Počet záznamů: 1

Experimental and DFT study on the complexation of NH4+ with a hexaarylbenzene-based receptor

  1. 1.
    0346358 - UMCH-V 2011 RIV NL eng J - Článek v odborném periodiku
    Makrlík, E. - Toman, Petr - Vaňura, P. - Selucký, P. - Rathore, R.
    Experimental and DFT study on the complexation of NH4+ with a hexaarylbenzene-based receptor.
    Journal of Molecular Structure. Roč. 977, 1-3 (2010), s. 254-257 ISSN 0022-2860
    Grant CEP: GA ČR(CZ) GAP205/10/2280
    Výzkumný záměr: CEZ:AV0Z40500505
    Klíčová slova: extraction * DFT * complexation
    Kód oboru RIV: CD - Makromolekulární chemie
    Impakt faktor: 1.599, rok: 2010

    The stability constant of the complex of hexaarylbenzene (HAB) - based receptor and ammonium cation in nitrobenzene saturated with water was determined from extraction experiments and gamma-activity measurements. Further, using quantum chemical DFT calculations, two most probable structures of the studied complex species, which are obviously in a dynamic equilibrium, were indicated. In both of these structures of the resulting complex, having C_3 symmetry, the ammonium cation synergistically interacts with the polar ethereal oxygen fence and with the central hydrophobic benzene bottom via cation-pi interaction.
    Trvalý link: http://hdl.handle.net/11104/0005973