1964
DOI: 10.1002/recl.19640830717
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Valency‐bond studies of some conjugated hydrocarbons ‐ III: Calculations on heptalene

Abstract: Valency-bond calculations on heptalene suggest that bond length alternation occurs in the ground state. Penney-Dirac bond orders have been determined.Recently a successful synthesis of the unsaturated hydrocarbon heptalene C12Hlo ( fig. 1) has been performed by Dauben and Berfelliz. From the rather limited experimental data these authors concluded that the compound more closely resembles a weakly interacting cyclopolyene than a strongly interacting aromatic system. Such behaviour may be supported by calculatio… Show more

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