Structural Isomerization and Cold Crystallization of Bis[1-(2-propyl)iminomethylnaphthalen-2-olato]nickel(II) by Thermal Analysis, X-ray Diffraction, and FT-IR
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- Iwase Katsunori
- Department of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba DENSO CORPORATION
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- Yoshikawa Isao
- Institute of Industrial Science, The University of Tokyo
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- Houjou Hirohiko
- Institute of Industrial Science, The University of Tokyo
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- Yamamura Yasuhisa
- Department of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba
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- Saito Kazuya
- Department of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba
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Abstract
Two coordination isomers, i.e., square planar and pseudo-tetrahedral forms of the title compound, were crystallographically identified and discussed in relation to their thermal behavior revealed by XRD-DSC and FTIR-DSC. Upon the fusion, the coordination geometry partly changes, resulting in the liquid, which is an equilibrium mixture of molecules with the two coordination geometries. In this system, the mixed nature of liquid, in addition to molecular flexibility, is responsible for realization of large supercooling and glass transition, both of which enables the cold crystallization.
Journal
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- Bulletin of the Chemical Society of Japan
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Bulletin of the Chemical Society of Japan 88 (7), 989-995, 2015
The Chemical Society of Japan
