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https://open.uns.ac.rs/handle/123456789/9053
Nаziv: | The influence of water molecule coordination onto the water-aromatic interaction. Strong interactions of water coordinating to a metal ion | Аutоri: | Vojislavljević D. Janjić G. Ninković D. Kapor A. Zarić, Miroslav |
Dаtum izdаvаnjа: | 21-мар-2013 | Čаsоpis: | CrystEngComm | Sažetak: | The interactions between water molecules (non-coordinating and coordinating) and aromatic rings were studied by analyzing data in the Cambridge Structural Database and by quantum chemical calculations. The results show the influence of water coordination to a metal ion; interactions of coordinating water are stronger. The MP2/def2-QZVP interaction energies of non-coordinating water and neutral aqua complexes [ScCl3(H2O)3], [ZnCl2(H2O)4], [CdCl2(H 2O)4], and [ZnCl2(H2O)2] with benzene molecule are -3.36, -5.10, -5.43, -6.86, and -5.14 kcal mol -1, respectively. Interactions of charged aqua complexes [ZnCl(H 2O)5]+ and [Zn(H2O) 6]2+ are stronger, -9.69 and -13.96 kcal mol-1, respectively. The calculations also reveal strong long-range interactions: at the distance of 3.0 Å the interaction energies of neutral complexes are in the range of -4.11 to -4.91 kcal mol-1, while interaction energies of charged complexes are -6.37 and -10.76 kcal mol-1. © 2013 The Royal Society of Chemistry. | URI: | https://open.uns.ac.rs/handle/123456789/9053 | DOI: | 10.1039/c2ce25621e |
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