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词汇 Linkage isomers
分类 英语词汇 英语翻译词典
释义

Linkage isomers

中文百科

键合异构 Linkage isomerism

(重定向自Linkage isomers)
[Co(NH3)5(NO2)]2+的两种键合异构体。

键合异构是配位化合物结构异构的一种形式,配体通过不同的配位原子与中心原子配位。生成的配合物称为键合异构体,配体称为两可配体

英语百科

Linkage isomerism 键合异构

(重定向自Linkage isomers)
Structures of the two linkage isomers of [Co(NH3)5(NO2)]2+.

Linkage isomerism is the existence of coordination compounds that have the same composition differing with the connectivity of the metal to a ligand.

Typical ligands that give rise to linkage isomers are:

Examples of linkage isomers are violet-colored [(NH3)5Co-SCN] and orange-colored [(NH3)5Co-NCS]. The isomerization of the S-bonded isomer to the N-bonded isomer occurs intramolecularly. In the complex, dichlorotetrakis(dimethyl sulfoxide)ruthenium(II), linkage isomerism of dimethyl sulfoxide ligands can be observed in the NMR spectrum due to the effect of S vs. O bonding on the methyl groups of DMSO. The proper notation for linkage isomerism is the kappa notation where the atom directly bonding to the metal is proceeded by the lowercase Greek letter kappa; κ. For example, NO2 is represented as nitrito-κ-N and nitrito-κ-O, replacing the old system of trivial names such as nitro and nitroso.

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