Aromaticity via Kekule structures and conjugated circuits
نویسندگان
چکیده
منابع مشابه
Aromaticity of polycyclic conjugated hydrocarbons.
G. Clar 6n Rule versus Hückel 4n + 2 Rule 3464 H. Hydrocarbons versus Heteroatomic Systems 3465 IV. Hidden Treasures of Kekulé Valence Structures 3466 A. Conjugated Circuits 3467 B. Innate Degree of Freedom 3470 C. Clar Structures 3472 V. Graph Theoretical Approach to Chemical Structure 3473 A. Metric 3473 B. Chemical Graphs 3473 C. Isospectral Graphs 3473 D. Embedded Graphs 3475 E. Partial Ord...
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Localized molecular orbitals for n-systems of conjugated polycyclic hydrocarbons have been calculated using both intrinsic and external localization criteria relying only on molecular topology. For benzenoid aromatic compounds the intrinsic localized molecular orbital arrangement can always be associated to the Kekule structure of maximal Kekule index value. However hydrocarbons containing four...
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One-dimensional polymer refers here to a polymer with a variable size in only one dimension. A new method for enumeration of Kekulć structures in such polymeric conjugated hydrocarbons is presented. It is quite general, but still efficient and simple to use. It is especially usefu1 for evaluation of the Kekule structure count, K, in polymers with regular structure, i. e. in those built up of eq...
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ژورنال
عنوان ژورنال: Journal of Chemical Education
سال: 1992
ISSN: 0021-9584,1938-1328
DOI: 10.1021/ed069p691