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Abstract

IR, MIR, UV –Visible spectrahave been studied for Cobalt chloride molecule (CoCl2. 6H2O) compound, In wide range spectra (40000 –410) cm-1specially MIR range. Assignment were achieved for the fundamental vibrational bands of (CoCl2. 6H2O ) to symmetry stretchingƲ1(∑+) Anti –symmetry stretching Ʋ3(∑+), these bands are non-degenerate , and the bending band is Ʋ2(π)is doubly degenerate thought they have activity in IR and Raman , which explain the weakness insymmetry of this molecule, the fundamental bands for the molecule are centered at the following wave numbers(615, 685, 795, 1115, 1340, 1375, 1616.35, 2091, 2386, 2410, 3364) cm-1which are corresponding to wave lengths(16260, 14598, 12578, 8968, 7462, 7272, 6186, 4782, 4191, 4149, 2972 ) nmThe UV and visible spectra of the shows bands centered at (205.7) nm , (48614) cm-1due to the electronic transition ( n→ Ϭ∗) , other band centered at (512) nm, (19531)cm-1due to (n → ��∗) electronic transition .

Keywords

Infrared spectroscopy, Raman spectroscopy, vibrational modes, UV-Visible spectroscopy, Cobalt chloride

Article Type

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