Polar Structure and Two-Dimensional Heisenberg Antiferromagnetic Properties of Arylamine-Based Manganese Chloride Layered Organic-Inorganic Perovskites.

ABSTRACT: The breaking of inversion symmetry can enhance the multifunctional properties of layered hybrid organic-inorganic perovskites. However, the mechanisms by which inversion symmetry can be broken are not well-understood. Here, we study a series of MnCl₄-based 2D perovskites with arylamine cations, namely, (C₆H₅C_xH_2xNH₃)₂MnCl₄ (x = 0, 1, 2, 3), for which the x = 0, 1, and 3 members are reported for the first time. The compounds with x = 1, 2, and 3 adopt polar crystal structures to well above room temperature. We argue that the inversion symmetry breaking in these compounds is related to the rotational degree of freedom of the organic cations, which determine the hydrogen

SUBMITTER: Septiany L 

PROVIDER: S-EPMC8527455 | biostudies-literature | 2021 Oct

REPOSITORIES: biostudies-literature