Ferroelectricity in bis(ethylammonium) pentachlorobismuthate(iii): synthesis, structure, polar and spectroscopic properties

Abstract

A brief description of the thermal, structural and dielectric properties of bis(ethylammonium) pentachlorobismuthate(iii) ferroelectric with Ps that equals to 1.4 μC cm−2 at 180 K is presented.

Correlation between crystal structures and polar (ferroelectric) properties of hybrids of haloantimonates(iii) and halobismuthates(iii)

“…• one-dimensional (1D) chains (cis-or trans-type) (Fig. 4(a) and (b) respectively) [100][101][102][103][104][105][106][107][108][109] • isolated [M 2 X 10 ] 4− units (two edge-sharing octahedra) (Fig. 4(c)); 49,110,111 Fig.…”

Towards ferroelectricity-inducing chains of halogenoantimonates(iii) and halogenobismuthates(iii)

“…[MX 5 ] N chain. [36][37][38][39][40][41][42][43][44][45] While (i)-(iv) ferroelectric cases are well known by now, particularly interesting is the recent signicant boost in the number of reported ferroelectric materials with [MX 5 ] N chains (v).…”

“…46 Therefore, it was anticipated to see much more ferroelectric R 2 MX 5 systems in the future than the three ferroelectrics known at that time: (MV)BiI 3 Cl 2 and (MV)BiBr 5 where MV is methylviologen dication, 36,37 and (C 3 N 2 H 5 ) 2 SbCl 5 with imidazolium cation. 38 Indeed, in the last several years, seven new ferroelectric compounds [39][40][41][42][43][44][45] 51 (bromoantimonate(III) only). To enlarge this database of compounds and to shed more light on the factors that might lead to the formation of this particular chain conguration, we explored further the incorporation of pyrimidinium derivatives into halogenoantimonates(III) and halogenobismuthates(III) networks.…”

Crystal structure, computational study, optical and vibrational properties of a new luminescent material based on bismuth(III): (C10H28N4)[Bi2Cl10]

“…From the structural point of view, RaMbXa+3b derivatives (R is organic cation, M = Bi and X = Cl, Br, I) exhibit a diversity of anionic structures. These systems usually form isolated molecules zero-(0D), infinite chains one-(1D), and two-(2D) dimensional inorganic networks [10][11][12]. The dimensions of Bi-based halide hybrids can be controlled by selecting suitable organic cations.…”