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chelate

螯合; 螯合物; 螯形的

WordNet (r) 3.0 (2006) (WordNet)

chelate
adj 1: relating to or characterized by chelation [synonym:
{chelate}, {chelated}]
2: having or resembling chelae or claws
n 1: a heterocyclic compound having a metal ion attached by
coordinate bonds to at least two nonmetal ions [synonym:
{chelate}, {chelate compound}]
v 1: form a chelate, in chemistry

The Collaborative International Dictionary of English v.0.48 (gcide)

Chelate \Che"late\, a. (Zool.)
Same as {Cheliferous}.
[1913 Webster]

chelate \che"late\, n. (Chem.)
a compound formed by combination of a metal ion in solution
with a compound containing heteroatoms (such as oxygen or
nitrogen), in which at least two heteroatoms are bound to the
metal. The bonds may be covalent or non-covalent. Chelates in
some cases have very low dissociation constants, and organic
compounds ({chelating agents}) which form such chelates are
therefore used to reduce the concentration of free metal ions
in solution.
[PJC]

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英文字典中文字典相关资料:

Chelation - Wikipedia
Chelation ( kiːˈleɪʃən ) is a type of bonding of ions and their molecules to metal ions It involves the formation or presence of two or more separate coordinate bonds between a polydentate (multiple bonded) ligand and a single central metal atom [1][2] These ligands are called chelants, chelators, chelating agents, or sequestering agents
What Is a Chelate in Chemistry? - ThoughtCo
A chelate is an organic compound formed when a polydentate ligand bonds to a central metal atom Chelation, according to the IUPAC , involves the formation of two or more separate coordinate bonds between the ligand and central atom
Chelate | Chelating Agents, Complexes Compounds | Britannica
chelate, any of a class of coordination or complex compounds consisting of a central metal atom attached to a large molecule, called a ligand, in a cyclic or ring structure An example of a chelate ring occurs in the ethylenediamine-cadmium complex:
Chelation - Chemistry LibreTexts
The chelate effect can be seen by comparing the reaction of a chelating ligand and a metal ion with the corresponding reaction involving comparable monodentate ligands For example, comparison of the binding of 2,2'-bipyridine with pyridine or 1,2-diaminoethane (ethylenediamine=en) with ammonia
Chelate - Complex, Example, Uses, Facts and FAQs - Vedantu
Let us discuss the chelate meaning, a chelate is a compound that has two or more coordinate or dative bonds between a ligand (usually organic) and a central metal atom Chelation Definition- Chelation is a phenomenon or the ability of ions and molecules to form bonds with metal ions

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