摘要
测量了宽波段范围 (紫外可见、近红外及中红外 )稀土乙酰丙酮 (aa)配合物的光声光谱 ,检测到了大部分Pr3+ 的f f跃迁谱峰 ,分析了Pr -O键性质 ,解释了谱峰分裂以及谱峰位移的原因。与传统的透射谱和吸收谱相比较 ,光声光谱具有检测快速、分辨率高以及可进行无损分析等优点 ,特别是对于稀土离子的f f跃迁的研究 。
The UV Vis, NIR and MIR Photoacoustic Spectra of Pr(aa) 3·2H 2O were measured and most f f transition peaks of Pr 3+ were detected. The peak split and peak shift were studied. The covalency parameter was calculated and it turned out that the covalent bonds exist between Pr 3+ ions and ligands . The results show that photoacoustic spectroscopy offers a unique and complementary method in analysis of solid rare earth complexes. Compared with conventional FT IR transmission and absorption approaches, PAS has the advantages of fast, nondestructive analysis and high resolution.
出处
《中国稀土学报》
CAS
CSCD
北大核心
2002年第4期374-377,共4页
Journal of the Chinese Society of Rare Earths
基金
国家自然科学基金资助项目 (2 9875 0 2 6)
关键词
镨
稀土
F-F跃迁
镨乙酰丙酮配合物
光声光谱
rare earths
f f transition
rare earth acetylacetonates
photoacoustic spectroscopy