Chelate Ligands - Beautiful is Good

Japanese: キレート配位子 - きれーとはいいし
Chelate Ligands - Beautiful is Good

...The latter are called n- dentate ligands depending on the number of coordination atoms , n . A multidentate ligand that coordinates to one central atom to form a chelate complex is called a chelating ligand (see the entries for "chelating compounds" and "chelating agents"). An n- dentate ligand does not always have n dentates to one central atom; it can be a multidentate ligand with fewer than n or a monodentate ligand. ...

From [Ligand]

…In this case, the atoms in the ligand that are directly bonded to the central atom are called coordinating atoms, such as N in NH3 , C in CN- , Cl in Cl- , and N and O in NH2CH2COO- . Ligands that contain two or more coordinating atoms are called multidentate or chelate ligands. Multidentate ligands are called bidentate, tridentate, etc., depending on the number of coordinating atoms. …

*Some of the terminology that refers to "chelating ligand" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…後者は配位原子の数nに応じてn座配位子とよばれる。一つの中心原子に配位してキレート錯体をつくる多座配位子のことをキレート配位子という(〈キレート化合物〉〈キレート試薬〉の項参照)。n座配位子は一つの中心原子に対していつもn座配位するとは限らず,nより少ない多座あるいは単座配位子となりうる。…

【配位子】より

…この場合,NH3ではN,CNではC,ClではCl,NH2CH2COOではNおよびOのように,中心原子に直接結合している配位子中の原子を配位原子という。配位子のうち,一つの配位子で二つ以上の配位原子を含むものを多座配位子またはキレート配位子という。多座配位子は,配位原子の数によって,それぞれ二座配位子,三座配位子,……などと呼ばれる。…

※「キレート配位子」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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