Raman and infrared spectra of ferroelectric (CH3NH2CH2COO)3 CaCl2
| ISSN: |
0377-0486
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|---|---|
| Keywords: |
Chemistry ; Analytical Chemistry and Spectroscopy
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| Source: |
Wiley InterScience Backfile Collection 1832-2000
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| Topics: |
Chemistry and Pharmacology
Physics
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| Notes: |
Raman spectrum of Tris-sarcosine Calcium chloride has been recorded both in the para and ferroelectric phases using λ = 2537 Å of mercury as exciting radiation. The infrared absorption spectrum has been recorded both above and below the Curie temperature, in the region 400 to 4000 cm-1. From the observed splitting of the infrared bands it is concluded that the second order ferroelectric phase transition at 127K is due to a dynamical ordering of sarcosine molecules which exist in zwitteron configuration. Raman spectrum shows eight lattice lines which do not exhibit any anomaly as the crystal undergoes phase transition.
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| Additional Material: |
3 Ill.
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| Type of Medium: |
Electronic Resource
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| URL: |