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New red-luminescent cadmium coordination polymers with 4-amino-2,1,3-benzothiadiazole

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posted on 2016-09-02, 21:29 authored by T. S. Sukhikh, D. S. Ogienko, D. A. Bashirov, N. V. Kuratieva, V. YU. Komarov, M. I. Rakhmanova, S. N. Konchenko

New polymeric cadmium complexes, α-[CdLCl2]n (1), [CdL2Cl2]n (2) and β-[CdLCl2]n (3) (L = 4-amino-2,1,3-benzothiadiazole), were obtained as products of the reaction of CdCl2 with L. The synthetic procedures allowing isolation of pure 13 were optimized. The structures of 13 were established by single-crystal X-ray diffraction and the compounds were characterized by UV–Vis and IR spectroscopy. In these compounds, L is either μ-bridging (1) or terminal (2 and 3). The UV–Vis spectra of the complexes in the solid state resemble that of free L. However, coordination of L leads to a significant shift of emission in photoluminescence spectra from yellow (free L) to red (13).

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