Abstract
The usual Born-Kármán boundary conditions applied in a tight-binding calculation of a cyclic polymer are relaxed by mixing the Bloch MOs of a particular band under a perturbation which creates certain states associated with the newly-formed ends of the polymer and which have energies outside the range of the particular band.
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Morton-Blake, D.A. The effect of ring opening on the MOs of a cyclic polymer. Theoret. Chim. Acta 51, 85–95 (1979). https://doi.org/10.1007/BF00554093
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DOI: https://doi.org/10.1007/BF00554093