Abstract

A novel Cu/Pd heterometallic cyanide-bridged complex of 3-methylpyridazine (3-mpdz), [Cu(3-mpdz)2Pd(µ-CN)4]n, was synthesized and its structure was characterized by FT-IR, Raman, single-crystal X-ray diffraction and thermal/elemental analysis techniques. The conformers, optimized geometric parameters, normal mode frequencies and corresponding vibrational assignments of the complex were examined by means of the density functional theory method, the Becke-3–Lee–Yang–Parr (B3LYP) functional and the LANL2DZ basis set. Reliable vibrational assignments were investigated by the potential energy distribution analysis. The complex crystallizes in the triclinic space group P-1 with the unit cell parameters a = 6.6836(4) A, b = 7.7777(5) A, c = 8.9009(6) A, α = 113.573(5)°, β = 94.565(6)° and γ = 92.437(5)°. There is a good interplay between experimental and theoretical findings to understand the complex at molecular level. The synthesised complex with potential industrial applications will add to the literature of the cyanide-bridged tetracyanometallates.

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