Abstract
Poly(ethylene glycol) (PEG)-substituted cyclodextrin (CD) with an azobenzene group at the terminal of the PEG chain (6-Az-PEG600-HyCiO-β-CD) was synthesized. The conformation of 6-Az-PEG600-HyCiO-β-CD in aqueous solution could be controlled thermally and photochemically. At low concentration, 6-trans-Az-PEG600-HyCiO-β-CD formed different types of self-inclusion complexes or existed in a dethreading form depending on the temperature, while at high concentration, an intermolecular complex was formed. Moreover, UV-light irradiation induced a conformational change to a self-inclusion complex where the CD cavity included the azobenzene part regardless of the concentration.
| Original language | English |
|---|---|
| Pages (from-to) | 6396-6397 |
| Number of pages | 2 |
| Journal | Journal of the American Chemical Society |
| Volume | 129 |
| Issue number | 20 |
| DOIs | |
| Publication status | Published - May 23 2007 |
| Externally published | Yes |
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All Science Journal Classification (ASJC) codes
- Catalysis
- Chemistry(all)
- Biochemistry
- Colloid and Surface Chemistry
Cite this
Thermal and photochemical switching of conformation of poly(ethylene glycol)-substituted cyclodextrin with an azobenzene group at the chain end. / Inoue, Youhei; Kuad, Paul; Okumura, Yasushi; Takashima, Yoshinori; Yamaguchi, Hiroyasu; Harada, Akira.
In: Journal of the American Chemical Society, Vol. 129, No. 20, 23.05.2007, p. 6396-6397.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Thermal and photochemical switching of conformation of poly(ethylene glycol)-substituted cyclodextrin with an azobenzene group at the chain end
AU - Inoue, Youhei
AU - Kuad, Paul
AU - Okumura, Yasushi
AU - Takashima, Yoshinori
AU - Yamaguchi, Hiroyasu
AU - Harada, Akira
PY - 2007/5/23
Y1 - 2007/5/23
N2 - Poly(ethylene glycol) (PEG)-substituted cyclodextrin (CD) with an azobenzene group at the terminal of the PEG chain (6-Az-PEG600-HyCiO-β-CD) was synthesized. The conformation of 6-Az-PEG600-HyCiO-β-CD in aqueous solution could be controlled thermally and photochemically. At low concentration, 6-trans-Az-PEG600-HyCiO-β-CD formed different types of self-inclusion complexes or existed in a dethreading form depending on the temperature, while at high concentration, an intermolecular complex was formed. Moreover, UV-light irradiation induced a conformational change to a self-inclusion complex where the CD cavity included the azobenzene part regardless of the concentration.
AB - Poly(ethylene glycol) (PEG)-substituted cyclodextrin (CD) with an azobenzene group at the terminal of the PEG chain (6-Az-PEG600-HyCiO-β-CD) was synthesized. The conformation of 6-Az-PEG600-HyCiO-β-CD in aqueous solution could be controlled thermally and photochemically. At low concentration, 6-trans-Az-PEG600-HyCiO-β-CD formed different types of self-inclusion complexes or existed in a dethreading form depending on the temperature, while at high concentration, an intermolecular complex was formed. Moreover, UV-light irradiation induced a conformational change to a self-inclusion complex where the CD cavity included the azobenzene part regardless of the concentration.
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U2 - 10.1021/ja071717q
DO - 10.1021/ja071717q
M3 - Article
VL - 129
SP - 6396
EP - 6397
JO - Journal of the American Chemical Society
JF - Journal of the American Chemical Society
SN - 0002-7863
IS - 20
ER -