transition metal

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The HF-solvated Ag2+ ion (silver has the highest second ionization potential of any transition metal) oxidizes Xe at ordinary temperatures (Zemva et al., 1990) to make XeF2.
在过渡金属中，银的二阶电离势最高。在常温下，HF溶剂化的Ag2+离子可氧化Xe生成XeF2。
‘For example, we can put something such as sodium in the core, mixing with a transition metal and then coated with a protective outer layer. I don’t think you could make these by any other means.
例如，我们可以将钠与一种过渡金属作为内核，并在外面包裹一层保护层。
The chemisorption of aromatic molecules on transition metal is of great interest due to extensive use in petrol-chemistry industry and environment protection.
由于在石油化工和环境保护方面的广泛应用，芳香分子在过渡金属表面的吸附成为人们研究的热点。

And often, if you want to make a lot of it, you have to think about the thermodynamics of the system, how fast the reactions will go and kinetics, and then whether they'll go, the thermodynamics, and sometimes then you need to adjust the reactions, maybe use a transition metal to make it go better.
这种分子就不能正常工作，而且通常来说,如果你要大量生产一个东西,你必须考虑系统的热力学，反应速率和动力学,还有反应是否会发生，热力学，而且有时候你需要调整反应的发生。
麻省理工公开课 - 化学原理课程节选

any of a group of metal chemical elements including copper and gold that show more than one valency (= the number of hydrogen atoms that can combine with one of its atoms to form a compound)

any element belonging to one of three series of elements with atomic numbers between 21 and 30, 39 and 48, and 57 and 80. They have an incomplete penultimate electron shell and tend to exhibit more than one valency and to form complexes

过渡金属
Vanadium phosphate is one of the most important classes of open-framework transition metal phosphates.
钒磷酸盐是孔道结构过渡金属磷酸盐中重要的一类。
金属离子
It indicates that the formation of the coordination polymers takes on specificity. 2) The transition metal ions show important control ability on the structures of coordination polymers.
结果表明：1)改变反应物的配比所得只有一种组成的产物，说明晶体的形成具有专一性；2)配合物随配位中心构型的不同表现为不同的维数，说明金属离子配位方式的改变一定程度上可以导致配位聚合物维数的转变。
过渡态
过度金属

过渡金属
Owing to variety of electronic structures, nanostructured transition metal oxides have exhibited strongly potential applications in optics, magnetics, catalysis and batteries.
过渡金属氧化物因其多样性的价电子结构,使其具有丰富物理和化学性质,并显示出在光学、磁学、催化和电池等领域广泛的应用前景。
过渡族金属
In recent years,M-N-H（M:element of I-IV group or some transition metal） metal complex systems as hydrogen storage material have attracted much attention for its high weight density of hydrogen storage and quality of mutually inverse.
基于金属络合物储氢的质量百分密度高又具有一定的可逆性这一特点,近年来M-N-H（M是指Ⅰ-Ⅳ族和一些过渡族金属）系列储氢材料备受关注。
生物学
过渡金属