Insoluble Acyclic Cucurbit[n]uril-Type Receptors Capture Iodine from the Vapor Phase.

Autor: Perera S; University of Maryland, Chemistry and Biochemistry, 8051 Regents Dr., 20742, College Park, UNITED STATES OF AMERICA., Shaurya A; University of Maryland, Chemistry and Biochemistry, 20742, College Park, UNITED STATES OF AMERICA., Zeppuhar A; University of Maryland, Chemistry and Biochemistry, 20742, College Park, UNITED STATES OF AMERICA., Chen F; University of Maryland, Chemistry and Biochemistry, 20742, College Park, UNITED STATES OF AMERICA., Zavalij PY; University of Maryland, Chemistry and Biochemistry, 20742, College Park, UNITED STATES OF AMERICA., Gaskell K; University of Maryland, Chemistry and Biochemistry, 20742, College Park, UNITED STATES OF AMERICA., Isaacs L; University of Maryland at College Park, Department of Chemistry and Biochemistry, Building 091, 20742, College Park, UNITED STATES OF AMERICA.
Jazyk: angličtina
Zdroj: Chemistry (Weinheim an der Bergstrasse, Germany) [Chemistry] 2024 Sep 27, pp. e202403176. Date of Electronic Publication: 2024 Sep 27.
DOI: 10.1002/chem.202403176
Abstrakt: Nuclear energy makes large contributions toward meeting global energy needs, but societal concerns remain high given the impacts of the intended release of radioactive materials including 129I and 131I. In this paper we explore the use of a homologous series of acyclic CB[n] type hosts (H1 - H4) as adsorbents of iodine from the vapor phase. We find that H2 - H4, but not H1 - perform well in this application with uptake capacities of 2.2 g g-1, 1.5 g g-1, and 1.9 g g-1, respectively. The chemisorptive uptake process involves partial oxidation of catechol walled H2 to quinone walled host and capture of I3- and I5-. Solid H2 can be regenerated by treatment with Na2S2O4 and reused at least five times. The x-ray crystal structure of H2 is also reported.
(© 2024 Wiley‐VCH GmbH.)
Databáze: MEDLINE
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