{"id":10331,"date":"2022-10-20T04:13:01","date_gmt":"2022-10-19T20:13:01","guid":{"rendered":"https:\/\/www.pyrazoles-derivatives.com\/?p=10331"},"modified":"2022-10-20T04:13:01","modified_gmt":"2022-10-19T20:13:01","slug":"oh-seungmins-team-published-research-in-journal-of-physical-chemistry-b-in-2020-cas-20154-03-4","status":"publish","type":"post","link":"https:\/\/www.pyrazoles-derivatives.com\/?p=10331","title":{"rendered":"Oh, Seungmin’s team published research in Journal of Physical Chemistry B in 2020 | CAS: 20154-03-4"},"content":{"rendered":"

\u300aCation-Anion and Anion-CO2 Interactions in Triethyl(octyl)phosphonium Ionic Liquids with Aprotic Heterocyclic Anions (AHAs)\u300b was published in Journal of Physical Chemistry B in 2020. These research results belong to Oh, Seungmin; Morales-Collazo, Oscar; Keller, Austin N.; Brennecke, Joan F.. Quality Control of 3-(Trifluoromethyl)-1H-pyrazole<\/a> The article mentions the following:<\/p>\n

Ionic liquids with aprotic heterocyclic anions (AHAs) have been developed for postcombustion CO2 capture applications. The anions of AHA ILs play a significant role in tuning anion-CO2 complexation. In addition, AHAs are able to trigger the abstraction of acidic protons located at the \u03b1 position of phosphonium cations by forming hydrogen bonds between cations and anions, eventually leading to cation-driven CO2 complexation. Here we investigate the role of the anion in cation-anion hydrogen bonding and ylide formation. Using CO2 uptake measurements, 31P NMR, attenuated total reflection-Fourier transform IR (ATR-FTIR), deuterium exchange equilibrium and rates, two-dimensional nuclear Overhauser effect spectroscopy (2D NOESY), and d. functional theory calculations, we show that the key is the proximity of the neg. charged nitrogen atoms on the anion to the \u03b1 protons, which is governed not just by anion basicity but by sterics. Thus, we show that triethyl(octyl)phosphonium 3-methyl-5-trifluoromethylpyrazolide is much more effective in hydrogen-bonding with and deprotonating the cation than the equivalent [P2228] ILs with more basic 2-cyanopyrrolide and 3-trifluoromethylpyrazolide anions. In the part of experimental materials, we found many familiar compounds, such as 3-(Trifluoromethyl)-1H-pyrazole(cas: 20154-03-4Quality Control of 3-(Trifluoromethyl)-1H-pyrazole<\/a>)<\/p>\n

3-(Trifluoromethyl)-1H-pyrazole(cas: 20154-03-4) belongs to pyrazoles. The application of pyrazole derivatives in the development of anticancer agents has been thoroughly investigated and verified. Moreover, the medicinal features of a number of natural products incorporating pyrazole moiety such as pyrazofurin, pyrazofurin B, pyrazole-3(5)-carboxylic acid and 4-methylpyrazole-3(5)-carboxylic acid have been reported.Quality Control of 3-(Trifluoromethyl)-1H-pyrazole<\/a><\/p>\n

Referemce:
Pyrazole – Wikipedia<\/a>,
Pyrazoles – an overview | ScienceDirect Topics<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

3-(Trifluoromethyl)-1H-pyrazole(cas: 20154-03-4) belongs to pyrazoles. The application of pyrazole derivatives in the development of anticancer agents has been thoroughly investigated and verified. Moreover, the medicinal features of a number of natural products incorporating pyrazole moiety such as pyrazofurin, pyrazofurin B, pyrazole-3(5)-carboxylic acid and 4-methylpyrazole-3(5)-carboxylic acid have been reported.Quality Control of 3-(Trifluoromethyl)-1H-pyrazole<\/a><\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[205,131],"tags":[128],"class_list":["post-10331","post","type-post","status-publish","format-standard","hentry","category-20154-03-4","category-pyrazoles-derivatives","tag-100-200"],"yoast_head":"\nOh, Seungmin's team published research in Journal of Physical Chemistry B in 2020 | CAS: 20154-03-4 | pyrazoles-derivatives<\/title>\n<meta name=\"description\" content=\"\u300aCation-Anion and Anion-CO2 Interactions in Triethyl(octyl)phosphonium Ionic Liquids with Aprotic Heterocyclic Anions (AHAs)\u300b was published in Journal of Physical Chemistry B in 2020. 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