mirage

Assembly behavior of inclusion complexes of β-cyclodextrin with 4-hydroxyazobenzene and 4-aminoazobenzene.

DSpace/Manakin Repository

 

Search DR-NTU


Advanced Search Subject Search

Browse

My Account

Assembly behavior of inclusion complexes of β-cyclodextrin with 4-hydroxyazobenzene and 4-aminoazobenzene.

Show full item record

Title: Assembly behavior of inclusion complexes of β-cyclodextrin with 4-hydroxyazobenzene and 4-aminoazobenzene.
Author: Liu, Yu.; Zhao, Yanli.; Chen, Yong.; Guo, Dong Sheng.
Copyright year: 2005
Abstract: To further reveal the factors governing the supramolecular assembly of β-cyclodextrin (β-CD) inclusion complexes, two aggregates (1 and 2) were prepared from the inclusion complexes of β-CD with 4-hydroxyazobenzene and 4-aminoazobenzene, respectively, and their binding behavior were investigated by means of X-ray analysis, UV-vis, NMR, and circular dichroism spectra in both solution and the solid state. The obtained results indicated that the β-CD/4-hydroxyazobenzene complex 1 could form head-to-head dimers (triclinic system, space group P1) in the solid state, which were further self-assembled to a linear supramolecular architecture by the intra- and interdimer hydrogen bond interactions as well as the intradimer pi-pi interactions. However, when the included guest 4-hydroxyazobenzene was switched to a 4-aminoazobenzene, the resultant β-CD/4-aminoazobenzene complex 2 (monoclinic system, space group P2(1)) could be self-assembled to a wave-type supramolecular aggregate under similar conditions. Furthermore, the combination of crystallographic and spectral investigations jointly revealed the inclusion complexation geometry of β-CD with 4-hydroxyazobenzene and 4-aminoazobenzene in both solution and the solid state, which demonstrated that the disparity of substituents in the azobenzenes played an important role in the inclusion complexation and molecular assembly, affecting not only the structural features of aggregates but also the binding abilities of azobenzenes with β-CD.
Subject: DRNTU::Science::Chemistry::Organic chemistry.
Type: Journal Article
Series/ Journal Title: Organic and biomolecular chemistry
School: School of Physical and Mathematical Sciences
Version: Accepted version

Files in this item

Files Size Format View
2005-584.pdf 588.9Kb PDF View/Open

This item appears in the following Collection(s)

Show full item record

Statistics

Total views

All Items Views
Assembly behavior of inclusion complexes of β-cyclodextrin with 4-hydroxyazobenzene and 4-aminoazobenzene. 326

Total downloads

All Bitstreams Views
2005-584.pdf 271

Top country downloads

Country Code Views
China 171
United States of America 58
Singapore 16
Japan 5
United Kingdom 4

Top city downloads

city Views
Beijing 153
Mountain View 29
Singapore 16
Southampton 4
Redwood City 3

Downloads / month

  2014-02 2014-03 2014-04 total
2005-584.pdf 0 0 11 11