The number of kekulé structures for rectangle-shaped benzenoids, part VIII: Some perforated rectangles - Details

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author：

Cyvin, S.J. (Cyvin, S.J..) ^[1] | Cyvin, B.N. (Cyvin, B.N..) ^[2] | Brunvoll, J. (Brunvoll, J..) ^[3] | Chen, R.-S. (Chen, R.-S..) ^[4]

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Abstract：

Classes　of　coronoids　(or　degenerate　coronoids),　r　and　q　are　obtained　by　providing　the　rectangle-shaped　benzenoids　Rj　(m,　3)　with　a　naphthalenic　or　pyrenic　hole,　respectively.　The　numbers　of　Kekulé　structures　(K)　are　studied.　It　was　found　for　the　K　numbers　of　the　classes　in　question:r=4/5　R　and　q=1/5　R.　The　classes　r′　and　q′　are　similar　to　r　and　q,　respectively,　but　the　naphthalenic　or　pyrenic　hole　is　oriented　in　a　different　way.　For　these　classes　it　was　found:r′=3/5　R,　q′=2/5　R.　©　1989　Springer-Verlag.

Keyword：

Benzenoids; Coronoids; Kekulé structures

Community：

[ 1 ] [Cyvin, S.J.]Division of Physical Chemistry, The University of Trondheim, Trondheim-NTH, N-7034, Norway
[ 2 ] [Cyvin, B.N.]Division of Physical Chemistry, The University of Trondheim, Trondheim-NTH, N-7034, Norway
[ 3 ] [Brunvoll, J.]Division of Physical Chemistry, The University of Trondheim, Trondheim-NTH, N-7034, Norway
[ 4 ] [Chen, R.-S.]Department of Planning and Statistics, Fuzhou University, Fuzhou, Fujian, China

Reprint 's Address：

[Cyvin, S.J.]Division of Physical Chemistry, The University of Trondheim, Trondheim-NTH, N-7034, Norway

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Source ：

Monatshefte für Chemie Chemical Monthly

ISSN： 0026-9247

Year： 1989

Issue： 10

Volume： 120

Page： 833-847

1 . 7 0 0

JCR@2023

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