Phase transitions in the A2BX4-compound: Tetramethylammonium tetrachlorozincate tetrachlorocuprate, [(CH3)4N]2Zn0.5Cu0.5Cl4, and room temperature crystal structure determination

Crystal structure of the monoclinic phase (phase IV) of bis(tetramethylammonium) tetrachloridocuprate(II)

“…A substructure search for compounds that incorporate a tetramethylammonium ion and a copper tetrachloride species reveals thirteen structures (CSD November 2016; Groom et al, 2016). Of these, three are structures of (Me 4 N) 2 [CuCl 4 ] with a discrete [CuCl 4 ] 2À anion (Morosin & Lingafelter, 1961;Clay et al, 1975;Hlel et al, 2008).…”

Ferroelastic property of tetramethylammonium tetrachlorozincate tetrachlorocuprate, [N(CH3)4]2Zn1−xCuxCl4 (x = 0, 0.1, 0.3, 0.5, and 1)

“…1). 26 This gure shows chains that are repeated sequences of Cu(Zn)Cl 4 and a-N(CH 3 ) 4 , where the sense of tetrahedron orientation alternates within the same chain. The b-N(CH 3 ) 4 tetrahedra are present between the chains and on both sides of the organic-inorganic layers, building organic layers.…”

NMR analysis of structural geometry and molecular dynamics in perovskite-type N(CH3)4CdBr3 crystal near high-temperature phase transition

“…ABX 3 perovskites are an interesting group of compounds that undergo phase transition accompanied by remarkable changes in their physical and chemical properties. [1][2][3][4][5][6][7] Many studies on organic-inorganic hybrid compounds have yielded meaningful results because of the wide applicability of these materials. [8][9][10][11][12][13][14][15][16][17] Tetramethylammonium tribromocadmate (N(CH 3 ) 4 CdBr 3 ) belongs to the N(CH 3 ) 4 BX 3 (B = 55 Mn, 59 Co, 64 Cu, 65 Zn, 113 Cd; X = 35 Cl or 79 Br) family of ABX 3 -type perovskites.…”