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Experimental evidence, stability, and the most probable structure of protonated p-tert-butylcalix[4]arenetetrakis (N,N-dimethylacetamide)
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SYSNO ASEP 0330562 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Experimental evidence, stability, and the most probable structure of protonated p-tert-butylcalix[4]arenetetrakis (N,N-dimethylacetamide) Author(s) Makrlík, E. (CZ)
Dybal, Jiří (UMCH-V) RID, ORCID
Budka, J. (CZ)
Vaňura, P. (CZ)Source Title Monatshefte fur Chemie. - : Springer - ISSN 0026-9247
Roč. 140, č. 10 (2009), s. 1155-1158Number of pages 4 s. Language eng - English Country AT - Austria Keywords calixarenes ; macrocycles ; protonation Subject RIV CD - Macromolecular Chemistry R&D Projects 1ET400500402 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) CEZ AV0Z40500505 - UMCH-V (2005-2011) UT WOS 000270185100005 DOI 10.1007/s00706-009-0165-z Annotation From extraction experiments and gamma-activity measurements, the extraction constant corresponding to the equilibrium H3O+(aq) + 1.Na+(nb) equil. 1.H3O+ (nb) + Na+ (aq) taking place in the two-phase water-nitrobenzene system (1: p-tert-butylcalix[4] arenetetrakis(N,N-dimethylacetamide)) was evaluated as -0.1 +/- 0.1. By using quantum mechanical DFT calculations, the most probable structure of the 1.H3O+ cationic complex species was derived. Workplace Institute of Macromolecular Chemistry Contact Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358 Year of Publishing 2010
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