Mixed-metal one-dimensional sulfides: A class of materials with differences and similarities to oxides

摘要

The higher degree of covalency in the metal-sulfide bond in sulfides compared to the metal-oxide bond in oxides often leads to the breakdown of the ionic model for the description of sulfides, making the two classes of materials rather dissimilar. This feature considers how one-dimensional ternary (or mixed-metal) sulfides can be considered a class of materials for which the ionic model is still valid. A selection of one-dimensional mixed-metal sulfides is described with the aim of highlighting some similarities and differences with oxides, especially oxides of the same stoichiometry.