A straightforward synthesis of cationic nitrile ligated transition metal complexes with the [B(C6F5)4]− Anion

A straightforward synthesis of cationic nitrile ligated transition metal complexes with the [B(C6F5)4]− Anion: "Publication year: 2011
Source: Journal of Organometallic Chemistry, In Press, Accepted Manuscript, Available online 13 February 2011
Silvana F., Rach , Eberhardt, Herdtweck , Fritz E., Kühn
Nitrile ligated transition metal complexes bearing polyfluorinated tetra(aryl)borates as counter anions are highly active initiators/mediators for various polymerization reactions. However, the methods for their preparation are still far too inefficient for widespread use in applied research or in industry. Accordingly, an improved synthesis for two of the most promising species in this assemblage of complexes, namely [Cu(C6H5CN)5][B(C6F5)4]2 and [Zn(CH3CN)4/6][B(C6F5)4]2, has been developed. This route provides easy access to pure products on a gram scale, by the reaction of copper(II)acetate and diethyl zinc with [H(OEt2)2][B(C6F5)4]. Additionally, a new route for the synthesis of the oxonium acid as precursor has been developed,..."