Structural diversity and complexity of antiperovskites

Homochiral hybrid hexagonal antiperovskite crystals [R- and S-3-chloroquinuclidinium]3(CdCl3)(CdCl4)

“…S1, ESI†). 29,50 For R -1 and S -1, the positively charged organic molecules occupy the position belonging to oxygen atoms in BaNiO 3 , and the negatively charged [CdCl 4 ] 2− and [Cd(Cl 0.5 ) 6 ] − parts replace the Ba and Ni sites, respectively. Therefore, both R -1 and S -1 can be thought of as hexagonal antiperovskite structures and are isomorphic to the previously reported ones, including the similar length of bonds (Cl–Cd) and the angles of adjacent Cl atoms (Cl–Cd–Cl) in inorganic components (Tables S4 and S5, ESI†).…”

“…Benefiting from the powerful organic–inorganic hybrid platform, hybrid antiperovskites with new scopes and functions have also shown substantial progress. 25,29,30 In the early stage, known hybrid antiperovskites are limited to a few examples such as ternary tetrathiafulvalenium salts 31 and tris( N -ethylpyridinium) (μ 2 -oxo)-bis(trichloro-iron) tetrachloro-iron. 32 Subsequently, a series of new hybrid antiperovskite crystals has been acquired under the guidance of Goldschmidt's tolerance factor, which has provided great inspiration for developing a large family of hybrid antiperovskites via a chemical substitution path.…”

Metal halide perovskite nanocrystals for plant-growth lighting applications: strategies for boosting stability

“…Perovskite materials constitute a large family, which includes not only the classic ABX 3 structure but also subclasses such as A 2 BB′X 6 (A = monocation, X = halide) double perovskites 54–56 and A 3 BX (where the positions of the cationic and anionic constituents are reversed) antiperovskites. 57,58 They exhibit some interesting luminescent properties, such as triboluminescent antiperovskites 59 and dopant-induced photoluminescence. 60–62…”