Video: Dab tsi yog stereoisomers hauv organic chemistry?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Stereoisomerism yog qhov kev npaj ntawm 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 tseem ceeb ntawm stereoisomerism yog: DiaStereomerism (xws li 'cis-trans isomerism') Optical Isomerism (tseem hu ua 'enantiomerism' thiab 'chirality')
Yog li, dab tsi yog stereoisomers piv txwv?
Qhov yooj yim tshaj plaws piv txwv ntawm geometric isomers yog cis-2-butene thiab trans-2-butene. Nyob rau hauv txhua molecule, ob daim ntawv cog lus yog nruab nrab ntawm carbons 2 thiab 3. Rau piv txwv , oleic acid yog lub npe hu ua molecular nyob rau sab laug uas nws cov tshuaj formula C18H34O2 thiab uas muaj cis taw qhia ob daim ntawv cog lus ntawm carbons 9 thiab 10.
Ib tug kuj yuav nug, dab tsi yog enantiomer hauv organic chemistry? 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.
Yog li ntawd, dab tsi yog stereoisomers hauv chemistry?
Ob lub molecules tau piav raws li stereoisomers Yog tias lawv tau ua los ntawm tib lub atoms txuas nrog tib lub sijhawm, tab sis cov atoms nyob txawv ntawm qhov chaw. Optical isomers yog cov molecules uas yog daim iav duab ntawm ib leeg. Feem ntau cov iav duab molecules no hu ua enantiomers.
Vim li cas stereoisomers tseem ceeb?
Qhov tseem ceeb ntawm stereoisomers Nyob rau hauv ib tug lom system isomers yog cov tebchaw uas muaj tib lub qauv molecular tab sis txawv qauv qauv. Stereoisomers yog isomers uas muaj tib qhov sib lawv liag ntawm cov atoms sib txuas, tab sis lawv txawv ntawm lawv qhov kev taw qhia peb sab hauv qhov 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 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 enantiomers hauv organic chemistry?
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 los yog tsis yog ob lub molecules yog enantiomers
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