Intercalation Chemistry of Metal Chalcogenohalides

Electronically Driven Structural Distortions in Lithium Intercalates of then= 2 Ruddlesden−Popper-Type Host Y2Ti2O5S2: Synthesis, Structure, and Properties of LixY2Ti2O5S2(0 <x< 2)

“…Intercalation is important in the modification of materials properties. , Reductive topotactic insertion of alkali metals into transition-metal oxides and sulfides has been explored extensively in the context of producing electrochromic devices and in battery technology. − Other classes of solid such as fullerenes, nitrides, oxyhalides, and nitride halides have also been investigated as hosts for intercalation, and the lithium intercalates of the layered group 4 nitride halides β-ZrNCl and β-HfNCl and the fullerides of the heavier alkali metals, such as K 3 C 60 , are superconductors. Layered oxides such as the numerous and technologically important Ruddlesden−Popper (R−P) phases ( A n+ 1 M n X 3 n +1 ), which consist of perovskite slabs n octahedra thick separated by so-called rock salt layers, accept nonredox intercalants to increase the separation of the slabs or exfoliate them .…”