Kβ X-Ray Emission Spectra of Phosphorus Oxo Acids and Anions
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概要
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With a high-resolution two-crystal vacuum spectrometer, the phosphorus Kβ emission spectra in fluorescence are measured for H_3PO_3 (= H_2PHO_3), H_3PO_4, Li_3PO_4, Na_3PO_4. 12H_2O, Na_2HPO_4, NaH_2PO_4, K_3PO_4・nH_2O, K_2HPO_4, KH_2PO_4, Ca_3(PO_4)_2, CaHPO_4・2H_2O, Ca(H_2PO_4)_2・H_2O, CaHPO_3・H_2O, Ca(H_2PO_2)_2 and NH_4H_2PO_4. In the phosphate compounds, a weak peak is observed on the high-energy side of the main peak Kβ_1 and related to a molecular orbital of t_2 symmetry in the PO^<3->_4 ion. It is shown that the phosphorus Kβ emission spectra are influenced by ligand substitution and cations. The measured Kβ emission spectra of Li_3PO_4, Na_3PO_4・12H_2O, K_3PO_4・nH_2O and Ca_3(PO_4)_2 are presented along with the previously reported P-K absorption spectra of these phosphate compounds. The emission and absorption spectra are interpreted in terms of available molecular orbitals of the PO^<3->_4 ion.
- 社団法人日本物理学会の論文
- 1995-03-15
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