这个词是什么意思？
Neutral or negatively charged ligands bonded to metal cations or neutral atoms. The number of ligand atoms to which the metal center is directly bonded is the metal cation's coordination number, and this number is always greater than the regular valence or oxidation number of the metal. A coordination complex can be negative, neutral, or positively charged.
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D056831 · MeSH 2026。
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