No abstract

SnTiO 3 was successfully synthesized for the first time in bulk form by soft chemistry. STEM and Rietveld refinement show that SnTiO 3 adopts a structure similar to the archetypical ilmenite-type structure, forming a honeycomb lattice of edge-sharing TiO 6 -octahedra, which are decorated with Sn 2+ . Given the formation of a van der Waals gap between the individual layers and hence close energetic minima of different stacking types, SnTiO 3 forms multiple stacking orders and twinning domains that we describe by systematic DIFFaX-simulations. The structure is governed by the tin lone pairs, which influence the stacking of the layers as well as local distortions observed by EELS and NMR, potentially leading to a wide range of applications.

A fast synthesis approach toward sub-60 nm sized MOF nanoparticles was developed by employing auxiliary additives. Control over the size of HKUST-1 and IRMOF-3 particles was gained by adjusting the concentration and type of stabilizers.Colloidal solutions of the MOFs were used for the formation of optically homogeneous thin films by spin-coating.