Crystal structure of dichlorido-1κCl,2κCl-(μ2-3,5-dimethyl-1H-pyrazolato-1κN2:2κN1)(3,5-dimethyl-1H-pyrazole-2κN2){μ-2-[(2-hydroxyethyl)amino-1κ2N,O]ethanolato-1:2κ2O:O}dicopper(II)

• Main Authors: Oleksandr S. Vynohradov, Vadim A. Pavlenko, Inna S. Safyanova, Kateryna Znovjyak, Sergiu Shova, Safarmamad M. Safarmamadov
• Format: Article
• Language: English
• Published: International Union of Crystallography 2020-09-01
• Series: Acta Crystallographica Section E: Crystallographic Communications
• Subjects: copper; copper complexes; crystal structure; pyrazole; diethanolamine; x-ray crystallography; aminoalcohol ligand
• Online Access: http://scripts.iucr.org/cgi-bin/paper?S2056989020011184

The title compound, [Cu2(C5H7N2)(C4H10NO2)Cl2(C5H8N2)], is a pyrazolate aminoalcohol complex which contains two dimethylpyrazole molecules in monodentate and bidentate-bridged coordination modes and a monodeprotonated diethanolamine molecule. Both copper atoms are involved in the formation of non-planar five-membered chelate rings. One Cu atom is in a distorted tetrahedral environment formed by the pyridine nitrogen atom of the protonated dimethylpyrazole molecule, the N atom of the deprotonated bridged dimethylpyrazole, the Cl atom and the bridged O atom of the monodeprotonated diethanolamine. The second Cu atom has an intermediate environment between trigonal bipyramidal and square pyramidal, formed by the N atom of the deprotonated bridged dimethylpyrazole, the Cl atom and the N atom of the aminoalcohol, and two O atoms of the deprotonated and protonated OH groups. In the crystal, N—H...Cl hydrogen bonds link the molecules into antisymmetric chains running along the a-axis direction. Adjacent chains are connected by O—H...O hydrogen bonds involving the hydroxyl group as donor.