Pre-arranged building block approach for the orthogonal synthesis of an unfolded tetrameric organic–inorganic phosphazane macrocycle

Abstract

Hybrid organic–inorganic phosphazane macrocycles have been studied for their potentially useful host–guest chemistries, but synthetic routes capable of controlling their size have yet to be reported. Here, a two-step route that exploits pre-arranged building blocks enables the design of an unfolded tetrameric macrocycle.