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Structure and Stability of Endohedral Complexes X@(HBNH)12

Structure and Stability of Endohedral Complexes X@(HBNH)12 Using quantum chemistry methods B3LYP/6‐31++G(d,p) to optimize endohedral complexes X@(HBNH)12 (X=Li0/+, Na0/+, K0/+, Be0/2+, Mg0/2+, Ca0/2+, H and He), the geometries with the lowest energy were achieved. Inclusion energy, standard equilibrium constant, natural charge, spin density, ionization potentials, and HOMO‐LUMO energy gap were also discussed. The calculation predicted that X=Na0/+, K0/+, Mg0/2+, Ca0/2+, H and He are nearly located at the center of (HBNH)12 cluster. Li+ lies in less than 0.021 nm departure from the center. Li and Be0/2+dramatically deviate from the center. (HBNH)12 prefers to enclose Li+, Be2+, Mg2+, and Ca2+in it than others. Moreover, M@(HBNH)12 (M=Li, Na, K) species are "superalkalis" in that they possess lower first ionization potentials than the Cs atom (3.9 eV). http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Chinese Journal of Chemistry Wiley

Structure and Stability of Endohedral Complexes X@(HBNH)12

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References (18)

Publisher
Wiley
Copyright
Copyright © 2006 Wiley Subscription Services, Inc., A Wiley Company
ISSN
1001-604X
eISSN
1614-7065
DOI
10.1002/cjoc.200690285
Publisher site
See Article on Publisher Site

Abstract

Using quantum chemistry methods B3LYP/6‐31++G(d,p) to optimize endohedral complexes X@(HBNH)12 (X=Li0/+, Na0/+, K0/+, Be0/2+, Mg0/2+, Ca0/2+, H and He), the geometries with the lowest energy were achieved. Inclusion energy, standard equilibrium constant, natural charge, spin density, ionization potentials, and HOMO‐LUMO energy gap were also discussed. The calculation predicted that X=Na0/+, K0/+, Mg0/2+, Ca0/2+, H and He are nearly located at the center of (HBNH)12 cluster. Li+ lies in less than 0.021 nm departure from the center. Li and Be0/2+dramatically deviate from the center. (HBNH)12 prefers to enclose Li+, Be2+, Mg2+, and Ca2+in it than others. Moreover, M@(HBNH)12 (M=Li, Na, K) species are "superalkalis" in that they possess lower first ionization potentials than the Cs atom (3.9 eV).

Journal

Chinese Journal of ChemistryWiley

Published: Nov 1, 2006

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