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Information × Registration Number 0220U100051, 0119U100342 , R & D reports Title Spectrum heterometal complexes and their composites as multifunctional materials-switches. popup.stage_title Head Гуральський Ілля Олександрович, Registration Date 08-01-2020 Organization Taras Shevchenko National University of Kyiv popup.description2  Object of study: Ferro (II) heterocyanometallic coordination compounds characterized by the spin transition phenomenon are composites based on them. Purpose: To create new heterocyanometallic complexes and materials based on them with a wide range of spin transition characteristics. Research methods: X-ray diffraction of single crystals and powders, magnetometry, optical microscopy, Mössbauer and IR spectroscopy, calorimetry and mass spectrometry. Results of the study: new ferro-containing cyanoheterometer metal complexes with spin transition based on 1,6-naphthyridine composition [Fe (1,6-naphthy) 2 (Ag (CN) 2) 2] and pyridazine complexes of general formula [Fe (pdz) 2M (CN) 4] (where M = Ni, Pd, Pt). The crystal structures of all the obtained complexes were determined by X-ray diffraction. The change in the spin state during the spin transition was monitored by Mössbauer spectroscopy, which allowed us to determine the degree of oxidation and spin state of the metal center. Conducting magnetic and optical studies confirmed the presence of a spin transition and allowed us to determine the transition temperatures. Using calorimetric studies, the thermal effects that accompany the spin transition in the obtained materials are calculated. Product Description popup.authors Giyuk Volodymyr M. Gural'skiy Illya О. Naumova Dina D. Partsevska Sofiia V. Sirenko Valeriy Yu. popup.nrat_date 2020-04-02 Close