Electron affinities of small linear carbon clusters. Coupled cluster calculations with first-order correlation orbitals

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Abstract

Electron affinities of the C3, C4, C5, and C6 linear clusters are theoretically determined using an ab initio procedure which combines the first-order correlation orbital method and the coupled cluster method. The theoretical values 1.58, 3.41, 2.43, and 3.69 e.V. for C3, C4, C5, and C6, respectively, are systematically lower than the experimental estimates of Smalley et al. [Chem. Phys. Lett. 144, 431 (1988) ] (1.95, 3.70, 2.80, and 4.10 e.V.); however, the trends corresponding to the odd-even numbered chain alternation and to the increase of the size of the cluster are very similar.

Original languageEnglish (US)
Pages (from-to)1241-1246
Number of pages6
JournalThe Journal of Chemical Physics
Volume94
Issue number2
StatePublished - 1991

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Carbon clusters
Electron affinity
electron affinity
orbitals
carbon
alternations
trends
estimates

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

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title = "Electron affinities of small linear carbon clusters. Coupled cluster calculations with first-order correlation orbitals",
abstract = "Electron affinities of the C3, C4, C5, and C6 linear clusters are theoretically determined using an ab initio procedure which combines the first-order correlation orbital method and the coupled cluster method. The theoretical values 1.58, 3.41, 2.43, and 3.69 e.V. for C3, C4, C5, and C6, respectively, are systematically lower than the experimental estimates of Smalley et al. [Chem. Phys. Lett. 144, 431 (1988) ] (1.95, 3.70, 2.80, and 4.10 e.V.); however, the trends corresponding to the odd-even numbered chain alternation and to the increase of the size of the cluster are very similar.",
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AB - Electron affinities of the C3, C4, C5, and C6 linear clusters are theoretically determined using an ab initio procedure which combines the first-order correlation orbital method and the coupled cluster method. The theoretical values 1.58, 3.41, 2.43, and 3.69 e.V. for C3, C4, C5, and C6, respectively, are systematically lower than the experimental estimates of Smalley et al. [Chem. Phys. Lett. 144, 431 (1988) ] (1.95, 3.70, 2.80, and 4.10 e.V.); however, the trends corresponding to the odd-even numbered chain alternation and to the increase of the size of the cluster are very similar.

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