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Interaction of cesium ions with calix[4]arene-bis(t-octylbenzo-18-crown-6): NMR and theoretical study
- 1.0360502 - ÚMCH 2012 RIV US eng J - Journal Article
Kříž, Jaroslav - Dybal, Jiří - Makrlík, E. - Vaňura, P. - Moyer, B. A.
Interaction of cesium ions with calix[4]arene-bis(t-octylbenzo-18-crown-6): NMR and theoretical study.
Journal of Physical Chemistry B. Roč. 115, č. 23 (2011), s. 7578-7587. ISSN 1520-6106. E-ISSN 1520-5207
R&D Projects: GA ČR GA203/09/1478
Institutional research plan: CEZ:AV0Z4050913
Keywords : calixaren-bis-crown * cesium ions * NMR
Subject RIV: CD - Macromolecular Chemistry
Impact factor: 3.696, year: 2011
Interaction of cesium dicarbollylcobaltate with calix[4]arene-bis(t-octylbenzo-18-crown-6) in nitrobenzene-d5 was studied using 1H, 13C, and 133Cs NMR, relaxations and PFG NMR. It was found that the calixarene-bis-crown binds two Cs cations with almost equal strength. Diffusion measurements and DFT calculations show that one DCC anion is bound to the complex. The dynamics of Cs binding was studied by a saturation-transfer technique.
Permanent Link: http://hdl.handle.net/11104/0006488
Number of the records: 1