Template-Directed Assembly of Polyoxothiometalate Scaffolds into Nanomolecular Architectures


  • We thank the EPSRC, the Chinese Scholarship Council, WestCHEM, and the University of Glasgow for supporting this work. L.C. thanks the Wolfson Foundation & Royal Society of London for a merit award. We thank Dr. Jun Yan for help with the structure solutions, Dr. Phil Kitson for the movie showing the self-assembly and Dr. Roy McBurney for useful comments.


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A new family of nanomolecular clusters was obtained by using the squarate anion as a template for the self-assembly of [Mo2O2S2(H2O)6]2+ (A) with the structure-directing anion [Mo5O18]6− (B) whose geometry dictates the formation of the polyoxothiometalate building blocks [(Mo2O2S2)3(OH)4(C4O4)] and [(Mo2O2S2)2(OH)2(C4O4)]. A gradual evolution in both symmetry and structural completeness is observed upon traversing the generations of the POMcycle family.