Vibrational spectra of M3PCr4O16 (M = K,NH4) |
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| Institution: | 1. Research Scholar, Department of Physics and Research Centre, Women''s Christian College, Nagercoil 629 001, Tamil Nadu, India;2. Associate Professor, Department of Physics and Research Centre, Women''s Christian College, Nagercoil, Tamil Nadu, India;3. Affiliated to ManonmaniamSundaranar University, Abishekapatti, Tirunelveli 627 012, India;4. Assistant Professor, PG and Research Department of Chemistry, Kongunadu Arts and Science College, Coimbatore, Tamil Nadu, India |
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| Abstract: | The infrared and Raman spectra of the two phosphochromates M3PCr4O16 (M = K, NH4) have been recorded and analysed. The spectra could be interpreted on the basis of the vibrations of Cr-O-P, O-P-O and CrO3 groups. A large number of vibrational bands have been observed for each mode due to the existence of different Cr-O bond lengths. The anion is more distorted in potassium phosphochromate. The three ammonium groups are distinct. |
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