Magnetic and Spectroscopic Studies of Metallic Halide Complexes with N-Methyl-1,2,4-Triazoles |
| |
| Authors: | S. Zaydoun F. Guédira M. Saidi Idrissi A. Zrineh C. Garrigou-Lagrange A. Rubbens-Lorriaux |
| |
| Affiliation: | 1. Laboratoire de Spectroscopie Infrarouge, Département de Chimie, Faculté des Sciences , Université Mohammed V , Agdal, Rabat, Morocco szaydoun@yahoo.fr;3. Laboratoire de Spectroscopie Infrarouge, Département de Chimie, Faculté des Sciences , Université Mohammed V , Agdal, Rabat, Morocco;4. Laboratoire de Chimie Physique Générale, Département de Chimie, Faculté des Sciences , Université Mohammed V , Agdal, Rabat, Morocco;5. Centre de Recherche Paul Pascal, C.N.R.S. , Pessac, France;6. Laboratoire de Cristallochimie et Physicochimie du solide, CNRS UMR 8012, USTL, ENSCL , Villeneuve d'Ascq Cedex, France |
| |
| Abstract: | Complexes of metal (II) halides with N-methyl-1,2,4-triazoles have been prepared, characterized, and studied by magnetism, and electronic and vibrational spectroscopies. The complex with 1:4 stoichiometry is monomeric; those of 1:1 or 1:2 stoichiometries are polymeric. It is seen from electronic studies that metal ions are trans-octahedrally coordinated and chromophores are MX4N2 or MX2N4. These structural results are in accordance with the magnitude of magnetic exchange between metallic ions. The effects of metal–ligand bond formation on the vibrational modes of the studied N-methyl-triazoles show the coordination mode of the ligand. In the low-frequency range, assignments of metal–nitrogen and metal-halide stretching vibrations confirm advanced structural proposals. |
| |
| Keywords: | metal complexes polynuclear transition metal compounds spectroscopic and magnetic properties 1,2,4-triazole derivatives |
|
|
