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With a decrease in the basicity of L=CO (via C), N<jats:sub>2<\/jats:sub>O, and CO (via O), only proton monosolvates are formed, which approach L\u2212H<jats:sup>+<\/jats:sup>\u2212An<jats:sup>\u2212<\/jats:sup> species with convergence of the strengths of bridged H\u2010bonds. The molecules with the weakest basicity, such as CO<jats:sub>2<\/jats:sub> and weaker, when attached to the proton, cannot break the bridged H\u2010bond of the polymeric superacid, and the interaction stops at stage of physical adsorption. It is shown here that under the conditions of acid monomerization, it is possible to protonate such weak bases as CO<jats:sub>2<\/jats:sub>, N<jats:sub>2<\/jats:sub>, and Xe.<\/jats:p>","DOI":"10.1002\/anie.201704645","type":"journal-article","created":{"date-parts":[[2018,2,21]],"date-time":"2018-02-21T16:56:46Z","timestamp":1519232206000},"page":"4516-4520","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":16,"title":["Features of Protonation of the Simplest Weakly Basic Molecules, SO<sub>2<\/sub>, CO, N<sub>2<\/sub>O, CO<sub>2<\/sub>, and Others by Solid Carborane Superacids"],"prefix":"10.1002","volume":"57","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6596-9590","authenticated-orcid":false,"given":"Evgenii S.","family":"Stoyanov","sequence":"first","affiliation":[{"name":"Vorozhtsov Institute of Organic Chemistry Siberian Branch of Russian Academy of Sciences  Novosibirsk 630090 Russia"},{"name":"Department of Natural 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