Structural Properties of a Dimeric Phenylcyanamidocopper(I) Complex, [{Cu(PPh3)2(C6H5NCN)}2]

Abstract

The X-ray crystal structure determination of bis[-(phenylcyanamido)bis(triphenylphosphine)copper(I)], [{Cu(PPh₃)₂(C₆H₅NCN)}₂], (1) is reported. The complex has a centrosymmetric dimeric structure with the phenylcyanamide ligands bridging the copper atoms in a -1,3-fashion. The structure is compared with that of the 4-methylphenylcyanamido complex, [{Cu(PPh₃)₂(4-MeC₆H₄NCN)}₂] (2), and the differences observed in the Cu–P bond lengths compared with changes in the solid state ³¹P cross-polarization magic-angle spinning (CPMAS) spectra of the two complexes.