Structure, phase transition and molecular motions in (C5H5NH)BiCl4

Synthesis, Crystal Structure, Thermal and Dielectric Properties of a New Semi-organic Crystal: 2[N(2-Aminoethyl)-1,3-propanediaminium] octachlorodimercurate, tetrachloromercurate

“…and NH ? ions becomes more excited, which contributes to the high conductivity of the material [19]. Synthesis of a New Semi-organic Crystal Complex impedance spectra Z'' versus Z' [-Z'' = f (Z')] recorded at various temperatures are presented in Fig.…”

Structural phase transitions coupled with prominent dielectric anomalies and dielectric relaxation in a one-dimensional organic–inorganic hybrid compound [C3H4NS][CdCl3]

“…3b). 18 Additionally, the dispersion appearing in the frequency below 10 10 Hz originates from molecule dipole motion or ionic polarization according to the four different dielectric dispersion mechanisms. For example, the cyclopentylammonium cations in [C 5 H 9 NH 3 ][CdCl 3 ] 24 and 3-pyrrolinium cations in (3-pyrrolinium)(CdCl3) 6 exhibit 4-fold and 2-fold orientational disorder above phase transition temperature, respectively, and become totally ordered in the LTP.…”

“…[3][4][5][6][7] The weak intermolecular interactions in these compounds, such as hydrogen bonding interactions between the inorganic and organic components, provide freedom of the molecular motion of the organic cation. [16][17][18] However, in the group of halogenocadmates(II), such behaviors are rarely reported. Wellknown examples are halogenoantimonates(III) and halogenobismuthates(III), which form a variety of crystal structures with dozens of distinct anionic architectures.…”

Structural characterization, thermal, dielectric, vibrational properties and molecular dynamics of (C5H5NH)3BiCl6

“…We have studied three pyridinium halogenobismuthates(III), i.e. (C 5 H 5 NH) 6 Bi 4 Cl 18 [14], (C 5 H 5 NH)BiCl 4 [15] and (C 5 H 5 NH) 5 Bi 2 Br 11 [16]. The ferroelectricity was found, however, only in the compound of the R 5 Bi 2 X 11 composition, (C 5 H 5 NH) 5 Bi 2 Br 11 .…”