Pentakis trimethyl phosphite nickel II Bis tetraphenylborate

The reaction is carried out at room temperature in a hood. A 500-mL filter flask is equipped with a stirring bar coated with Teflon, and a slow stream of 

The yellow powder is fairly stable in air, but solutions are less stable. The compound is soluble in acetone and dichloromethane, insoluble in hydrocarbons, tetrahydrofuran and alcohols. The complex displays a 31P 1H nmr spectrum that is a single line in fast exchange and an A2B3 spin system in slow exchange.48 

PdCl2 + 5P(OCH3)3 + 2Na[BPh4]---- [Pd[P(OCH3)3]s] [BPhJj +2 NaCl 

The platinum complex is reasonably air stable, but the palladium complex is moderately air sensitive, turning to a black powder overnight if stored in air. Their solubilities are similar to those of the nickel analogue. There is a tendency for both the palladium and platinum complexes to lose a phosphite ligand on recrystallization. 

Recrystallization in the presence of a slight excess of phosphite can make purification more straightforward. 

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