Magneto-Structural Studies of 2-(2-Ammoniumethyl)-1-méthyl Pyrrolidinium Tetrachlorocuprate (II)

• Published in: Journal of superconductivity and novel magnetism Vol. 26; no. 3; pp. 693 - 702
• Main Authors: Amamou, W., Triki, M., Dhahri, E., Zouari, F., Koumina, A., Fliyou, M.
• Format: Journal Article
• Language: English
• Published: Boston Springer US 01-03-2013; Springer
• Subjects: Characterization and Evaluation of Materials; Condensed Matter Physics; Condensed matter: electronic structure, electrical, magnetic, and optical properties; Condensed matter: structure, mechanical and thermal properties; Domain effects, magnetization curves, and hysteresis; Exact sciences and technology; Exchange and superexchange interactions; Magnetic Materials; Magnetic properties and materials; Magnetically ordered materials: other intrinsic properties; Magnetism; Magnetization curves, magnetization reversal, hysteresis, barkhausen and related effects; Original Paper; Physics; Physics and Astronomy; Saturation moments and magnetic susceptibilities; Strongly Correlated Systems; Structure of solids and liquids; crystallography; Structure of specific crystalline solids; Superconductivity; Infrared spectroscopy; Magnetic; Metal character; Raman scattering; Crystal structure; Raman spectra; Space groups; Magnetization; Magnetic field effects; Infrared spectra; Magnetic susceptibility; Atomic arrangement; Orthorhombic lattices; Ferromagnetism; Copper; Exchange interactions
• ISSN: 1557-1939; 1557-1947
• DOI: 10.1007/s10948-012-1788-6

The (C
7
H
18
N
2
)CuCl
4
compound crystallized in the orthorhombic system with space group
P
2
1
2
1
2
1
and the following unit cell are:
a
=7.353(3),
b
=11.608(5),
c
=16.666(8) Å, and
Z
=4;
R
=0.0327,
wR
=0.085. The crystal structure consists of infinite zigzag one-dimensional chains of 2-(2-ammoniumethyl)-1-méthyl pyrrolidinium dications and distorted [CuCl
4
]
2−
tetrahedral anions along the
b
axis. The cohesion of the atomic arrangement is ensured by hydrogen bonding (N–H⋯Cl).
The temperature dependence of the magnetic susceptibility was measured in the temperature range of 2–100 K at different magnetic field intensities. The results indicate that the complex exhibit a weak antiferromagnetic coupling between the copper (II) centers. The ferromagnetic ordering is further confirmed by the magnetic field dependence of the magnetization between 2 and 30 K.