affinity of pantothenate for the metal. In the experiment, the researchers used many compounds, for example, Calcium (R)-3-(2,4-dihydroxy-3,3-dimethylbutanamido)propanoate (cas: 137-08-6Related Products of 137-08-6).
Calcium (R)-3-(2,4-dihydroxy-3,3-dimethylbutanamido)propanoate (cas: 137-08-6) belongs to alcohols. Alcohols are weak acids. The most acidic simple alcohols (methanol and ethanol) are about as acidic as water, and most other alcohols are somewhat less acidic. Under carefully controlled conditions, simple alcohols can undergo intermolecular dehydration to give ethers. This reaction is effective only with methanol, ethanol, and other simple primary alcohols.Related Products of 137-08-6
Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts