Inorganic-organic layered halide perovskites, with specific focus on PAMC, and its key and slot joint interlayers

Abstract

AbstractA brief account is given on layered halide perovskitesA2BX4, and their relationships with the 3DABX3perovskites. The scientific history of the family of inorganic-organic hybrid structures of (CnH2n+1NH3)2MCl4, withM= Mn, Cd, Cu is described. The special case of PAMC, (C3H7NH3)2MnCl4, is shortly discussed, with special emphasis on the importance of non-bonded interlock layers interwoven with the topological layered perovskite structure and occurring accidentally on geometrical grounds in the propyl-compounds. These layers are believed to be the main reason for the uniqueness of these compounds in the series (CnH2n+1NH3)2MCl4, withn= 1–10 (at least). Modern achievements of investigations into other inorganic-organic hybrid perovskite-type layer structures are also addressed to.