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Research on Chemical Intermediates

, Volume 30, Issue 2, pp 181–190 | Cite as

Effect of metal cation on photoisomerization of azobenzenes in zeolite nanocavities

  • Masanobu Kojima
  • Miyuki Nakajoh
  • Satomi Nebashi
  • Noriyuki Kurita
Article

In the photostationary state, the cis/trans isomer ratio of azobenzene and 3,3′-dimethylazobenzene adsorbed in zeolite NaY increases significantly to ca. 90:10, in contrast to the reaction in cyclohexane. However, for azobenzene-4,4′-dicarboxylic acid diethyl ester the formation of the cis isomer is remarkably suppressed to ca. 30%. On the basis of ab initio MO calculations, it is suggested that electrostatic interaction between these azobenzenes and the metal ions in zeolite nanocavities regulates the cis-trans photoisomerization process. In addition, it is found that the photoisomerization behavior of azobenzenes adsorbed on silica gel is similar to that in NaY.

ZEOLITE NANOCAVITIES METAL CATION EFFECT PHOTOISOMERIZATION AZOBENZENE ELECTROSTATIC INTERACTION 

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© VSP 2004

Authors and Affiliations

  • Masanobu Kojima
  • Miyuki Nakajoh
  • Satomi Nebashi
  • Noriyuki Kurita

There are no affiliations available

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