Video: Dab tsi yog enantiomers hauv organic chemistry?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Enantiomers yog chiral molecules uas yog daim iav duab ntawm ib leeg. Tsis tas li ntawd, cov molecules yog non-superimposable ntawm ib leeg. Qhov no txhais tau hais tias cov molecules tsis tuaj yeem muab tso rau saum ib leeg thiab muab tib lub molecule. Nws yog qee zaum nyuaj los txiav txim siab seb puas yog ob lub molecules yog cov enantiomers.
Tom qab ntawd, qhov txawv ntawm tus enantiomer thiab diastereomer yog dab tsi?
Muaj ob hom stereoisomers- cov enantiomers thiab cov neeg txom nyem . Enantiomers muaj cov chaw chiral uas yog daim iav duab thiab tsis yog superimposable. Cov neeg txom nyem muaj cov chaw chiral uas tsis yog superimposable tab sis tsis yog daim iav duab. Muaj peev xwm muaj ntau tshaj 2 nyob ntawm seb muaj pes tsawg tus stereocenters.
Tsis tas li ntawd, Stereocenter organic chemistry yog dab tsi? Stereocenter (chiral center): Ib qho atom nrog peb lossis ntau qhov sib txawv, kev sib hloov ntawm ob ntawm cov ntawv txuas no ua rau lwm tus stereoisomer. Feem ntau, tab sis tsis txwv rau, ib qho sp3 (tetrahedral) carbon atom bearing plaub yam sib txawv.
Ib yam li ntawd, nws yog nug, dab tsi yog cov piv txwv ntawm enantiomers?
Daim duab 2.3D. 1: Enantiomers D-alanine thiab L-alanine yog piv txwv ntawm enantiomers los yog iav duab. Tsuas yog L-forms ntawm amino acids yog siv los ua cov proteins. Organic compounds uas muaj chiral carbon feem ntau muaj ob lub qauv uas tsis yog superposable.
Mesomers yog dab tsi?
mesomers yog ib hom kev sib txuas uas qhov sib hloov ntawm lub dav hlau polarized yog xoom. i.e yuav yooj yim, mesomers yog hom organic tebchaw uas muaj ob chiral carbons tam sim no thiab cov ob zoo sib xws, yog li net rotation yog xoom. Meso compound yog ib qho achiral compound uas muaj chiral chaw.
Pom zoo:
Dab tsi yog qhov txawv ntawm cov chemistry thiab organic chemistry?
Organic chemistry yog suav tias yog ib qho kev qhia ntawm chemistry. Thaum lub sij hawm lub kaus dav dav 'chemistry' yog kev txhawj xeeb nrog kev sib xyaw thiab kev hloov pauv ntawm txhua yam teeb meem, cov khoom siv tshuaj lom neeg tsuas yog txwv rau kev kawm ntawm cov organic tebchaw xwb
Dab tsi yog ISO thiab Neo hauv organic chemistry?
Lub prefix 'iso' yog siv thaum tag nrho cov carbons tshwj tsis yog tsim cov saw txuas ntxiv. Cov ntawv ua ntej 'neo' yog siv thaum tag nrho tab sis ob lub carbons tsim cov saw txuas txuas ntxiv, thiab ob qho carbons no yog ib feem ntawm pawg davhlau ya nyob twg tert-butyl
Dab tsi yog stereoisomers hauv organic chemistry?
Stereoisomerism yog qhov kev npaj ntawm cov atoms hauv cov molecules uas nws qhov kev sib txuas tseem zoo ib yam tab sis lawv qhov chaw nyob sib txawv hauv txhua isomer. Ob hom stereoisomerism yog: DiaStereomerism (xws li 'cis-trans isomerism') Optical Isomerism (tseem hu ua 'enantiomerism' thiab 'chirality')
Dab tsi yog recrystallization hauv organic chemistry?
Hauv chemistry, recrystallization yog cov txheej txheem siv los ntxuav cov tshuaj. Los ntawm dissolving ob qho tib si impurities thiab ib tug compound nyob rau hauv ib tug tsim nyog cov kuab tshuaj, tog twg los xav tau compound los yog impurities yuav raug tshem tawm los ntawm cov tshuaj, tawm hauv lwm yam
Dab tsi yog prefix hauv organic chemistry?
Lub npe prefix los ua ntej lub molecule. Lub npe ua ntej ntawm lub npe molecule yog nyob ntawm tus naj npawb ntawm carbon atoms. Piv txwv li, ib tug saw ntawm rau carbon atoms yuav muab npe siv lub prefix hex-. Lub ntsiab lus ntawm lub npe yog qhov xaus uas yog siv los piav qhia txog hom tshuaj lom neeg hauv cov molecule