氟化碳酸根磷灰石红外光谱中的F⁻与CO₃²⁻相互作用

F--CO3(2-)-interaction in IR spectra of fluoridated CO3-apatites.

作者信息

Okazaki M

出版信息

Calcif Tissue Int. 1983;35(1):78-81. doi: 10.1007/BF02405010.

Abstract

Spectroscopic properties of fluoridated CO3-apatites were studied by means of infrared (IR) absorption analysis. The peak of the IR band caused by CO32-ions at 875 cm-1 shifted to a lower frequency with the degree of fluoridation. This result suggests that there is a significant interaction between F and CO32-ions in the apatite crystals. The interaction of both these ions is discussed with regard to the solubility behavior of fluoridated CO3- apatites in the acetate buffer solution at pH 4.0 and at 37 degrees C. Solubility of these fluoridated CO3-apatites approached that of fluoridated hydroxyapatites at high fluoride content.

摘要

通过红外（IR）吸收分析研究了氟化碳酸根磷灰石的光谱性质。由碳酸根离子（CO32-）在875 cm-1处引起的红外吸收带的峰值随着氟化程度向较低频率移动。该结果表明在磷灰石晶体中氟离子（F-）和碳酸根离子（CO32-）之间存在显著的相互作用。针对氟化碳酸根磷灰石在pH为4.0且温度为37摄氏度的醋酸盐缓冲溶液中的溶解行为，对这两种离子的相互作用进行了讨论。在高氟含量下，这些氟化碳酸根磷灰石的溶解度接近氟化羟基磷灰石的溶解度。