Interaction Between the Rubidium Cation and [2.2.2]Paracyclophane: Experimental and Theoretical Study
| Autor: | Emanuel Makrlík, Stanislav Böhm, David Sýkora, Magdalena Kvíčalová, Petr Vaňura |
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| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: | |
| Zdroj: | Acta Chimica Slovenica, Vol 65, Iss 2, Pp 475-480 (2018) |
| Druh dokumentu: | article |
| ISSN: | 1318-0207 1580-3155 |
| DOI: | 10.17344/acsi.2017.3655 |
| Popis: | By means of electrospray ionization mass spectrometry (ESI-MS), it was evidenced experimentally that the rubidium cation (Rb+) reacts with the electroneutral [2.2.2]paracyclophane ligand (C24H24) to form the cationic complex [Rb(C24H24)]+. Moreover, applying quantum chemical calculations, the most probable conformation of the proven [Rb(C24H24)]+ complex was solved. In the complex [Rb(C24H24)]+ having a symmetry very close to C3, the “central” cation Rb+, fully located in the cavity of the parent [2.2.2]paracyclophane ligand, is coordinated to all three benzene rings of [2.2.2]paracyclophane via cation-π interaction. Finally, the binding energy, E(int), of the considered cation-π complex [Rb(C24H24)]+ was evaluated as –99.3 kJ/mol, confirming the formation of this fascinating complex species as well. This means that the [2.2.2]paracyclophane ligand can be considered as a receptor for the rubidium cation in the gas phase. |
| Databáze: | Directory of Open Access Journals |
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