E. g. "the spectrum of pyridine coordinately bonded to the surface is markedly different from that of the pyridinium ion".

例如：吡啶的光谱与表面的协调度和吡啶离子有显著不同。

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An organic coordination (complexing) compound in which the metal ion is bound to atoms of nonmetals, e. g. nitrogen, carbon, or oxygen, to form a heterocyclic ring having coordinate covalent bonds.

一种配位(络合)化合物，其中的金属离子与氮、碳或氧等非金属原子结合生成有配位共价键的杂环。

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Precious metals: hydroxide precipitation and sedimentation plus precious metal recovery, e. g. evaporation, ion exchange, etc.

贵金属：氢氧化物沉淀+贵金属回收，如蒸发，离子交换等等。

youdao

Well, we would have to H+ have one of these hydrogen atoms go to an H plus, * plus an electron, right? **H --> H+ + e-** So, now we have a hydrogen ion here.

我们先要让,一个氢原子变成氢离子，加上一个电子，对么*,我们现在有一个氢离子了。

麻省理工公开课 - 固态化学导论课程节选

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