Ferroelectric phase transition in tris (dimethylammonium) nonachlorodiantimonate (III), [NH2(CH3)2]3Sb2Cl9

Synthesis, crystal structure and Hirshfeld surface analysis of a polymeric bismuthate(III) halide complex, (C6H6N3)2[BiCl5]·2H2O

“…mononuclear) or extended (i.e. polynuclear) inorganic networks of corner-, edge-, or face-sharing octahedra, leading to an extensive family of bismuth halogenoanions (Jakubas, 1986;Jakubas et al, 1988Jakubas et al, , 1995. A variety of organic cations, ring shaped or linear, have a strong impact on the arrangements of BiX 6 octahedra and the formation of hydrogen bonds (Dammak et al, 2015;Elfaleh & Kamoun, 2014).…”

Thermal and vibrational studies of propylenediammonium hexachlorobismuthate dihydrate, [NH3(CH2)3NH3]3(BiCl6)2·2H2O

“…In compounds of the type R 2 BiCl 5 (where R D alkylammonium), such as NH 3 C 5 H 10 NH 2 2 BiCl 5 , the anion sublattice is built of isolated BiCl 5 2 n units composed of nBiCl 6 3 octahedra sharing a corner. 18 In this situation, the anion sublattice of the structure of this compound at room temperature is made up of Bi 2 Cl 10 4 isolated dimers, which are constituted of two distorted octahedra sharing one edge.…”

“…10 -12 However, the homologues of pentahalometallates(III) were less studied, as is the case with NH 3 CH 2 6 NH 3 BiCl 5 . 13 Most often, the crystal lattice of the haloantimonates(III) is built up of distorted MX 6 the anionic sublattice by weak N-HÐ Ð ÐCl hydrogen bonds (N-Cl D 3.15Å). 14 Thermal analysis and Raman spectroscopic studies of this new family of hydrated compounds are of interest.…”

Ferroelectric Phase Transition in DC Electric Field in [NH2(CH3)2]3Sb2Cl9Crystals

“…The former DMA cations are believed to contribute to the mechanism of phase transition. DMACA undergoes continuous ferroelectric phase transition from P 2 1 /c to P c at 242 K [5][6][7]. DMACA possesses also ferroelastic properties at RT and the hypothetical paraelastic phase 3m was proposed [8].…”