Synthesis and molecular structure of [{Pd2(CH2C6H4P(o-tolyl)2-κC,P)2(µ3-3,5-dmpz-N,N′,C4)2Ag(µ-ClO4)}2] (3,5-dmpz = 3,5-dimethylpyrazolato), a silver derivative showing unprecedented η1-azolato coordination

Abstract

The reaction of [Pd₂(CH₂C₆H₄P(o-tolyl)₂-κC,P)₂(µ-3,5-dmpz)₂] (1) with AgClO₄ renders [{Pd₂(CH₂C₆H₄P(o-tolyl)₂-κC,P)₂(µ₃-3,5-dmpz-N,N′,C⁴)₂Ag(η²-µ-ClO₄)}₂] (2), a palladium–silver derivative displaying an unprecedented dmpz bridging ligand η¹ bonded to the Ag centers, involving only the C⁴ atom of each dmpz ligand.