Unprecedented preparation of a unique 2D multinuclear copper metal-tetrazole polymer by in situ solvothermal reaction: Crystal structure and magnetic property

A novel coordination complex {[Cu14(pytz)8(CN)10(H2O)2]·H2O}n (1, Hpytz = 5-(2-pyridyl)-2H-tetrazole) has been synthesized by the hydrothermal reaction of Cu(NO3)2 with Hpytz ligand in mixed CH3CN/H2O solution under 150 °C. The cyanide may be generated in situ from the C–C cleavage of acetonitrile under hydrothermal conditions. Complex 1 consists of an infinite 2D network with CN− and pytz− ligand bridges. Magnetic susceptibility measurement indicates that 1 shows antiferromagnetic interaction between the adjacent Cu(II) ions.