Crystal structure of bis­­{μ-2-[bis­­(2-hy­dr­oxy­eth­yl)amino]­ethano­lato}bis­­(μ-3,5-di­methyl­pyrazolato)tricopper(II) dibromide sesquihydrate

In the title bicyclic trinuclear pyrazolate amino­alcohol complex, [Cu3(C5H7N2)2(C6H14NO3)2]Br2·1.5H2O, the central Cu atom lies on a center of symmetry and is involved in the formation of two five-membered rings. It has a coordination number of 4, is in a distorted tetra­hedral environment and is connected by the bridging oxygen atoms of the deprotonated OH groups of different amino­alcohol groups, and by the N atoms of deprotonated di­methyl­pyrazole ligands. The peripheral Cu atom is in a trigonal–bipyramidal coordination environment formed by the nitro­gen atom of the deprotonated bridging di­methyl­pyrazole unit, the bridging oxygen atom of the deprotonated OH group, two oxygen atoms of the protonated hy­droxy groups and the nitro­gen atom of tri­ethano­lamine. One of the C atoms and the Br− anion were found to be disordered over two positions with occupancy factors of 0.808 (9):0.192 (9) and 0.922 (3):0.078 (3), respectively.