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Synthesis,crystal structure,and electroluminescent properties of zinc and cadmium tetradentate azomethine complexes |
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| Authors: | A S Burlov V G Vlasenko D A Garnovskii N V Polosareva A S Antsyshkina G G Sadikov V S Sergienko A V Churakov Ya V Zubavichus E I Mal’tsev A V Dmitriev D A Lypenko A S Cheprasov G S Borodkin A V Metelitsa |
| Institution: | 1. Research Institute of Physical and Organic Chemistry, Southern Federal University, pr. Stachki 194/2, Rostov-on-Don, 344090, Russia 2. Research Institute of Physics, Southern Federal University, pr. Stachki 194, Rostov-on-Don, 344090, Russia 3. Southern Scientific Center, Russian Academy of Sciences, ul. Chekhova 41, Rostov-on-Don, 344006, Russia 4. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskii pr. 31, Moscow, 117907, Russia 5. National Research Centre “Kurchatov Institute”, pl. Akademika Kurchatova 1, Moscow, 123182, Russia 6. Frumkin Institute of Electrochemistry, Russian Academy of Sciences, Leninskii pr. 31, Moscow, 117071, Russia |
| Abstract: | Chemical and electrochemical syntheses of zinc(II) and cadmium(II) complexes based on tetradentate Schiff bases (H2L1 and H2L2) resulting from condensation of 2-tosylaminobenzaldehyde with 3,6-dioxa-1,8-octanediamine or 4,9-dioxa-1,12-dodecanediamine were performed. The structure, composition, and properties of the complexes were studied by elemental analysis, IR, 1H NMR, and UV spectroscopy, X-ray absorption spectroscopy, and X-ray diffraction. The zinc(II) and cadmium(II) complexes luminesce in a DMF solution in the blue spectral region (λPL = 425–433 nm), the photoluminescence quantum yield φ being 0.25–0.30. Multilayer zinc(II)- and cadmium(II)-based electroluminescent structures with green-blue emission of the exciplex nature were fabricated. |
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