DOI: https://doi.org/10.29363/nanoge.dynamic.2023.012
Publication date: 15th February 2023
While framework materials such as MOFs and coordination polymers are often represented as possessing highly-crystalline, ordered structures, in practice many such systems are actually very disordered — and sometimes in particularly interesting ways. Our own interest is in understanding the various kinds of correlated (i.e. non-random) disorder that emerge in framework materials, with the view of learning how to link disorder to different kinds of materials properties. The key experimental tool we use is that of diffuse scattering measurements (X-ray and neutron; powder and single-crystal), and we couple these measurements with simple simulations that help capture the key physics at play. In this talk, I will summarise our recent work with three disordered framework structures: Cd(CN)2 [1], DUT-8(Ni) [2], and TRUMOF-1 [3]. In each case there is an unusual interplay between structural disorder and dynamical or elastic phenomena, and these various relationships will be introduced and discussed. The talk is likely to present more questions than answers.
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