Formation of Zn–Al layered double hydroxide thin films intercalated with sulfonated spiropyran

Formation of Zn–Al layered double hydroxide thin films intercalated with sulfonated spiropyran We prepared Zn–Al layered double hydroxide (LDH) thin films intercalated with sulfonated 1,3′,3′-trimethyl-6-nitrospiro[2H-chromene-2,2′-indoline] anions (SP-SO3 −) by immersion of sol–gel derived amorphous Al2O3–ZnO thin films in hot water containing SP-SO3H. Extended interlayer spacing, in comparison to the Zn–Al LDH with carbonate anions, was observed after immersion in distilled water containing SP-SO3H at 60 °C for 30 min, indicating that we formed Zn–Al LDH films with SP-SO3 − directly on glass substrates. The merocyanine form of SP-SO3 − was shown by UV spectra to have stabilized in the hydroxide layers of LDH. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

Formation of Zn–Al layered double hydroxide thin films intercalated with sulfonated spiropyran

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Publisher
Springer Journals
Copyright
Copyright © 2009 by Springer Science+Business Media BV
Subject
Chemistry; Inorganic Chemistry ; Physical Chemistry ; Catalysis
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1007/s11164-009-0085-x
Publisher site
See Article on Publisher Site

Abstract

We prepared Zn–Al layered double hydroxide (LDH) thin films intercalated with sulfonated 1,3′,3′-trimethyl-6-nitrospiro[2H-chromene-2,2′-indoline] anions (SP-SO3 −) by immersion of sol–gel derived amorphous Al2O3–ZnO thin films in hot water containing SP-SO3H. Extended interlayer spacing, in comparison to the Zn–Al LDH with carbonate anions, was observed after immersion in distilled water containing SP-SO3H at 60 °C for 30 min, indicating that we formed Zn–Al LDH films with SP-SO3 − directly on glass substrates. The merocyanine form of SP-SO3 − was shown by UV spectra to have stabilized in the hydroxide layers of LDH.

Journal

Research on Chemical IntermediatesSpringer Journals

Published: Oct 10, 2009

References

  • Intercalation chemistry of layered double hydroxides: recent developments and applications
    Khan, AI; O’Hare, D
  • Spiropyrans and spirooxazines for memories and switches
    Berkovic, G; Krongauz, V; Weiss, V
  • Intercalation and photochromism of spiropyrans on clay interlayers
    Takagi, K; Kurematsu, T; Sawaki, Y

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