What does chelation mean, what does chelation mean

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Based on the questions you provided, we will find the following: Chelation is a chemical phenomenon in which two or more molecules are joined together by chemical bonds to form a stable complex. One molecule is usually an organic molecule, and the other molecule can be an ion or another organic molecule.

This type of chemical bond is usually a coordination bond between a metal ion and a ligand, in which one or more electron pairs of the metal ion are shared by one or more atoms in the ligand, resulting in a stable complex. Chelation reactions are widespread in living organisms, for example, many enzymes and receptors on cell membranes perform their functions through chelation reactions.

What does chelation mean.

Hello, dear <>

Based on the questions you provided, we will find the following: Chelation is a chemical phenomenon in which two or more molecules are joined together by chemical bonds to form a stable complex. One molecule is usually an organic molecule, and the other molecule can be an ion or another organic molecule.

This type of chemical bond is often a coordination bond between the metal and the ligand, in which one or more electron pairs of the metal ion are shared by one or more atoms in the ligand, thus forming a stable complex. Chelation reactions are widespread in living organisms, for example, many enzymes and receptors on cell membranes perform their functions through chelation reactions.

Chelation refers to a chemical reaction in which a chemical bond between a chelating agent and a metal ion interacts to form a stable compound. In chelation, chelating agents are usually organic molecules containing multiple coordination groups, such as ethylenediaminetetraacetic acid (EDTA), etc. Metal ions are metal ions with vacant electron pairs, such as calcium ions (Ca2+), magnesium ions (Mg2+), etc.

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In chelation, the chelating agent forms a coordination bond between the lone pair of electrons in its coordination group and the electrons in the vacant orbital on the metal ion, thus forming a stable coordination compound. This stability is usually higher than that of metal ions in solution and the chelating agent itself, as the chelating agent protects the metal ions from interference or loss by other chemicals. Chelation has a wide range of applications, such as biomedicine, environmental pollution control, industrial production, etc.

Among them, the biomedical field often uses chelation mixture to remove toxic metal ions from the body; In the field of environmental pollution control, chelating agents can be used to remove the pollution of heavy metal ions in wastewater.

Chelates are cyclic in structurecomplexes, is the formation of chelating rings with the same metal ion by two or more ligandsChelationAnd get.

Complexes with a cyclic structure, consisting of a chemical reaction with two or more ligands forming chelating rings with the same metal ions.

Chelation.

Chelation reaction:

Also known as chelation or chelation effect. Chelating ligands (containing two or more ligands with cryptogon lone pair atoms) form two or more coordination bonds with the central ion at the same time.

and the formation of coordination compounds with circular structures.

i.e. the reaction of chelating [substance].

For example, ethylenediaminetetraacetic acid.

EDTA,(—oOCH2)2NCH2CH2N (CH2COO—)2] can bond with many metal ions such as Fe, Th, Hg, Cu, Ni, Pb, etc. to form five five-membered chelating rings by bonding with four (sometimes three) carboxylic acid groups and two nitrogen atoms to form specific complexes.

Metals with higher stability are targeting old-EDTA chelates.

Chelation of metals in natural water bodies and wastewater has a great impact on the migration, fate or toxicity of heavy metal elements in the environment. It has a significant response to trace metals and has a high sensitivity.

The above content refers to Encyclopedia - Chelates.

Also known as the chelation effect, chelation is called chelation when chelates are more stable for the same atom than complexes (non-chelates) formed by single-base ligands.

Chelates are generally most stable with five-membered rings and six-membered rings, and the more chelated rings formed by a complexing agent and the central ion, the more stable they are. "Chelicae" refers to the crab's large pincers, a metaphor for a multi-toothed ligand that clamps the centrosome tightly with two large pincers like a crab.

For the same atom, if the formation of a chelate is more stable than a complex formed by a single-base ligand (non-chelate), this effect is called chelation. Chelation ability is stability.

The process of bonding a central ion and two or more coordination atoms of the same multi-tooth ligand under certain conditions to form a complex with a circular structure is called chelation.

The concept of protecting minerals by bonding with absorbable organic molecules (such as amino acids, proteins, polysaccharides or volatile fatty acids) is not new, and it has become more popular in recent years, but the results have been unstable because we do not know enough about the chemical structure of these minerals.

Chelation is the process of coordination ringing between two or more coordination atoms and the same central atom in the same ligand.

The formation of chelating rings gives chelates greater stability than non-chelating complexes that are similar in composition and structure, and this effect of increasing stability caused by chelation is called chelation. For example, the chelates of ethylenediamine and metal ions are much more stable than the metal complexes of ammonia, while the metal chelates of diethylbatriamine are more stable due to the simultaneous formation of two chela.

Only 2%-10% of the inorganic iron ingested in the body is actually absorbed, and amino acids are usually added to turn the mineral into a "chelate" compound when it is turned into a digestible form. The process of forming a complex with a ring structure by the central ion and some two or more coordination atoms of the same polytooth ligand that meet certain conditions is called chelation.

Characteristics of chelates

One of the most striking properties of chelates is their thermodynamic and thermal stability. The stability of the chelating ring is similar to that of the aromatic ring. Chelates can be either uncharged, neutral molecules, the former soluble in organic solutions, and the latter soluble in water.

This property can be used to separate and analyze metal ions. The general principle of the formation of chelates between metal ions and ligands is the theory of soft and hard acids and bases, that is: hard pro-hard, soft pro-soft.

The chelates formed by metal ions and polydentate ligands are more stable than similar complexes formed by them with single-tooth ligands.