Direct Synthesis of a Bis(pyrazolyl)boratocopper(I) Complex:  Synthesis and Characterization of [H2B(3,5-(CF3)2Pz)2]Cu(PPh3)2 Displaying an Unusual Coordination Mode for a Poly(pyrazolyl)borate Ligand

The synthesis of [H2B(3,5-(CF3)2Pz)2]Cu(PPh3)2 from (PPh3)2CuBH4 and 3,5-(CF3)2PzH and the solid state structure featuring an essentially monodentate coordination of a bis(pyrazolyl)borate ligand are described.