The isolated-pentagon rule and nice substructures in fullerenes
The isolated-pentagon rule and nice substructures in fullerenes
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富勒烯中的孤立五边形规则和良好的子结构
DOI:
10.26493/1855-3974.1359.b33
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发表时间:
2018-09
影响因子:
0.8
通讯作者:
Zhang Heping
中科院分区:
文献类型:
--
作者:
Li Hao;Zhang Heping
After fullerenes were discovered, Kroto in 1987 proposed first the isolated-pentagon rule (IPR): the most stable fullerenes are those in which no two pentagons share an edge, that is, each pentagon is completely surrounded by hexagons. To now the structures of the synthesized and isolated (neutral) fullerenes meet this rule. The IPR can be justified from local strain in geometry and π-electronic resonance energy of fullerenes. If two pentagons.abut in a fullerene, a 8-circuit along the perimeter of the pentalene (a pair of abutting pentagons) occurs. This paper confirms that such a 8-circuit is always a conjugated cycle of the fullerene in a graph-theoretical approach. Since conjugated circuits of length 8 destabilize the molecule in conjugated circuit theory, this result gives a basis for the IPR in pi-electronic resonance. We also prove that each 6-circuit (hexagon) and each 10-circuit along the perimeter of a pair of abutting hexagons are conjugated. Two such types of conjugated circuit satisfy the (4n + 2)-rule, and thus stabilise the molecule.
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影响因子:
15
作者:
M. Randic
通讯作者:
M. Randic
影响因子:
4.2
作者:
D. Manolopoulos;P. Fowler
通讯作者:
D. Manolopoulos;P. Fowler
DOI:
10.4153/cjm-1963-071-3
发表时间:
1963-01-01
期刊:
CANADIAN JOURNAL OF MATHEMATICS
影响因子:
--
作者:
GRUNBAUM, B;MOTZKIN, TS
通讯作者:
MOTZKIN, TS
DOI:
10.1039/c5cp03643g
发表时间:
2015-08
期刊:
Physical chemistry chemical physics : PCCP
影响因子:
--
作者:
P. Fowler;S. Nikolic;R. de los Reyes;Wendy J. Myrvold
通讯作者:
P. Fowler;S. Nikolic;R. de los Reyes;Wendy J. Myrvold
DOI:
10.1039/c5cp04970a
发表时间:
2016-04
期刊:
Physical chemistry chemical physics : PCCP
影响因子:
--
作者:
A. Matías;R. Havenith;M. Alcamí;A. Ceulemans
通讯作者:
A. Matías;R. Havenith;M. Alcamí;A. Ceulemans