dorsal/arxiv
View SchemaAre hemispherical caps of boron-nitride nanotubes possible?
| Authors | Rajendra R. Zope, Brett I. Dunlap |
|---|---|
| Categories | |
| ArXiv ID | physics/0402103 |
| URL | https://arxiv.org/abs/physics/0402103 |
| DOI | 10.1016/j.cplett.2004.01.094 |
| Journal | Chemical Physics Letters 386, 403 (2004). |
Abstract
We report all-electron, density-functional calculations with large Gaussian polarization basis set of the recently synthesized octahedral B24N24 cage that is perfectly round by symmetry, and boron-nitride (BN) clusters that its existence might suggest. We consider whether it is energetically possible that the two halves of this round cage could cap the BN nanotubes, modeled by B28N28 and B32N32. The energetics show that BN nanotubes with such round caps, are only slightly less favorable than the BN clusters containing six squares as the only defects in the otherwise perfect hexagonal lattice. A larger B96N96 octahedral cage formed from B24N24 by adding sufficient hexagons to isolate all squares is not very favorable energetically. The squares protrude noticeably from its otherwise round surface.
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"abstract": "We report all-electron, density-functional calculations with large Gaussian\npolarization basis set of the recently synthesized octahedral B24N24 cage that\nis perfectly round by symmetry, and boron-nitride (BN) clusters that its\nexistence might suggest. We consider whether it is energetically possible that\nthe two halves of this round cage could cap the BN nanotubes, modeled by B28N28\nand B32N32. The energetics show that BN nanotubes with such round caps, are\nonly slightly less favorable than the BN clusters containing six squares as the\nonly defects in the otherwise perfect hexagonal lattice. A larger B96N96\noctahedral cage formed from B24N24 by adding sufficient hexagons to isolate all\nsquares is not very favorable energetically. The squares protrude noticeably\nfrom its otherwise round surface.",
"arxiv_id": "physics/0402103",
"authors": [
"Rajendra R. Zope",
"Brett I. Dunlap"
],
"categories": [
"physics.atm-clus",
"cond-mat.mtrl-sci",
"physics.chem-ph"
],
"doi": "10.1016/j.cplett.2004.01.094",
"journal_ref": "Chemical Physics Letters 386, 403 (2004).",
"title": "Are hemispherical caps of boron-nitride nanotubes possible?",
"url": "https://arxiv.org/abs/physics/0402103"
},
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