Physicists make the cover of Chemistry
Posted on 22/06/2016
TYC researchers Massimo Riello and Alessandro De Vita from King’s College London present the first example of thermally stable metal–organic framework based on ketone–metal coordination. The work originates from a long-running collaboration between the KCL Physics group and the groups of Giovanni Costantini (STM, Warwick University) and Davide Bonifazi (synthetic chemistry, Cardiff University).
Cu(111)-deposited pyrene 4,5,9,10-tetraone (PTO) molecules spontaneously form two-dimensional metal–organic nanostructures stabilized by molecular coordination with individual metallic atoms, occurring via their strongly electronegative ketone moieties. Crucially, the metal–organic nanostructures can be quenched to one-dimensional acicular phases (cf. journal cover image below) by co-depositing Fe atoms with PTO, exploiting the higher strength of the ketone–metal bond with Fe relative to the bond with native Cu linker atoms, a mechanism which the authors could fully rationalize by Monte Carlo and DFT simulations.
Read the Chemistry paper here.