journal menu
metal-organic compounds
Open 
access
access
In the mononuclear title salt, (C5H6N)2[Cu(C5H2N2O4)2(H2O)2]·2H2O, the CuII ion is located on an inversion centre and is coordinated by two chelating pyrazole-3,5-dicarboxylate anions and two water molecules, forming a Jahn–Teller-distorted CuN2O4 octahedron. O—H
O and N—HO hydrogen bonds are formed between water molecules, complex anions and the pyridine counter-cations, leading to the formation of layers parallel to (100). The layers are held together by weak C—HO hydrogen bonds.
O and N—HO hydrogen bonds are formed between water molecules, complex anions and the pyridine counter-cations, leading to the formation of layers parallel to (100). The layers are held together by weak C—HO hydrogen bonds.
