Vibrational study of [(CH3)4N]2Cu0.5Zn0.5Cl4
A Ben Rhaiem1, F Hlel, K Guidara
1Laboratoire de l'état solide, Faculté des Sciences de Sfax, B.P. 802, 3038 Sfax, Tunisia. Arhaim@yahoo.fr
[(CH3)4N]2Zn0.5Cu0.5Cl4 exhibits an orthorhombic structure with 372 vibrational modes. Infrared and Raman spectroscopy were used to analyze the vibrational spectra of this mixed-metal coordination compound.
Area of Science:
- Solid-state chemistry
- Crystallography
- Spectroscopy
Background:
- [(CH3)4N]2Zn0.5Cu0.5Cl4 is a mixed-metal coordination compound.
- The crystal structure at ambient temperature is orthorhombic with P2(1)nb space group.
- The crystal comprises MCl4 (M=Cu, Zn) and tetramethylammonium sublattices.
Purpose of the Study:
- To investigate the vibrational properties of [(CH3)4N]2Zn0.5Cu0.5Cl4.
- To analyze the infrared and Raman spectra of polycrystalline samples.
- To assign the observed vibrational bands based on group theory.
Main Methods:
- X-ray crystallography (implied by space group determination)
- Infrared (IR) spectroscopy
- Raman spectroscopy
Main Results:
- The crystal structure was determined to be orthorhombic with space group P2(1)nb.
- A total of 372 vibrational modes were predicted.
- Infrared and Raman spectra were recorded and analyzed at room temperature.
Conclusions:
- The vibrational modes were classified according to the C2v point group.
- The observed spectral bands were assigned.
- The study provides insights into the vibrational behavior of mixed-metal halide coordination compounds.
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