Dab tsi yog chirality hauv organic chemistry?
Dab tsi yog chirality hauv organic chemistry?

Video: Dab tsi yog chirality hauv organic chemistry?

Video: Dab tsi yog chirality hauv organic chemistry?
Video: vaj xeem xais ep4 tub nousoua channel 2024, Kaum ib hlis
Anonim

Published on Jun 6, 2011. A chiral molecule yog ib hom molecule uas tsis muaj lub dav hlau sab hauv ntawm symmetry thiab yog li muaj daim iav uas tsis yog superposable. Lub feature uas feem ntau yog ua rau kev hlub tshua Nyob rau hauv molecules yog lub xub ntiag ntawm asymmetric carbon atom.

Tib neeg kuj nug, dab tsi yog txhais los ntawm chirality?

Lub sij hawm " chiral " feem ntau yog siv los piav txog cov khoom uas tsis yog superposable ntawm nws daim iav duab. Hauv chemistry, kev hlub tshua feem ntau yog hais txog molecules. Ob daim iav duab ntawm a chiral molecule yog hu ua enantiomers lossis optical isomers.

Ib yam li ntawd, txhais li cas los ntawm atomic chirality? Chiral Center Txhais . A chiral center yog txhais as ib atom nyob rau hauv ib lub molecule uas yog bonded rau plaub hom tshuaj sib txawv, tso cai rau optical isomerism. Nws yog stereocenter uas tuav ib txheej ntawm atoms (ligands) nyob rau hauv qhov chaw xws li cov qauv yuav tsis raug superimposed ntawm nws daim iav duab.

Ntawm no, dab tsi yog txhais los ntawm chirality muab piv txwv?

Cov pa roj carbon atom ncig los ntawm 4 pawg sib txawv yog hu ua chiral carbon thiab cov cuab yeej ntawm ua chiral yog kev hlub tshua . Piv txwv. 2-Butanol (los yog lwm yam piv txwv ).

Dab tsi yog qhov chaw chiral hauv organic chemistry?

Chiral molecules feem ntau muaj tsawg kawg yog ib cov pa roj carbon atom nrog plaub yam tsis muaj kev hloov pauv. Xws li cov pa roj carbon atom hu ua a chiral chaw (los yog qee zaum a stereogenic chaw ), siv organic - hais lus. Thaum saib cov molecule, nrhiav cov carbons uas hloov nrog plaub pawg sib txawv.

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