Ethylenediamine is a well-known bidentate chelating ligand for coordination compounds, with the two nitrogen atoms donating their lone pairs of electrons when ethylenediamine acts as a ligand. It is often abbreviated "en" in inorganic chemistry.

2023年6月30日 · Ethylenediamine (en) is a bidentate ligand that forms a five-membered ring in coordinating to a metal ion M. Polydentate ligands range in the number of atoms used to bond to a central metal atom or ion.

The en ligand is an example of a multidentate (or chelate) ligand which may form more than one coordinating bond per molecule, while the $\ce{NO2^-}$ and $\ce{CN-}$ are monodentate ligands.

2021年7月10日 · In the complex [Co (en) 3] 3+, there are three bidentate en ligands, and the coordination number of the cobalt (III) ion is six. The most common coordination numbers are two, four, and six, but examples of all coordination numbers from 1 to 15 are known.

Bidentate ligands. Bidentate ligands have two lone pairs, both of which can bond to the central metal ion. The two commonly used examples are 1,2-diaminoethane (old name: ethylenediamine - often given the abbreviation "en"), and the ethanedioate ion (old name: oxalate).

The ions or molecules that bind to transition-metal ions to form these complexes are called ligands (from Latin, "to tie or bind"). The number of ligands bound to the transition metal ion is called the coordination number.

Rule 1: If ions are present, name the cation first, followed by the anion. Rule 3: Specify the identity, number, and as appropriate, isomerism of the ligands present in alphabetical order by ligand name. Rule 5: Specify the valence of the metal.

Ligands play a vital role in chemistry, particularly in coordination compounds. A ligand is a molecule or ion that can donate a pair of electrons to a central metal atom or ion. The donated electron pair forms coordinate bonds with the metal, forming coordination compounds.

In coordination chemistry, a ligand [a] is an ion or molecule with a functional group that binds to a central metal atom to form a coordination complex. The bonding with the metal generally involves formal donation of one or more of the ligand's electron pairs, often through Lewis bases. [1]

2024年1月30日 · Ligands are ions or molecules that form a bond with the central atom of a coordination compound by donating its pair of electrons to it. A ligand may be positively charged, negatively charged, or neutral.