Analysis of the Infrared Absorption Spectrums of Magnesite

마그네사이트의 적외선 흡수 스펙트럼 해석

  • Published : 1977.04.01

Abstract

The infrared absorption spectrum of Synthesized magnesite is shown in the wve number region 2510 and 745cm-1. By using Wilson's GF matrices the force constants' of the Urey-Bradley force field were deterined from the infrared absorption frequencies. For magnesite the stretching force constant K=5.41, the bending force constant H=0.46, the repulsive force constant F=1.97, and the force constant for the out-of-plane vibration fθ=0.65md/Å. For calcite they are K=5.51, H=0.38, F=1.88 and fθ=0.64md/Å.

Keywords

References

  1. Proc. Indian Acad. Sci v.43A Raman spectrum of magnesite D. Krishnamurti
  2. Amer. Mineral v.45 Infrared study of the carbonate minerals C.K. Huang;P.F. Kerr
  3. Amer. Mineral v.48 Infrared absorption frequency trends for anhydrous normal carbonates H.H. Alder;P.F. Kerr
  4. Amer. Mineral v.56 The effect of periodicity on the infrared absorption frequency v₄of anhydrous normal carbonate minerals H. Elderfield;R. Chester
  5. 대한요업학회지 v.12 마그네사이트의 결정구조에 관한 연구 吳基東
  6. Molecular vibration E.B. Wilson;J.C. Decius;P.C. Cross
  7. Phys. Rev. v.38 The vibrations of pentatonic tetrahedral molecules H.C. Urey;C.A. Bradley
  8. Amer. Mineral v.44 Refinement of the crystal structure of dolomite H. Steinfink;F.T. Sans
  9. Amer. Mineral v.56 Refinement of the crystal structure of aragonite A. Dal Negro;L. Ungaretti
  10. Amer. Mineral v.56 Crystal structure of aragonite, strontianite, and Witherite J.P.R. De Villiers