Author:
Tang Hui-Shuai ,Zhang Xiu-Rong ,Kang Zhang-Li ,Wu Li-Qing ,
Abstract
The possible geometrical and electronic structures of (OsnN)0, ±(n=1—6) clusters are optimized by using the density functional theory (B3LYP) at the LANL2DZ level. For the ground state structures of (OsnN)0,±(n=1—6) clusters, the average binding energies, second finite differences, dissociation energies and energy gaps are analyzed. The calculated results show that there are many different isomerides in (OsnN)0,±(n=1—6) clusters. With the increase of number of atoms, the N atom tend to the peripheral endpoint; the clusters show "odd - even" oscillation and "magic number" effect. The cluster is more stable when the number of atoms is even than odd. It was found that the Os3N+ and Os5N+ clusters are the most stable and n=4 clusters is the least stable, yet the stability of (OsnN)0,±(n=1—6) clusters have increased significantly than pure osmium clusters.
Publisher
Acta Physica Sinica, Chinese Physical Society and Institute of Physics, Chinese Academy of Sciences
Subject
General Physics and Astronomy
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