ELECTRON PARAMAGNETIC RESONANCE STUDIES ON SOME TUTTON SALT SYSTEMS
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Published:
Oct 31, 2020
Keywords:
Tutton salt EPR X-ray studies de-aquation studies of Tutton Salts
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Abstract
Abstract:
Electron paramagnetic resonance (EPR) studies have been carried out on a vanadyl doped mixed Tutton salt (Zn0.25 Mg0.75(NH4)2(SO4)2.6H2O) system. The “g” and “A” parameters obtained from our studies are then compared with other vanadyl doped Tutton salts and a critical analysis is presented. As EPR results depend upon the neighborhood of V4+ of doped V=O ion in the host, the ‘g’ and ‘A’ parameters obtained from our studies reflect distorted octahedral surroundings of V4+ in the Tutton salt host and two major types of metal –water linkages are established.
Our findings are supported by the X-ray studies and electric field assisted deaquation studies on Tutton salts by the earlier workers. Critical analysis and correlation of all the results indicate that the equatorial bonds and axial bonds between the oxygen of water molecules and the divalent cation in Tutton salts are different establishing that the octahedron formed by water molecules around the divalent ion in Tutton salts is distorted.
Keywords: Tutton salt, EPR, X-ray studies, deaquation studies of Tutton Salts.
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Pant, N., Verma, A. L., & Pandey, S. D. (2020). ELECTRON PARAMAGNETIC RESONANCE STUDIES ON SOME TUTTON SALT SYSTEMS. Malaysian Journal of Science, 39(3), 85–94. https://doi.org/10.22452/mjs.vol39no3.7
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References
Borcherts, R. H., & Kikuchi, C. (1964). VO2+ and Xâ€Ray Produced V2+ in Tutton Salt. The Journal of Chemical Physics, 40(8), 2270-2275.
Chen, Z., Fei, S., & Strauss, H. L. (1998). Switching the Jahn− teller distortion in crystalline ammonium hexa-aqua-copper sulfate (Tutton salt) with infrared radiation. Journal of the American Chemical Society, 120(34), 8789-8796.
Jain, V. K., Seth, V. P., & Malhotra, R. K. (1984). Electron paramagnetic resonance of
vanadyl ion impurities in crystalline solids. Journal of Physics and Chemistry of Solids, 45(5), 529-545.
Jain, V. K., & Venkateswarlu, P. (1979). Electron paramagnetic resonance studies of VO2+ impurities in ferroelectric LiH3 (SeO3)2. Chemical Physics Letters, 62(2), 320-324.
Jain, V. K., & Yadav, S. K. (1985). Estimation of T1 for Co2+ ions from the temperature variation of the ESR linewidths for VO2+ in Cs2Co (SeO4) 2• 6H2O single crystals. Solid state communications, 56(2), 239-241.
Margulis, T. N., & Templeton, D. H. (1962). Crystal structure and hydrogen bonding of magnesium ammonium sulfate hexahydrate. Zeitschriftfür Kristallographie-Crystalline Materials, 117(5-6), 344-357.
Mishra, A. K., Kumar, S. & Pandey, J. L. (2008). A theoretical model for electric field assisted deaquation in sodium tungustate dihydrate. International Journal of Essential Sciences, 2(1), 36-41.
Pake, G. E. (1962). Paramagnetic resonance: an introductory monograph (Vol. 1). WA Benjamin.
Ravi, S., Selvakumar, P. N., & Subramanian, P. (2006). Electron paramagnetic resonance study of Cr3+ ions in (NH4)2Co (SO4)2•6H2O single crystal. Solid state communications, 138(3), 129-131.
Srivatsa, K. M. K., & Pandey, S. D. (1984, December). Deaquation process in ammonium Tutton salts
through electrical and dielectric measurements. Proceedings of the Indian Academy of Sciences-Chemical Sciences (Vol. 93, No. 8, pp. 1323-1329). Springer India.
Srivatsa, K. M. K. & Pandey, S. D. (1985a). Deaquation process in ZnK2(SO4)2.6H2O as studied through electrical measurements. Indian Journal of Physics, 59(A), 28-33.
Srivatsa, K. M. K. & Pandey, S. D. (1985b). Electrical conductivity and thermo-gravimetric analysis studies in MgK2(SO4)2.6H2O Tutton salt. Indian Journal of Physics, 59(A), 547-551.
Tutton, A. E. H. (1928). The hexahydrated double sulphates containing thallium. Proceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character, 118(780), 367-392.
Upreti, G. C., & Saraswat, R. S. (1984). EPR study of VO2+ in some paramagnetic Tutton salt single crystals. Physica Status Solidi. B, Basic Research, 122(2), K169-K173.
Vimal, K., JAIN, V. K., & SARAN, D. (1981). Electron paramagnetic resonance of VO2+ in tutton salts. Indian Journal of Physics (Part A), 55(4), 285-292.
Chen, Z., Fei, S., & Strauss, H. L. (1998). Switching the Jahn− teller distortion in crystalline ammonium hexa-aqua-copper sulfate (Tutton salt) with infrared radiation. Journal of the American Chemical Society, 120(34), 8789-8796.
Jain, V. K., Seth, V. P., & Malhotra, R. K. (1984). Electron paramagnetic resonance of
vanadyl ion impurities in crystalline solids. Journal of Physics and Chemistry of Solids, 45(5), 529-545.
Jain, V. K., & Venkateswarlu, P. (1979). Electron paramagnetic resonance studies of VO2+ impurities in ferroelectric LiH3 (SeO3)2. Chemical Physics Letters, 62(2), 320-324.
Jain, V. K., & Yadav, S. K. (1985). Estimation of T1 for Co2+ ions from the temperature variation of the ESR linewidths for VO2+ in Cs2Co (SeO4) 2• 6H2O single crystals. Solid state communications, 56(2), 239-241.
Margulis, T. N., & Templeton, D. H. (1962). Crystal structure and hydrogen bonding of magnesium ammonium sulfate hexahydrate. Zeitschriftfür Kristallographie-Crystalline Materials, 117(5-6), 344-357.
Mishra, A. K., Kumar, S. & Pandey, J. L. (2008). A theoretical model for electric field assisted deaquation in sodium tungustate dihydrate. International Journal of Essential Sciences, 2(1), 36-41.
Pake, G. E. (1962). Paramagnetic resonance: an introductory monograph (Vol. 1). WA Benjamin.
Ravi, S., Selvakumar, P. N., & Subramanian, P. (2006). Electron paramagnetic resonance study of Cr3+ ions in (NH4)2Co (SO4)2•6H2O single crystal. Solid state communications, 138(3), 129-131.
Srivatsa, K. M. K., & Pandey, S. D. (1984, December). Deaquation process in ammonium Tutton salts
through electrical and dielectric measurements. Proceedings of the Indian Academy of Sciences-Chemical Sciences (Vol. 93, No. 8, pp. 1323-1329). Springer India.
Srivatsa, K. M. K. & Pandey, S. D. (1985a). Deaquation process in ZnK2(SO4)2.6H2O as studied through electrical measurements. Indian Journal of Physics, 59(A), 28-33.
Srivatsa, K. M. K. & Pandey, S. D. (1985b). Electrical conductivity and thermo-gravimetric analysis studies in MgK2(SO4)2.6H2O Tutton salt. Indian Journal of Physics, 59(A), 547-551.
Tutton, A. E. H. (1928). The hexahydrated double sulphates containing thallium. Proceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character, 118(780), 367-392.
Upreti, G. C., & Saraswat, R. S. (1984). EPR study of VO2+ in some paramagnetic Tutton salt single crystals. Physica Status Solidi. B, Basic Research, 122(2), K169-K173.
Vimal, K., JAIN, V. K., & SARAN, D. (1981). Electron paramagnetic resonance of VO2+ in tutton salts. Indian Journal of Physics (Part A), 55(4), 285-292.