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观测了十三个四磷酸镧系希土钾盐(KPm(PO_3)_4 和kLu(PO)_3)_4除外)和四磷酸钇钾的红外和拉曼光谱.利用基团频率对振动谱带进行了归属.发现了α结构与β结构间的光谱差异,与X射线衍射的结果一致.可用于区分两种晶型.观察到了磷酸根伸缩振动、变角振动和Ln-O伸缩振动频率随希土离子原子序数的增加而增加,及Ln-O伸缩频率随希土离子总角动(?)变化呈类似“斜W”效应的规率.
Thirteen Lanthanum Tetrapotassium Phosphate (KPm (PO_3) _4 and kLu (PO) _3) _4 were observed and the IR and Raman spectra of Yttrium Tetraphosphate were observed. The vibrational bands were calculated using the group frequency Found that the spectral difference between the α structure and the β structure, consistent with the results of X-ray diffraction can be used to distinguish the two crystal forms were observed phosphate stretching vibration, angular vibration and Ln-O stretching vibration frequency with Greek With the increase of atomic number of ions, the frequency of Ln-O telescope changes with the total angular movement (?) Of the ions of earthen ion in a similar “oblique W” effect.