Adsorption Phenomena in the Systems Containing Macrocyclic Cavitand Cucurbit [7]urylстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 25 апреля 2017 г.
Аннотация:Adsorption phenomena at the mercury electrode/cucurbit[7]uryl aqueous solutions are studied by the measuring of the electrode differential capacitance C as a function of potential E. The data obtained showed that the adsorption potential region is abnormally wide (>2 V). Two segments are observed in the C,E-dependences, which relate to adsorption layers with different structure. The complicated adsorption layers forming in the studied systems can be explained by the structure of the cucurbit[7]uryl cavitand whose complexes with inorganic cations are formed by the cation binding by oxygen-containing groups of external
portals, rather than their inclusion into the cavitand’s inner cavity as in the case of cryptate formation.Adsorption parameters for adsorbate layers formed in the cucurbit[7]uryl + Na2SO4 solution are calculated.The data obtained evidence a rather strong potential dependence of the properties of the adsorption layers formed at the electrode/solution interface in the studied system.