PHOTORESPONSIVE PIPERAZINE MACROCYCLES

被引：22

作者：

HUUSKONEN, J ^{[1
]}

SCHULZ, J ^{[1
]}

KOLEHMAINEN, E ^{[1
]}

RISSANEN, K ^{[1
]}

机构：

[1] UNIV JOENSUU,DEPT CHEM,SF-80101 JOENSUU 10,FINLAND

来源：

CHEMISCHE BERICHTE | 1994年 / 127卷 / 11期

关键词：

SELF-ASSEMBLY; INCLUSION COMPOUNDS; DYNAMIC NMR; MACROCYCLES; PHOTORESPONSIVE;

D O I：

10.1002/cber.1491271127

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The photoresponsive macrocyclic phanes 3, 7a, 7b, 10 were prepared. The (E) and (Z) isomers of 7b could be separated from each other by column chromatography. The X-ray structure of the 31-membered cycle (E)-7b and the 54-membered cycle (E,E)-10 shows a tendency toward self-assembly to a dimeric structure (7b) and a tubular structure (10) in the crystalline state. Additionally, both structures demonstrate inclusion of solvent molecules into the cavity (diameter 5 angstrom, 7b) and tube (diameter 11 angstrom, 10) respectively. A variable-temperature H-1-NMR study of 7b showed that the piperazine ring inversion is restricted at lower temperatures.

引用

页码：2267 / 2272

页数：6

共 22 条

[1]

BALZANI V, 1991, SUPRAMOLECULAR PHOTO

[2] PHOTOREGULATED ION BINDING [J].