Synthesis and the crystal structures of double complexes of copper(II) and cobalt(II) with tris(3,5-dimethylpyrazol-1-yl)methane

Add time:07/27/2019    Source:sciencedirect.com

Novel coordination compounds of Cu(II) with tris(3,5-dimethylpyrazol-1-yl)methane (HC(3,5-me2pz)3) such as [Cu(HC(3,5-me2pz)3)2][CuCl4]·2H2O (I) and [Cu(HC(3,5-me2pz)3)2][Cu2Br6]·4H2O (II), have been synthesized. These compounds were studied by IR and electronic (SDR) spectroscopy. It has been shown, that single crystal formation of complexes in acid media are coupled with the processes of ligand hydrolysis and the formation of halo- and aquacomplexes. The crystal and molecular structures of compounds ((3,5-me2pzH)2[Cu(HC(3,5-me2pz)3)2][CuCl4]2 (III) (here 3,5-me2pzH is 3,5-dimethylpyrazolium), [Cu(HC(3,5-me2pz)3)2][Cu2Br6] (IV) and [Co(HC(3,5-me2pz)3)2][Co(H2O)Cl3]2 (V), were determined by means of single-crystal X-ray diffraction analysis.

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