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On the reaction of N and O atoms with carbon nanotubes

机译:N和O原子与碳纳米管的反应

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摘要

We have studied the reaction of N and 0 atoms with a (9,0) carbon nanotube using clusters and the ONIOM method with the B3LYP/6-31G* level of theory. For both N and 0 atoms in their ground state, addition to the CNT requires a surface crossing and presumably involves a barrier, while we show that addition of the excited state of N(D-2) has no barrier, and we believe this also to be true for O(D-1). Both N and 0 atoms bond in a bridged structure and have bond strengths of 25.0 and 67.9 kcal/mol (estimated), respectively, with respect to CNT plus the ground state of the N or 0 atom. (C) 2003 Elsevier Science B.V. All rights reserved. [References: 13]
机译:我们使用簇和ONIOM方法以B3LYP / 6-31G *理论水平研究了N和0原子与(9,0)碳纳米管的反应。对于处于基态的N和0原子,添加到CNT都需要表面交叉并且可能包含势垒,而我们证明添加N(D-2)的激发态没有势垒,并且我们相信这也是对于O(D-1)是正确的。 N和0原子都以桥接结构键合,相对于CNT加N或0原子的基态,其键合强度分别为25.0和67.9 kcal / mol(估计值)。 (C)2003 Elsevier Science B.V.保留所有权利。 [参考:13]

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