Conformational dynamics of a bispyridinium cyclophane

被引：17

作者：

Conejo-García, A ^{[1
]}

Campos, JM ^{[1
]}

Entrena, A ^{[1
]}

Sánchez-Martín, RM ^{[1
]}

Gallo, MA ^{[1
]}

Espinosa, A ^{[1
]}

机构：

[1] Fac Farm, Dept Quim Organ & Farmaceut, Granada 18071, Spain

来源：

JOURNAL OF ORGANIC CHEMISTRY | 2003年 / 68卷 / 22期

关键词：

D O I：

10.1021/jo0301292

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

A complete study of the conformational behavior of 4,8-diaza-3(1,4),9(4,1)-dipyridina-1,6(1,4)-dibenzenacyclo- decaphan-3(1),9(1)-bis(ilium) bishexafluorophosphate is described. This study allows us to conclude that the process observed by which the different chemical shifts of the pyridinium protons show coalescence at a high-temperature H-1 NMR is the rotation around the C-N bond, whereas the conformational equilibrium between the four conformers is produced at low temperature.

引用

页码：8697 / 8699

页数：3

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