Metallo- and ionochromic study of spiropyran as a multiresponsive sensor in liquid and solid state

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1 Citation (Scopus)

Abstract

Manipulation of the photo, iono and metallochromic properties for chelating activity was performed on the chosen spiropyran. Benzospiropyran was synthesised using one-step reaction of substitute dihydroxyl benzaldehyde and Fisher base derivative. This responsive spiro [2H-1-benzopyran-2, 2’-(8’-hydroxy-1’, 3’, 3’-trimethylindoline)] was able to undergo conversion in solution from colourless to coloured form when reacted with metal and adjustment of pH. In metallochromic activity, all divalent metal ions exhibited a strong absorption peak range from 400 to 460 nm due to the new formation of complex merocyanine-metal (MC-M). These remarkable metallochromic effects were able to detect up to 1 × 10-1 M (detection limit) of each metal ion. For ionochromic activity, acidic environment was preferred for isomerisation to occur. Lastly, spiropyran was also immobilised within the poly(methyl) methyacrylate (PMMA) polymer to investigate its functionality in other forms.

Original languageEnglish
Pages (from-to)3816-3821
Number of pages6
JournalInternational Journal of ChemTech Research
Volume6
Issue number7
Publication statusPublished - 2014

Fingerprint

Metal ions
Benzopyrans
Sensors
Liquids
Isomerization
Metal complexes
Chelation
Polymers
Metals
Derivatives
spiropyran
merocyanine
benzaldehyde
1-(beta-carboxyethyl)-3,3-dimethyl-6'-nitrospiro(indoline- 2,2'-2H-benzopyran)

Keywords

  • Liquid
  • Metal
  • Responsive
  • Solid
  • Spiropyran

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Chemistry(all)

Cite this

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title = "Metallo- and ionochromic study of spiropyran as a multiresponsive sensor in liquid and solid state",
abstract = "Manipulation of the photo, iono and metallochromic properties for chelating activity was performed on the chosen spiropyran. Benzospiropyran was synthesised using one-step reaction of substitute dihydroxyl benzaldehyde and Fisher base derivative. This responsive spiro [2H-1-benzopyran-2, 2’-(8’-hydroxy-1’, 3’, 3’-trimethylindoline)] was able to undergo conversion in solution from colourless to coloured form when reacted with metal and adjustment of pH. In metallochromic activity, all divalent metal ions exhibited a strong absorption peak range from 400 to 460 nm due to the new formation of complex merocyanine-metal (MC-M). These remarkable metallochromic effects were able to detect up to 1 × 10-1 M (detection limit) of each metal ion. For ionochromic activity, acidic environment was preferred for isomerisation to occur. Lastly, spiropyran was also immobilised within the poly(methyl) methyacrylate (PMMA) polymer to investigate its functionality in other forms.",
keywords = "Liquid, Metal, Responsive, Solid, Spiropyran",
author = "Rumaisa Nordin and Arip, {M. Nasir M} and Hasbullah, {Siti Aishah} and {Abd Karim}, {Nurul Huda} and {Mat Lazim}, {Mohamad Azwani Shah}",
year = "2014",
language = "English",
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journal = "International Journal of ChemTech Research",
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AU - Nordin, Rumaisa

AU - Arip, M. Nasir M

AU - Hasbullah, Siti Aishah

AU - Abd Karim, Nurul Huda

AU - Mat Lazim, Mohamad Azwani Shah

PY - 2014

Y1 - 2014

N2 - Manipulation of the photo, iono and metallochromic properties for chelating activity was performed on the chosen spiropyran. Benzospiropyran was synthesised using one-step reaction of substitute dihydroxyl benzaldehyde and Fisher base derivative. This responsive spiro [2H-1-benzopyran-2, 2’-(8’-hydroxy-1’, 3’, 3’-trimethylindoline)] was able to undergo conversion in solution from colourless to coloured form when reacted with metal and adjustment of pH. In metallochromic activity, all divalent metal ions exhibited a strong absorption peak range from 400 to 460 nm due to the new formation of complex merocyanine-metal (MC-M). These remarkable metallochromic effects were able to detect up to 1 × 10-1 M (detection limit) of each metal ion. For ionochromic activity, acidic environment was preferred for isomerisation to occur. Lastly, spiropyran was also immobilised within the poly(methyl) methyacrylate (PMMA) polymer to investigate its functionality in other forms.

AB - Manipulation of the photo, iono and metallochromic properties for chelating activity was performed on the chosen spiropyran. Benzospiropyran was synthesised using one-step reaction of substitute dihydroxyl benzaldehyde and Fisher base derivative. This responsive spiro [2H-1-benzopyran-2, 2’-(8’-hydroxy-1’, 3’, 3’-trimethylindoline)] was able to undergo conversion in solution from colourless to coloured form when reacted with metal and adjustment of pH. In metallochromic activity, all divalent metal ions exhibited a strong absorption peak range from 400 to 460 nm due to the new formation of complex merocyanine-metal (MC-M). These remarkable metallochromic effects were able to detect up to 1 × 10-1 M (detection limit) of each metal ion. For ionochromic activity, acidic environment was preferred for isomerisation to occur. Lastly, spiropyran was also immobilised within the poly(methyl) methyacrylate (PMMA) polymer to investigate its functionality in other forms.

KW - Liquid

KW - Metal

KW - Responsive

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