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研究了某些DMF和DMSO配位的金属十聚钨酸盐在3种有机溶剂中的光致变色性质,通过ESR、NMR和可见吸收光谱的研究及对五价钨的测定,说明了光致变色性质的产生与金属阳离子无关,而取决于十聚钨酸根W_(10)O_(32)~(4-)、金属离子的配体及所采用溶剂。
The photochromic properties of some metal-decatungstates complexed with DMF and DMSO in three organic solvents were studied. The ESR, NMR and visible absorption spectra and the determination of pentavalent tungsten show that the photoinduced The generation of discoloration has nothing to do with the metal cation, but depends on the decatantungstate W_ (10) O_ (32) ~ (4-), the metal ion ligand and the solvent used.