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Stability and DFT calculated structure of protonated tetraethyl p-tert-butyltetrathiacalix[4]arene tetraacetate in the cone conformation

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    0308069 - ÚMCH 2008 RIV AT eng J - Journal Article
    Dybal, Jiří - Makrlík, E. - Vaňura, P. - Selucký, P.
    Stability and DFT calculated structure of protonated tetraethyl p-tert-butyltetrathiacalix[4]arene tetraacetate in the cone conformation.
    [Stabilita a DFT vypočítaná struktura protonovaného tetraethyl p-tert-butyltetrathiacalix[4]arene tetraacetátu v kuželovité konformaci.]
    Monatshefte fur Chemie. Roč. 138, č. 12 (2007), s. 1239-1242. 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: 0.972, year: 2007

    From extraction experiments in the two-phase water-nitrobenzene system and γ-activity measurements, the stability constant of protonated tetraethyl p-tert-butyltetrathiacalix[4]arene tetraacetate (cone) in nitrobenzene saturated with water was determined. Three different structures of the resulting complex species were indicated by means of the DFT calculations.

    Z extrakčních experimentů ve dvoufázovém systému voda-nitrobenzen a z měření γ-aktivity byla stanovena stabilizační konstanta protonovaného tetraethyl p-tert-butyltetrathiacalix[4]arene tetraacetátu (kužel) v nitrobenzenu saturovaném vodou. DFT výpočty ukazují, že výsledný komplex existuje ve třech rozdílných strukturách.
    Permanent Link: http://hdl.handle.net/11104/0004610

     
     
Number of the records: 1  

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