Taw qhia rau Chelating Agents

Cov hlau atoms lossis ions cuam tshuam nrog ligands uas muaj ob lossis ntau qhov sib koom ua ke ntawm atoms los ua ib qho kev sib txuam nrog cov qauv cyclic, uas yog hu ua chelate. Cov tshuaj ligand no tuaj yeem tsim chelates hu ua tus neeg saib xyuas chelate, tseem hu ua tus neeg sawv cev ua haujlwm. Kuj tseem hu ua chelate ligand, chelating pawg lossis multidentate ligand.
Muaj ob lossis ntau qhov sib koom ua ke atoms hauv ligand, thiab lawv tsim lub nplhaib chelate nrog lub hauv paus atom (lossis ion) tib lub sijhawm. Vim lub nplhaib-forming nyhuv ntawm tus neeg sawv cev chelates, chelates ruaj khov dua li cov uas tsis yog-chelating kev sib koom ua ke nrog cov khoom sib xws thiab cov qauv.
Feem ntau cov chelates yog cov organic ligands. Tus lej loj tshaj plaws ntawm cov neeg ua haujlwm chelating pom txog tam sim no mus txog kaum plaub cov hniav. Kev sib koom ua ke ntawm cov atoms feem ntau hauv cov neeg ua haujlwm chelate yog oxygen thiab nitrogen, tom qab ntawd sulfur, phosphorus, arsenic, thiab lwm yam.
"Chelate" yog siv los piav txog hom kev sib xyaw no vim tias cov qauv molecular zoo li ob lub "clamps" loj ntawm "crab" uas clamp hlau atoms lossis ions.