Synthesis of a Cationic l,3-Diphospha-2,4-dipallada(II)tricyclo[ 1.1.1] pentane Derivative: The First Structurally Characterized Pyramidal μ+2-Phosphinidene

摘要

The phosphinidene fragment can give rise to six different types of complex A- F (Scheme 1). Recently, a few examples of stable η~1(bent) and η~1 (linear)-phosphinidene complexes (types A and B, respectively) have been reported. The μ_3,- and μ_4-phosphinidenes have been extensively used as building blocks for transition metal clusters (types C and D, respectively).