Abstract
The effect of cycles on the HOMO-LUMO separation of alternant conjugated hydrocarbons is examined. A general topological regularity is established, namely that (4m + 2)- membered conjugated circuits increase and (4w)-membered conjugated circuits decrease the HOMO-LUMO separation. Möbius cyclcs exhibit an opposite effect.
Received: 1979-9-13
Published Online: 2014-6-2
Published in Print: 1980-4-1
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