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NotificationsNotify me of updates to Wavelength Dependence of Polarized UV Light Induced Supramolecular Orientation of Azobenzene-Containing Organic/Inorganic Hybrid Materials of Chiral Schiff Base Ni(II), Cu(II), and Zn(II) Complexes (pp. 117-136)
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Wavelength Dependence of Polarized UV Light Induced Supramolecular Orientation of Azobenzene-Containing Organic/Inorganic Hybrid Materials of Chiral Schiff Base Ni(II), Cu(II), and Zn(II) Complexes (pp. 117-136) $0.00
Authors:  (Nobumitsu Sunaga, Chigusa Kominato, Naoya Ishida, Maiko Ito, Takashiro Akitsu, Taro Konomi, and Masahiro Katoh, Department of Chemistry, Faculty of Science, Tokyo University of Science, Kagurazaka, Shinjuku-Ku Tokyo, Japan, and others)
Abstract:
We have synthesized nine organic/inorganic hybrid materials in
polymethylmethacrylate (PMMA) cast films composed of azo-groups
containing diasteromers of Schiff base Ni(II), Cu(II) and Zn(II)
complexes and azobenzene and chiral Schiff base Ni(II), Cu(II) and
Zn(II) complexes. Linearly or circularly polarized UV light-induced
molecular orientation of the components was investigated as increasing
optical anisotropy with polarized UV-vis or IR spectroscopy or
supramolecular chiral alignment with CD spectroscopy. By comparing
experimental and simulated (TD-DFT) UV-vis spectra, reliable
assignment of spectral bands was obtained to discuss effective light
absorption for Weigert effect. Furthermore, differences of CD bands
before and after circularly polarized light UV irradiation suggested chiral
molecular ordering, which was induced differently by using continuous
(below 350 nm) or selective wavelengths (260, 318, and 380 nm) UV
light. 


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Wavelength Dependence of Polarized UV Light Induced Supramolecular Orientation of Azobenzene-Containing Organic/Inorganic Hybrid Materials of Chiral Schiff Base Ni(II), Cu(II), and Zn(II) Complexes (pp. 117-136)