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The electronic structure of α-quartz: A periodic Hartree–Fock calculation

✍ Scribed by Dovesi, R.; Pisani, C.; Roetti, C.; Silvi, B.


Book ID
111961470
Publisher
American Institute of Physics
Year
1987
Tongue
English
Weight
568 KB
Volume
86
Category
Article
ISSN
0021-9606

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## Abstract This paper is concerned with a new application of projected‐unrestricted Hartree–Fock theory, namely, the calculation of electronic spectra for symmetric molecules. The excited electronic state is represented by a single determinant whose unrestricted nature allows for orbital rearrange