CONCEALED NON-KEKULEAN BENZENOIDS

被引：10

作者：

GUO, XF

ZHANG, FJ

BRUNVOLL, J

CYVIN, BN

CYVIN, SJ

机构：

[1] UNIV TRONDHEIM, NTH, DEPT CHEM, N-7034 TRONDHEIM, NORWAY

[2] XINJIANG UNIV, DEPT MATH, XINJIANG 830046, PEOPLES R CHINA

[3] XIAMEN UNIV, DEPT MATH, FUJIAN 361005, PEOPLES R CHINA

来源：

JOURNAL OF CHEMICAL INFORMATION AND COMPUTER SCIENCES | 1995年 / 35卷 / 02期

关键词：

D O I：

10.1021/ci00024a011

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A concealed non-Kekulean benzenoid (CNB) is a benzenoid with the same number of starred and unstarred (black and white) vertices but no Kekule structure. The search for CNBs was pursued to h (number of hexagons) = 16 by computer programming. For h = 14, the previously controversial number of 9804 systems was confirmed by a construction method without use of computers. In the Appendix, the previously deduced numbers for concealed non-Kekulean helicenes with h = 11, 12, and 13 by the construction method are verified by new computer enumerations.

引用

页码：226 / 232

页数：7

共 30 条

[1] [Anonymous], MATCH COMMUN MATH CO
[2] [Anonymous], MATCH COMMUN MATH CO
[3] BALABAN AT, 1981, REV ROUM CHIM, V26, P407
[4] CHALLENGING PROBLEMS INVOLVING BENZENOID POLYCYCLICS AND RELATED SYSTEMS
BALABAN, AT
[J]. PURE AND APPLIED CHEMISTRY, 1982, 54 (05) : 1075 - 1096
[5] ENUMERATION AND CLASSIFICATION OF BENZENOID HYDROCARBONS .2. SYMMETRY AND REGULAR HEXAGONAL BENZENOIDS
BRUNVOLL, J
CYVIN, BN
CYVIN, SJ
[J]. JOURNAL OF CHEMICAL INFORMATION AND COMPUTER SCIENCES, 1987, 27 (04): : 171 - 177
[6] BRUNVOLL J, 1992, TOP CURR CHEM, V162, P181
[7] BRUNVOLL J, 1990, Z NATURFORSCH A, V45, P69
[8] BRUNVOLL J, 1987, MATCH-COMMUN MATH CO, V22, P105
[9] Clar E., 1972, AROMATIC SEXTET
[10] CYVIN BN, 1992, TOP CURR CHEM, V162, P65

← 1 2 3 →