Ligand Exchange and Pyrazole Deprotonation in the Reaction of Trinuclear Palladium(II) Acetate with Binuclear Zinc Pivalate Pyrazole Pyrazolate

The reaction of Pd3(OOCMe)6 with Zn2(µ-Dmpz)2(HDmpz)2(OOCtBu)2 (HDmpz is 3,5-dimethylpyrazole) in dichloromethane at room temperature induces ligand exchange, accompanied by deprotonation of zinc-coordinated pyrazole to give heterocarboxylate 1D coordination polymer [Zn2(µ-OOCMe)(µ-OOCtBu)3]n (I) and 1,4-dioxane-solvated trinuclear complex Pd3(µ-Dmpz)6⋅C4H8O2 (II). Compounds I and II were studied by chemical analysis, IR spectroscopy, and X-ray diffraction (CIF files CCDC no. 2076508 (I) and no. 2076509 (II) respectively).