Journal
CHEMPHYSCHEM
Volume 15, Issue 12, Pages 2618-2625Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cphc.201402101
Keywords
bonding; electron density; energy decomposition analysis; HOMO-LUMO gap; noble gas
Funding
- DST, New Delhi
- CSIR, New Delhi
- Conacyt
- Conacyt [INFRA-2013-01-204586]
- Moshinsky Foundation
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The global minima of Be2N2, Be3N2 and BeSiN2 clusters are identified using a modified stochastic kick methodology. The structure, stability and bonding nature of these clusters bound to noble gas (Ng) atoms are studied at the MP2/def2-QZVPPD level of theory. Positive Be-Ng bond dissociation energy, which gradually increases down Group 18 from He to Rn, indicates the bound nature of Ng atoms. All of the Ng-binding processes are exothermic in nature. The Xe and Rn binding to Be2N2 and Be3N2 clusters and Ar-Rn binding to BeSiN2 are exergonic processes at room temperature; however, for the lighter Ng atoms, lower temperatures are needed. Natural population analysis, Wiberg bond index computations, electron density analysis, and energy decomposition analysis are performed to better understand the nature of Be-Ng bonds.
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