Films of 2-methylbenzimidazole perchlorate C8H8N2-HClO4: phase transformations, crystal structure and dielectric properties
Balashova E. V. 1, Levin A. A. 1, Krichevtsov B. B. 1
1Ioffe Institute, St. Petersburg, Russia
Email: balashova@mail.ioffe.ru, aleksandr.a.levin@mail.ioffe.ru, boris@mail.ioffe.ru

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Films of the semi-organic compound 2-methylbenzimidazole perchlorate, MBI· HClO4, were grown by evaporation at room temperature from an aqueous solution of MBI· HClO4 on quartz glass and sapphire substrates. The results of temperature changes in capacitance, dielectric losses and conductivity of films with simultaneous registration of phase transformations using a polarizing microscope, as well as the results of X-ray diffraction measurements of the crystal structure of MBI · HClO4 films before and after melting and crystallization are presented. Keywords: phase transformations, crystal structure, dielectric properties, ionic liquids, semi-organic crystals.
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