具有噻吩二氧化物二基作为偶极转子的粉末状分子陀螺的介电弛豫。
Dielectric Relaxation of Powdered Molecular Gyrotops Having a Thiophene Dioxide-diyl as a Dipolar Rotor.
机构信息
Division of Applied Chemistry , Faculty of Urban Environmental Sciences, Tokyo Metropolitan University , 1-1 minami-Osawa , Hachioji, Tokyo 192-0397 , Japan.
Research and Analytical Center for Giant Molecules, Graduate School of Science, Tohoku University , Aoba-ku, Sendai 980-8578 , Japan.
出版信息
Org Lett. 2018 Nov 2;20(21):6934-6937. doi: 10.1021/acs.orglett.8b03087. Epub 2018 Oct 22.
The dielectric properties of powdered molecular gyrotops with a thiophenedioxide-diyl are reported. Crystals without a solvent molecule show usual dielectric relaxation spectra due to orientation polarization of the dipolar rotor, while a crystal having ethanol as the crystalline solvent molecule showed novel temperature-dependent dielectric relaxation switching by crystal-to-crystal phase transition, which is induced by hydrogen-bonding interactions between thiophene dioxide and ethanol.
报道了具有噻吩二氧二基的粉状分子陀螺的介电性能。无溶剂分子的晶体显示出由于偶极转子的取向极化引起的通常介电弛豫谱，而具有乙醇作为结晶溶剂分子的晶体通过氢键相互作用引起的晶-晶相转变表现出新颖的温度依赖介电弛豫开关，噻吩二氧和乙醇之间的相互作用。
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