Graphical linking of MO multicenter bond index and VB structures. II-5-c rings and 6-c heterocyclic rings

被引:24
作者
Bollini, CG
Giambiagi, M
de Giambiagi, MS
de Figueiredo, AP
机构
[1] Ctr Brasileiro Pesquisas Fis, BR-22290180 Rio De Janeiro, Brazil
[2] Univ La Plata, Fac Ciencias Exactas, Dept Fis, La Plata, Argentina
[3] Comis Invest Pcia, La Plata, Argentina
关键词
MO multicenter bond index; VB structures; 5-c rings; 6-c heterocyclic rings;
D O I
10.1023/A:1016692425299
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Through the graphical method proposed, it is possible to create a link between an MO multicenter bond index and VB structures. The value of the index depends on the order of the atoms involved, if there are more than three. For 5-c rings, three basic structures are required; the eventually different values are 12. Unlike the 6-c case, it may happen that different pairs of basic structures are used to build the same polygon. For the 6-c rings, including heteroatoms, the original degeneracy of benzene splits, leading eventually to 60 different I-ring values.
引用
收藏
页码:113 / 120
页数:8
相关论文
共 22 条
[1]   Graphical linking of a MO multicenter bond index to VB structures [J].
Bollini, CG ;
Giambiagi, M ;
de Giambiagi, MS ;
de Figueiredo, AP .
JOURNAL OF MATHEMATICAL CHEMISTRY, 2000, 28 (1-3) :71-81
[2]   PROS AND CONS OF SIGMA-AROMATICITY [J].
CREMER, D .
TETRAHEDRON, 1988, 44 (24) :7427-7454
[3]  
DEGIAMBIAGI MS, 1984, Z NATURFORSCH A, V39, P1259
[4]  
DEGIAMBIAGI MS, IN PRESS
[5]   THE 3-CENTER, 2-ELECTRON CHEMICAL-BOND [J].
DEKOCK, RL ;
BOSMA, WB .
JOURNAL OF CHEMICAL EDUCATION, 1988, 65 (03) :194-197
[6]   CHEMICAL IMPLICATIONS OF SIGMA-CONJUGATION [J].
DEWAR, MJS .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1984, 106 (03) :669-682
[7]   Multicenter bond indices as a measure of aromaticity [J].
Giambiagi, M ;
de Giambiagi, MS ;
Silva, CDD ;
de Figueiredo, AP .
PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2000, 2 (15) :3381-3392
[8]   DEFINITION OF AVE BOND INDEX WITH NON-ORTHOGONAL BASIS - PROPERTIES AND APPLICATIONS [J].
GIAMBIAGI, M ;
GIAMBIAGI, M ;
GREMPEL, DR ;
HEYMANN, CD .
JOURNAL DE CHIMIE PHYSIQUE ET DE PHYSICO-CHIMIE BIOLOGIQUE, 1975, 72 (01) :15-22
[9]   Definition of a Multicenter Bond Index [J].
Giambiagi, Mario ;
de Giambiagi, Myriam S. ;
Mundim, Kleber C. .
STRUCTURAL CHEMISTRY, 1990, 1 (05) :423-427
[10]   INCREASED-VALENCE FORMULAE FOR NITRO AND NITROSO COMPOUNDS [J].
HARCOURT, RD .
JOURNAL OF MOLECULAR STRUCTURE, 1971, 9 (03) :221-&