Formation of [Ph2P5]+, [Ph4P6]2+, and [Ph6P7]3+ Cationic Clusters by Consecutive Insertions of [Ph2P]+ into P[BOND]P Bonds of the P4 Tetrahedron


  • We gratefully acknowledge the Alexander von Humboldt-Foundation (Feodor Lynen Return Fellowship for J.J.W.) and the FCI (Liebig scholarship for J.J.W.). J.J.W. thanks Prof. F. Ekkehardt Hahn (Münster) for his generous support and advice. The authors are indebted to and thank Jörg Stierstorfer (Munich) and Dr. Alexander Hepp for help with Raman and NMR measurements, respectively, and Dr. Robert Wolf for helpful discussions.


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Positively phosphorus: A solvent-free melt system (P4/Ph2PCl/GaCl3) represents a powerful medium for the functionalization of the P4 tetrahedron to form new cationic phosphorus-rich organophosphorus cage and cluster systems, such as [Ph2P5]+, [Ph4P6]2+, and [Ph6P7]3+ (see picture), by insertion of [Ph2P]+ into P[BOND]P bonds.