Evaluation of planarity and aromaticity in sapphyrin and inverted sapphyrin using a bidirectional NICS (Nucleus-Independent Chemical Shift) scan method

被引：15
|
作者：
Yoon, Zin Seok
Noh, Su Bum
Cho, Dong-Gyu
Sessler, Jonathan L.
Kim, Dongho
机构：
[1] Univ Texas, Dept Chem & Biochem, Austin, TX 78712 USA
[2] Yonsei Univ, Dept Chem, Seoul 120749, South Korea
来源：
CHEMICAL COMMUNICATIONS | 2007年 / 23期
关键词：
D O I：
10.1039/b618674b
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Using the bidirectional NICS scan method in conjunction with two-photon absorption (TPA) measurements, it has proved possible to determine the relationship between pi-conjugation and aromaticity in two structurally related expanded porphyrin systems, sapphyrin and inverted sapphyrin, and establish that differences in these defining factors depend on the presence or absence of a key sp(3) hybrid molecular orbital within the macrocyclic periphery.
引用
收藏
页码：2378 / 2380
页数：3
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