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化学学报
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化学学报 ›› 1992, Vol. 50 ›› Issue (4): 357-364. 上一篇    下一篇

研究论文

钕锗钼杂多酸根配合物的合成、晶体结构和光谱性质

单永奎;刘宗绪;金钟声;卫革成   

  1. 哈尔滨师范大学化学系;中国科学院长春应用化学研究所
  • 发布日期:1992-04-15

Synthesis, strcuture and spectra properties of the neodymium molybdogermanate heteropoly complex

SHAN YONGKUI;LIU ZONGXU;JIN ZHONGSHENG;WEI GECHENG   

  • Published:1992-04-15

PDF

427

被引次数

17

合成及制备了K~7H~6[Nd(GeMo~1~1O~3~9)~2].27H~2O单晶, 测定其晶体结构, 空间群属P2~1/n, 晶胞参数: a=1.7095(4), b=2.6895(3), c=2.1214(5)nm, β=103.11(2)^o; V=9.4994(3)nm^3; Z=4; D~m=3.14g/cm^3, D~c=3.05g/cm^3; μ(MoKa)=43.7cm^-^1。利用结构分析的结果, 研究配合物的IR光谱性质, 提出利用IR光谱推测杂多配合物分子结构特征的实验证据和理论根据。电子光谱证实配合物中Nd^3^+的f轨道参与成键。

关键词: 晶体结构测定, 红外分光光度法, 杂多酸, 钾化合物, 钕络合物, 钼酸盐 P, 锗酸盐 P

K7H6[Nd(GeMo11O39)2].27H2O was synthesized, and the crystal structure was determine Crystal data: monoclinic, space group P21/n, a 1.7095(4), b 2.6895(3), c 2.1214(5) nm, b = 103.11(2)? Z = 4, R = 0.090. Experimental evidence and theor. foundation of the method inferring the mol. structure of heteropoly compounds using their IR spectra were given by studing IR spectral properties in comparison with results of the structural anal. Electronic spectra prove that a 4f orbital of Nd3+ takes part in bonding in the complex.

Key words: CRYSTAL STRUCTURE DETERMINATION, INFRARED SPECTROPHOTOMETRY, HETEROPOLYACID, POTASSIUM COMPOUNDS, NEODYMIUM COMPLEX, MOLYBDATE P, GERMANATE P

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