Synthesis of novel LaOAgS-type cation-deficient bismuth oxyhalides

Substituting Copper with Silver in the BiMOCh Layered Compounds (M = Cu or Ag; Ch = S, Se, or Te): Crystal, Electronic Structure, and Optoelectronic Properties

“…However, we did not succeed in synthesizing the analogous BiAgOCh phases with this route, metallic silver and other impurities always being obtained. According to Charkin et al, 32 interdependent distortions of the oxide and chalcogenide tetrahedra are more pronounced in BiAgOCh than in BiCuOCh or LaAgOCh, which inhibits the formation of the product. Moreover, silver salts tend to be reduced upon being heated at high temperatures, favoring silver metal segregation.…”

A New Approach to Synthesis of Layered Fluorites Containing Molecular Anions: Synthesis of Ln2O2CO3, K(LnO)CO3, and Ln2O2CrO4 via Metathesis Reactions

“…The interest in these compounds initiated from various important properties exhibited by many of their representatives, e.g., superconductivity, ferroelectricity, ionic conductivity, and exchange, including trapping of toxic and radioactive anions, etc. Another source of interest stems from their particularly versatile crystal chemistry involving, e.g., complicated mixed-layer structures with stacking periods of up to 90 Å, stabilization of unusual coordination polyhedra, and even nonambient or new polymorphic forms as 2D fragments. Besides, the 2D character of structure has a strong effect on their reactivity, invoking reactions not possible among compounds of other dimensionality.…”

Band engineering of layered oxyhalide photocatalysts for visible-light water splitting

“…134 There are other potential building blocks such as anti-uorite and rock-salt layers. [135][136][137] There are a variety of layered compounds structurally related to Sillén phases, in which the uorite layers are separated by negatively charged layers other than halides (e.g., chalcogen).…”