Abstract
Dinuclear pyrazolate-bridged Pd(II) complex [Pd(μ-pz)(pzH) 2] 2(BF 4) 2 has been prepared by treatment of pyrazole (pzH), sodium ethoxide, and [Pd(CH 3CN) 4](BF 4) 2. The new complex has been characterised by elemental analyses, IR, 1H NMR, 13C{ 1H} NMR, and single crystal X-ray diffraction methods. This structure shows two palladium atoms bridged by two pyrazolate ligands. The square-planar geometry of each Pd atom is completed by two pyrazole ligands. The six-membered dipalladacycle formed by the two Pd atoms and the two bridging pyrazolate ligands adopt a distorted boat-like conformation. This compound is the first example of a dinuclear Pd(II)–pyrazolate homoleptic complex.
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