Title
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
Author
Hiroshi Takano, Masahiro Takase, Nobumitsu Sunaga, Maiko Ito, Takashiro Akitsu
Year
2016
Journal
Inorganics
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 PMMAresulted in easy molecular orientation (Ni > Cu > Zn) as short-term saturation of the UV light irradiation.
Full Article
Instrument
J-725
Keywords
Circular dichroism, Inorganic chemistry,