稀土元素多元杂多配合物振动光谱的研究

STUDIES ON IR SPECTRA OF LANTHANIDE HETEROPOLY COMPLEXES

稀土元素含钼杂多酸根配合物,含钼、钨杂多酸根配合物,以及钒、钼或钨混合多元杂多酸根配合物,共100余种,首次被合成出来。测定了它们的 IR 光谱,通过与相应的 Keggin 结构和 Dawson 结构的 IR 光谱比较,对某些主要谱带进行指认,讨论了它们的特征与变化规律。

IR spectra and synthesis of the eighteen series of lanthanide polybasic heteropoly complexes are reported and discussed by comparison with those of Keggin and Dawson structure of heteropoly compounds.The main observed bands for the complexes were assigned.The results prove that the splitting degree of the ν_(as)X-Oa and ν_(as)M-O-M(M=Mo,W and V) bands depend on the local symmetry and composition elements of heteropoly anions.