文章基本信息

标题：Perfect Matchings in Polyhexes, or Recent Graph-theoretical Contributions to Benzenoids
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作者：A.T. Balaban, M. Randić
期刊名称：Journal of Universal Computer Science
印刷版ISSN：0948-6968
出版年度：2007
卷号：13
期号：11
页码：1514-1514
出版社：Graz University of Technology and Know-Center
摘要：After an introduction on the history of polycyclic aromatic compounds, recent advances in the theory of benzenoids are briefly reviewed. Then using systems with 4, 5, or 6 benzenoid rings for illustration, the partition of the P π-electrons among the rings of the benzenoid is presented, followed by a different way of examining the distribution of these π-electrons which is called the signature of the benzenoid, consisting in six integers from s6 to s1. The P π-electrons are divided between the two sums s6 + s5 + s2 + s1 and s4 + s3 characterizing thereby the closeness of benzenoids to all-resonant structures according to Clars theory.
关键词：Clar structures, isoarithmic benzenoids, perfect matchings (1-factors, resonance structures, or Kekul'e structures), polycyclic aromatic hydrocarbons (polyhexes or benzenoids)