The main goal of solid-state chemistry is the synthesis and characterisation of new compounds with technologically exploitable properties. To this aim, one established chemical route is the modification of known inorganic materials, in most cases oxides, via substitution or insertion of cations different from the original makeup. An alternative, and less frequently adopted, approach is the manipulation of the anion sublattice to yield mixed-anion materials. Recent examples of materials with structural and physical properties tunable via both anionic and cationic substitutions are bringing more attention to the potential of this approach as an alternative and/or complementary chemical approach to cationic modifications. Within this review, structural relationships and differences between nitrides and mixed-anion nitrides, such as nitride-halides, nitride-sulfides, nitride-carbides and nitride-borides will be highlighted to set the scenery and the future challenges to a fuller exploitation of the ‘anionic route’ as a strategy towards the design of new materials.
Prior, T., Headspith, D. A., & Francesconi, M. G. (2013). Modification of the anion sublattice in metal nitrides. Coordination chemistry reviews, 257(13-14), 1970-1977. https://doi.org/10.1016/j.ccr.2013.01.033