Photochromic Properties of a Spirooxazine and a Spiropyran in Alcoholic Solutions of Zirconium and Aluminium Alkoxides: Influence of the Ethyl Acetoacetate Chelating Agent on the Optical Properties | Zendy

Lafuma Aurélie | Zendy; ChodorowskiKimmes Sandrine | Zendy; Quinn Francis X. | Zendy; Sanchez Clément | Zendy

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Photochromic Properties of a Spirooxazine and a Spiropyran in Alcoholic Solutions of Zirconium and Aluminium Alkoxides: Influence of the Ethyl Acetoacetate Chelating Agent on the Optical Properties

Author(s) -

Lafuma Aurélie,

ChodorowskiKimmes Sandrine,

Quinn Francis X.,

Sanchez Clément

Publication year - 2003

Publication title -

european journal of inorganic chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.667

H-Index - 136

eISSN - 1099-0682

pISSN - 1434-1948

DOI - 10.1002/ejic.200390045

Subject(s) - photochromism , chemistry , spiropyran , aluminium , ethyl acetoacetate , chelation , alkoxide , zirconium , denticity , inorganic chemistry , metal , photochemistry , polymer chemistry , organic chemistry , catalysis

The photochromism of two spiro compounds, a spiropyran and a spirooxazine, dissolved in alcoholic solutions of metal alkoxides M(OR) n (M = Zr, Al) has been studied. In the case of the aluminium alkoxide Al(O s Bu) 3 , special photochromic behaviour is observed characteristic of complexation between the coloured form of the dyes and the aluminium. This chemical interaction induces a considerable shift in the absorption spectra and a significant retardation rate in the dark. Addition of ethyl acetoacetate, a bidentate chelate of aluminium, leads to the disappearance of this particular photochromic behaviour. (© Wiley‐VCH Verlag GmbH & Co KGaA, 69451 Weinheim, Germany, 2003)

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