Spectral and photochromic study of spiropyran
- School of Chemical Sciences and Food Technology, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor Darul Ehsan (Malaysia)
A new class of benzospiropyran has been synthesized by the condensation of the precursor, Fisher basespiropyran with substituted salicyaldehydes in 1:1 mole ratios. This photochromic compound, spiro [2H-1-benzopyran-2, 2’-(8’-hydroxy-1’, 3’, 3’-trimethylindoline)] was able to undergo convertion into its merocyanine form (colored) after being induced by irradiation of UV light. Both open and closed form of benzospiropyran were characterized and distinguished based on Infrared vibracional spectroscopy in Attenuated Total Reflexion mode (ATR) and UV-vis spectroscopy. In addition, association of ten different metal ions to ethanol solution of SP (A) leads to metal-ion binding by the MC isomer. The coupled reaction of all metal ions, MC-M{sup 2+} underwent a hypsochromic and bathochromic shift in the absorption bands.
- OSTI ID:
- 22262652
- Journal Information:
- AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1571; ISSN APCPCS; ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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