Abstract
The reactivity of carboranyldiphosphines towards palladium (II) complexes and the modifications that take place on the cluster are studied in this work. The reaction of aryl, alkyl or alkoxy substituted closo-carboranyldiphosphines with palladium (II) complexes [PdCl 2L 2] (L=PPh 3, PMePh 2, PhCN) in ethanol, yields products in which partial degradation of the carborane cage has taken place and total or partial substitution of the chlorine atoms of the initial palladium (II) complex has been observed. The final stoichiometry depends on the steric characteristics of the ligand, their basicity and the starting Pd(II) complex. The crystal structure of [Pd 2( μ-Cl) 2{7,8-(P i Pr 2) 2-7,8-C 2Bq 9H 10} 2] the third structurally characterized example of a bis chloride bridged palladium complex with phosphines has been determined.
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