Abstract
These structures are calculated via the generalized Hartree-Fock method, in which electrons with opposed spin projections may take up different MO [molecular orbitals]. The results do not conflict with the available experimental evidence. An experiment is proposed to detect the antiferromagnetic spin structure predicted for cumulenes of sufficient length.
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Misurkin, I.A., Ovchinnikov, A.A. The electronic structures of large π-electron systems (graphite, polyacenes, cumulenes). Theor Exp Chem 4, 1–5 (1970). https://doi.org/10.1007/BF00525936
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DOI: https://doi.org/10.1007/BF00525936