Energetically optimized structure of Cg has been obtained by means of the semi-empirical (MIND0/3) MO calculation. A C, molecule has the same symmetry (DSh) as CT0 but with a slightly deformed geometry. The charge and the spin distribution shows a definite difference from that of C,g,. Such feature
Structural and electronic properties of C70
✍ Scribed by Wanda Andreoni; François Gygi; Michele Parrinello
- Publisher
- Elsevier Science
- Year
- 1992
- Tongue
- English
- Weight
- 313 KB
- Volume
- 189
- Category
- Article
- ISSN
- 0009-2614
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✦ Synopsis
Using the Car-Parrinello method based on the local density approximation of density functional theory, we have investigated the structural and electronic properties of the CT0 fullerene cluster in the prolate spheroidal structure of symmetry Dss. The Go structure has been fully relaxed and an interesting pattern of deformations obtained. The electronic structure is in satisfactory agreement with photoemission data. Comparison is made with other theoretical results.
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The electronic and vibrational structures of C,, and C,,, have been calculated at the PM3 semiempirical level. C, has a partially delocalized structure, while C,, has both a localized set and a delocalized set of MOs. As with AM1 and MNDO, PM3 predicts the heat of formation of C,, to be greater than
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