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Novel Precursors for Boron Nanotubes: The Competition of Two-Center and Three-Center Bonding in Boron Sheets

Hui Tang and Sohrab Ismail-Beigi
Phys. Rev. Lett. 99, 115501 – Published 10 September 2007

Abstract

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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  • Received 7 May 2007

DOI:https://doi.org/10.1103/PhysRevLett.99.115501

©2007 American Physical Society

Authors & Affiliations

Hui Tang and Sohrab Ismail-Beigi

  • Department of Applied Physics, Yale University, New Haven, Connecticut 06520, USA

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Issue

Vol. 99, Iss. 11 — 14 September 2007

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