Abstract
A simple scheme for preparation of europium hydrogen squarate octahydrate microcrystals, Eu(HSq)3·8H2O is demonstrated. The microcrystalline powders obtained have a potential application as non-centrosymmetric and UV radiation – protective hybrid optical material. The site-symmetry of the Eu – ion is C2V or lower, obtained from diffuse reflectance spectra. The formation of europium hydrogen squarate is supported by IR – spectroscopy, UV–vis spectroscopy, chemical analysis and X-ray diffraction. A detailed analysis of the UV–vis and IR spectra of the micropowders prepared is presented.
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