Abstract
The addition of the ligand NPm (diphenylphosphino diphenylamino methane) to the Na[AuCl 4] salt reduced by thiodiglycol or directly to Ph 3PAuCl leads to the same product of general formula (NPm) 2AuCl. The structure of this complex has been determined by X-ray crystallography. The colorless orthorhombic compound crystallizes in the space group Fdd 2, Z = 8, a = 24.941(4), b = 32.576(4), c = 10.299(1) Å, with R and R w values of 2.5 and 2.0%, respectively. The ligand is P-bonded to gold. The ionic or covalent character of the AuCl bond is discussed in regard to the bond length and the conductivity data. 31P NMR solution studies are reported.
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