Two (AgI3I)4L4 cages elucidate the rules for silver-cluster vertex design
Andrew W. Heard, Samuel E. Clark, Charlie T. McTernan, Tanya K. Ronson, Petr Rozhin, Barbara Rossi, Silvia Marchesan, Jonathan R. Nitschke
Abstract
Here, we report two (Ag I 3 I) 4 L 4 metal-organic cages that each contain a previously unobserved trisilver(I) iodide cluster at their vertices. Clusters containing fewer than 10 Ag I ions are challenging to synthesize in an atomically precise manner. Previous work has demonstrated the potential of the approach of generating such clusters during the formation of higher-order metal-organic cage superstructures, but too few examples were known for design principles to be deciphered. Through analysis of the set of such cages reported herein and previously, we elaborate a set of design principles for their synthesis.