A polydentate ligand is a compound that can become a polydentate ligand by coordinating with a metal ion to form a chelate compound. For example, carbonic acid gives up two hydrogen ions to become a carbonate ion, which then coordinates to the central atom M to form a carbonate complex with a four-membered chelate ring, so carbonic acid, carbonate ion, or carbonate salts are among the simplest chelating agents. A similar example is a dicarboxylic acid such as oxalic acid, which has two acidic groups and forms an oxalato complex with a five-membered chelate ring. Source: Heibonsha World Encyclopedia, 2nd Edition Information |
金属イオンに配位してキレート化合物をつくる多座配位子,あるいはそのような多座配位子となりうる化合物をいう。たとえば炭酸は二つの水素イオンを放って炭酸イオンとなり,中心原子Mに配位して4員キレート環をもつカルボナト錯体をつくるから,炭酸,炭酸イオンあるいは炭酸塩は最も簡単なキレート試薬の一つである。同様のものとして,5員キレート環をもつオキサラト錯体をつくる,酸性基二つをもつシュウ酸のようなジカルボン酸がある。
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 |
<<: Chelate resin - Chelate resin
>>: Chelate effect - Chelate effect
A city in the Vladimir Oblast in the western part ...
〘noun〙① To shake hands with someone. It is often d...
A Confucian scholar of the late Edo period. His g...
Melk is a town in the western part of the Wachau V...
…The Philippine name for some trees and their woo...
A mercury mine in Kitami, Hokkaido. It was discove...
It is an area of Kitakami City in the central-s...
…Events that were originally held in the spring a...
A gland that an animal has that secretes a liquid...
…(12) Dextrocardia A dextrocardia is a heart in w...
...French administrative law has essentially deve...
What is the disease? Blood plasma ( Conclusion ) ...
A mountain range stretching from southeastern Fuku...
A town in Aki District, eastern Kochi Prefecture, ...
...They adopted a tribal republic (Sangha) system...