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Issue 15, 2006
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Aromaticity rules for cycles with arbitrary numbers of half-twists

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Abstract

A simple proof is given that the Hückel aromaticity rules generalise to cycles with an arbitrary number of half-twists, T; addition/removal of half-twists two at a time preserves all eigenvalues and degeneracies, so that closed-shell aromatic systems occur at π-electron counts 4N + 2, and antiaromatic at 4N for even T, and vice versa for odd T.

Graphical abstract: Aromaticity rules for cycles with arbitrary numbers of half-twists

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Publication details

The article was received on 03 Feb 2006, accepted on 17 Feb 2006 and first published on 20 Mar 2006


Article type: Communication
DOI: 10.1039/B601655C
Citation: Phys. Chem. Chem. Phys., 2006,8, 1775-1777

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    Aromaticity rules for cycles with arbitrary numbers of half-twists

    P. W. Fowler and H. S. Rzepa, Phys. Chem. Chem. Phys., 2006, 8, 1775
    DOI: 10.1039/B601655C

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