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Inorganics 2016, 4(3), 20; doi:10.3390/inorganics4030020

The Viscosity and Intermolecular Interaction of Organic and Inorganic Hybrid Systems Composed of Chiral Schiff Base Ni(II), Cu(II), and Zn(II) Complexes with Long Ligands, Azobenzene, and PMMA

Department of Chesmitry, Faculty of Science, Tokyo University of Science, Tokyo 162-8601, Japan
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Author to whom correspondence should be addressed.
Academic Editor: Duncan H. Gregory
Received: 2 June 2016 / Revised: 21 June 2016 / Accepted: 21 June 2016 / Published: 27 June 2016
(This article belongs to the Special Issue Traversing the Boundaries of Inorganic Chemistry)
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Abstract

We have here synthesized new chiral Schiff base Ni(II), Cu(II), Zn(II) complexes (Ni, Cu, Zn) and hybrid materials with azobenzene (AZ) in polymethyl methacrylate (PMMA). Linearly polarized UV light irradiation of these hybrid materials slightly increased their optical anisotropy of AZ as well as the complexes, which were measured with polarized IR and UV-Vis spectra and discussed based on TD-DFT calculations. Non-linear concentration (viscosity) dependence of PMMA solutions about artifact peaks suggested weak intermolecular interactions due to the flexibility of complexes by inserted methylene chains. Molecular modeling indicated that large spaces around complexes in PMMA resulted in easy molecular orientation (Ni > Cu > Zn) as short-term saturation of the UV light irradiation. View Full-Text
Keywords: PMMA; azobenzene; Schiff base complexes; viscosity; polarized light; Weigert effect PMMA; azobenzene; Schiff base complexes; viscosity; polarized light; Weigert effect
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Takano, H.; Takase, M.; Sunaga, N.; Ito, M.; Akitsu, T. The Viscosity and Intermolecular Interaction of Organic and Inorganic Hybrid Systems Composed of Chiral Schiff Base Ni(II), Cu(II), and Zn(II) Complexes with Long Ligands, Azobenzene, and PMMA. Inorganics 2016, 4, 20.

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