Novel photo-induced aggregation behavior of a supramolecular system containing iron(III) magnetic ionic liquid and azobenzene

Takashiro Akitsu, Yasuaki Einaga

Research output: Contribution to journalArticle

33 Citations (Scopus)

Abstract

New photo-controllable supramolecular system containing magnetic ionic liquid (iron(III) chloride with 1-butyl-3-methylimidazolium chloride) and azobenzene has been prepared. Reversible structural changes due to cis-trans photoisomerization of azobenzene could be observed by means of resonance Raman and electronic spectroscopy. Field dependence of magnetic moment at 298 K exhibited paramagnetic behavior similar to pure iron(III) magnetic ionic liquid. Alternate irradiation of UV and visible light at 298 K resulted in a monotonous increase of magnetic moment. In analogy with previous study, the novel behavior can be explained as irreversible aggregation of paramagnetic iron(III) complexes forming a short-range order in the supramolecular system.

Original languageEnglish
Pages (from-to)1108-1110
Number of pages3
JournalInorganic Chemistry Communications
Volume9
Issue number11
DOIs
Publication statusPublished - 2006 Nov

Fingerprint

Ionic Liquids
Azobenzene
Ionic liquids
Agglomeration
Iron
iron
liquids
Magnetic moments
magnetic moments
iron chlorides
Photoisomerization
Raman Spectrum Analysis
Magnetic Fields
Ultraviolet Rays
Raman spectroscopy
chlorides
Chlorides
irradiation
azobenzene
Irradiation

Keywords

  • Azobenzene
  • Iron(III)
  • Magnetic ionic liquid
  • Photofunctional materials
  • Supramolecular chemistry

ASJC Scopus subject areas

  • Biochemistry
  • Inorganic Chemistry
  • Physical and Theoretical Chemistry
  • Materials Chemistry

Cite this

Novel photo-induced aggregation behavior of a supramolecular system containing iron(III) magnetic ionic liquid and azobenzene. / Akitsu, Takashiro; Einaga, Yasuaki.

In: Inorganic Chemistry Communications, Vol. 9, No. 11, 11.2006, p. 1108-1110.

Research output: Contribution to journalArticle

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