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Original scientific paper
On the Structure .and Symmetry of the Phosphate Ions in Some Calcium Phosphates
B. Šoptrajatov
; Department of Chemistry, Faculty of Science, University· of Skopje, $kopje, .Macedonia, Yugoslavia
I. Petrov
; Department of Chemistry, Faculty of Science, University· of Skopje, $kopje, .Macedonia, Yugoslavia
| Fulltext: english, pdf (10 MB) | pages 37-45 | cite | |
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APA 6th Edition Šoptrajatov, B. & Petrov, I. (1967). On the Structure .and Symmetry of the Phosphate Ions in Some Calcium Phosphates. Croatica Chemica Acta, 39 (1), 37-45. Retrieved from https://hrcak.srce.hr/208106 MLA 8th Edition Šoptrajatov, B. and I. Petrov. "On the Structure .and Symmetry of the Phosphate Ions in Some Calcium Phosphates." Croatica Chemica Acta, vol. 39, no. 1, 1967, pp. 37-45. https://hrcak.srce.hr/208106. Accessed 23 Apr. 2021. Chicago 17th Edition Šoptrajatov, B. and I. Petrov. "On the Structure .and Symmetry of the Phosphate Ions in Some Calcium Phosphates." Croatica Chemica Acta 39, no. 1 (1967): 37-45. https://hrcak.srce.hr/208106 Harvard Šoptrajatov, B., and Petrov, I. (1967). 'On the Structure .and Symmetry of the Phosphate Ions in Some Calcium Phosphates', Croatica Chemica Acta, 39(1), pp. 37-45. Available at: https://hrcak.srce.hr/208106 (Accessed 23 April 2021) Vancouver Šoptrajatov B, Petrov I. On the Structure .and Symmetry of the Phosphate Ions in Some Calcium Phosphates. Croatica Chemica Acta [Internet]. 1967 [cited 2021 April 23];39(1):37-45. Available from: https://hrcak.srce.hr/208106 IEEE B. Šoptrajatov and I. Petrov, "On the Structure .and Symmetry of the Phosphate Ions in Some Calcium Phosphates", Croatica Chemica Acta, vol.39, no. 1, pp. 37-45, 1967. [Online]. Available: https://hrcak.srce.hr/208106. [Accessed: 23 April 2021] |
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Abstracts
The infrared Spectra, ·recorded at room-temperature and at
7711K, bf some calcium ' orthophosphates (anhydrous dicalcium .
phosphate, dicalcium phosphate dihydrate and octacalcium phosphate)
have been analysed, particularly with respect to the site
symmetry of the phosphate ions. .
Whereas ·the free phosphate ion exhibits Ta symmetry, C3v
symmetry could be expected for the hydrogen phosphate ion,
HPQ~.- . Ho'fever, in the solid state the site symmetry of the
phosphate ions of the analysed compounds is apreciably lowered
as inferred from the fact that the degeneracies of all vibrational
modes have been removed and all modes are infrared active. This
could correspond fo the Cs or Ci symmetry groups for which the
selection rules and · activities are identical. It was concluded that,
on the basis of the present information, it is not possible to distinguish
between these two symmetry groups.
Hrčak ID: 208106
URI
https://hrcak.srce.hr/208106
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