硼
材料科学
中心(范畴论)
纳米技术
纳米管
富勒烯
结晶学
碳纳米管
化学
有机化学
作者
Hui Tang,Sohrab Ismail‐Beigi
标识
DOI:10.1103/physrevlett.99.115501
摘要
We present a new class of boron sheets, composed of triangular and hexagonal motifs, that are more stable than structures considered to date and thus are likely to be the precursors of boron nanotubes. We describe a simple and clear picture of electronic bonding in boron sheets and highlight the importance of three-center bonding and its competition with two-center bonding, which can also explain the stability of recently discovered boron fullerenes. Our findings call for reconsideration of the literature on boron sheets, nanotubes, and clusters.
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