Abstract
A series of new complex salts of the type [A]2[MCl2I2] where A=1,3,5-trimethylpyridinium cation, M= Mn+2,Co+2, Ni+2,Cu+2 and Zn+2 were prepared by the reaction of the metal chloride and 1,3,5-trimethylpyridinium iodide in (1:2) molar ratio and characterized by elemental analysis, molar conductance, IR, Uv/Vis., spectral studies and magnetic measurements. The crystal structure of 1,3,5-trimethylpyridinuim iodide was determined by single crystal x-ray crystallography. The structure of the anion part and a 1,3,5- trimethylpyridinium cation which crystallizes in the orthorhombic space group (Cmcm) with a=8.9850(9), b=15.767(2), c=6.9940(6)A°, V=990.82 (16)A°, Z=4. Which is on a crystallographic mirror plane perpendicular to C-axis except for methyl hydrogen atoms. The anion and cation are connected through hydrogen bonds between I and the cation by hydrogen bonding, electrostatic interaction and weak π-π interaction are also expected.
Highlights
Considerable interest has been shown over recently years in the transition metal halide complexes, and a among them tetrahalometalates with various organic counter cations have been subject of theoretical (Navaro et al, 2009), structural (Lozano et al, 2004) magneto-structural (Luque et al, 2002 ; Mazotto et al, 2001) and spectroscopic studies (Luque et al, 1997 ; Hitchman and Cassidy1979)
The preparation, crystal structure and solid-state properties of four tertrabromocuprate(II) salts using pyridinium and n-methylpyridinium (n=2,3- and -4-) as counter ions were carried out as a part of studies on hybride organic/ inorganic material based copper (II) halides, in which they show the influence of the organic cation(size, shape and position of the substitutent) on the packing interactions that governed the crystal organization (Luque et al, 2001 ; Sertucta and Luque, 1998)
The design and synthesis of copper (II) bromides constitutes to receive much attention owing to their applications in fundamental and applied science, ranging from solid-state physics to bioinorganic chemistry
Summary
Considerable interest has been shown over recently years in the transition metal halide complexes, and a among them tetrahalometalates with various organic counter cations have been subject of theoretical (Navaro et al, 2009), structural (Lozano et al, 2004) magneto-structural (Luque et al, 2002 ; Mazotto et al, 2001) and spectroscopic studies (Luque et al, 1997 ; Hitchman and Cassidy1979). The preparation, crystal structure and solid-state properties of four tertrabromocuprate(II) salts using pyridinium and n-methylpyridinium (n=2-,3- and -4-) as counter ions were carried out as a part of studies on hybride organic/ inorganic material based copper (II) halides, in which they show the influence of the organic cation(size, shape and position of the substitutent) on the packing interactions that governed the crystal organization (Luque et al, 2001 ; Sertucta and Luque, 1998). The crystal structure of 1,3,5trimethylpyridinium iodide was determined by x-ray crystallography.
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