Pentacoordinated and hexacoordinated compounds

The chemistry of penta- and hexacoordinated compounds continues to expand in its breadth and application. In this context, the synthesis, properties and structural investigations of novel cage-phosphoranes, metallophosphoranes, phosphanes and azaphosphatranes have been briefly described. Pentacoordinated phosphoranes have been also postulated as intermediates in prodrugs activation pathway or hydrosilylation of ketones. Moreover, studies on novel hexacoordinated phosphates as well as phosphorus-based corolles have been reported.