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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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    0330562 - ÚMCH 2010 RIV AT eng J - Journal Article
    Makrlík, E. - Dybal, Jiří - Budka, J. - Vaňura, P.
    Experimental evidence, stability, and the most probable structure of protonated p-tert-butylcalix[4]arenetetrakis (N,N-dimethylacetamide).
    Monatshefte fur Chemie. Roč. 140, č. 10 (2009), s. 1155-1158. ISSN 0026-9247. E-ISSN 1434-4475
    R&D Projects: GA AV ČR 1ET400500402
    Institutional research plan: CEZ:AV0Z40500505
    Keywords : calixarenes * macrocycles * protonation
    Subject RIV: CD - Macromolecular Chemistry
    Impact factor: 1.312, year: 2009

    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.
    Permanent Link: http://hdl.handle.net/11104/0005479

     
     
Number of the records: 1  

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