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1998 (1)
1Author    Ivan Gutman, SvenJ. Cyvin, Vesna Ivanov-PetrovićRequires cookie*
 Title    Topological Properties of Circumcoronenes  
 Abstract    The regular-hexagon-shaped benzenoid hydrocarbons: B, = benzene (C 6 H 6), B 2 = coronene (C24H12), B 3 = circumcoronene (C 54 H 18), B 4 = circumcircumcoronene (C 15 oH 3 o), etc. possess unique topological properties. General expressions for the most important of such properties (number of fun-damental structural invariants, number of Kekule and Clar structures, number of aromatic sextets, Wie-ner and Szeged indices, spectral moments) are given, including a number of results that are communi-cated here for the first time. Cyclic conjugation in circumcoronenes is analyzed by means of its ener-gy-effect, and found to agree with the predictions of Clar's aromatic sextet theory only in the case of B[ and B 2 . 
  Reference    Z. Naturforsch. 53a, 699—703 (1998); received April 4 1998 
  Published    1998 
  Keywords    Circumcoronenes, Benzenoid Hydrocarbons, Topological Properties (of Benzenoid Hydro-carbons), Kekule Structures, Clar Theory 
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 TEI-XML for    default:Reihe_A/53/ZNA-1998-53a-0699.pdf 
 Identifier    ZNA-1998-53a-0699 
 Volume    53