Stuffing improves the stability of fullerenelike boron clusters

Stuffing improves the stability of fullerenelike boron clusters
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DOI:
10.1103/physrevlett.100.165504
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发表时间:
2008-04-25
影响因子:
8.6
通讯作者:
Jemmis, Eluvathingal D.
Jemmis, Eluvathingal D.
中科院分区:
物理与天体物理1区
文献类型:
--
作者:
Prasad, Dasari L. V. K.;Jemmis, Eluvathingal D.

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第一性原理电子结构计算表明,基于二十面体-B(12)填充富勒烯的硼团簇B(98)、B(99)、B(100)、B(101)和B(102)比类富勒烯的硼团簇更稳定。这些更稳定的结构被设想为一个二十面体B(12),其每个顶点通过径向2c-2e sigma键连接到一个五边形金字塔(B(6))的顶点。由此产生的B(84) (B(12)@B(12)@B(60))保持与C(60)相同的对称性,并且在其周围生成B(n) (n = 84-116)簇。我们进一步预测了产生这种基于B(12)的巨型集群的可能性。
First-principles electronic structure calculations show that boron clusters B(98), B(99), B(100), B(101), and B(102) based on icosahedral-B(12) stuffed fullerenes are more stable than the fullerenelike boron clusters. These more stable structures are envisaged as an icosahedral B(12) each vertex of which is connected to the apex of a pentagonal pyramid (B(6)) via radial 2c-2e sigma bonds. The resulting B(84) (B(12)@B(12)@B(60)) retains the same symmetry as C(60), and the B(n) (n = 84-116) clusters are generated around it. We further project the possibility of producing such B(12) based giant clusters.