Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 132, Issue 50, Pages 17787-17794Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ja1053175
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Funding
- MICINN of Spain [CTQ2008-06549-CO2-02/BQU, CSD2006-0003]
- CIRIT of the Catalan Government [2009SGR259]
- ICIQ Foundation
- Generalitat de Catalunya [2009FIC00026]
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Uranyl-peroxide nanoclusters display different topologies based on square, pentagonal and hexagonal building blocks. Computed complexation energies of different cations (Li+, Na+, K+, Rb+, and Cs+) with [UO2(O-2)(H2O)](n) (n = 4, 5, and 6) macrocycles suggest a strong cation templating effect. The inherent bent structure of a U-O-2-U model dimer is demonstrated and justified through the analysis of its electronic structure, as well as of the inherent curvature of the four-, five-, and six-uranyl macrocyles. The curvature is enhaced by cation coordination, which is suggested to be the driving force for the self-assembly of the nanocapsules.
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