The result showed that ligand has good coordination ability with rare earth ions, and a binuclearcomplex was formed.
研究结果表明配体与稀土离子有较好的配位能力，并与稀土元素形成了双核配合物。
2
The binuclear tungsten citrate complex was synthesized by the reaction of (NH4)2WS4 with potassium citrate, and characterized by IR and elemental analysis.