Methods and recent development of isolation of structurally characterizable alkali, alkaline earth and lanthanide metal ketyl radical complexes were reviewed in the paper.
介绍了利用金属离子的配位作用捕获并分离重要有机反应中间体—— 自由基中间体的研究方法和最新进展。
The ligand field stabilization, the transition-metal contraction, and the lanthanide contraction are reflected in the relative values of the electronegativity scale.
此外，该标度值的相对大小还能反映配合物的稳定性，过渡金属收缩和镧系元素收缩等性质。
In this paper, the preparation of lanthanide chromium bimetallic alkoxide and perovskite LaCrO_3 powders by the metal alkoxide hydrolysis methods were invest.
本论文研究了用醇锂法制备镧铬双醇盐以及用镧铬双醇盐水解制备铬酸镧粉体的工艺。
Cerium: chemical element, a rare earth metal of the lanthanide series (hence having many properties of the transition elements), chemical symbol ce, atomic number 58.
铈：化学元素，周期表iii b族过渡金属中丰度最大的稀土金属。化学符号Ce，原子序数58。
Cerium: chemical element, a rare earth metal of the lanthanide series (hence having many properties of the transition elements), chemical symbol ce, atomic number 58.
铈：化学元素，周期表iii b族过渡金属中丰度最大的稀土金属。化学符号Ce，原子序数58。
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