Video: Koj npe R thiab S stereoisomers li cas?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Stereocenters tau sau npe R los yog S
Cov "sab tes" thiab "sab laug tes" nomenclature yog siv rau npe tus cov enantiomers ntawm ib qho chiral compound. Cov stereocenters tau sau npe ua R los yog S . Xav txog thawj daim duab: tus xub nkhaus yog kos los ntawm qhov tseem ceeb tshaj plaws (1) hloov mus rau qhov tseem ceeb tshaj plaws (4) hloov pauv.
Tom qab ntawd, ib tus tuaj yeem nug, koj yuav txiav txim siab qhov tseem ceeb rau R thiab S li cas?
Yog tias peb pawg projecting rau koj raug txiav txim siab tshaj plaws qhov tseem ceeb (#1) rau qis tshaj qhov tseem ceeb (#3) clockwise, ces lub configuration yog " R ”. Yog tias peb pawg projecting rau koj raug txiav txim siab tshaj plaws qhov tseem ceeb (#1) rau qis tshaj qhov tseem ceeb (#3) counterclockwise, ces lub configuration yog " S ”.
Ib yam li ntawd, S thiab R configuration yog dab tsi? Cov R / S system yog ib qho tseem ceeb nomenclature system rau denoting enantiomers. Txoj hauv kev no sau txhua qhov chaw chiral R los yog S raws li ib qho system uas nws cov neeg hloov pauv yog txhua tus muab qhov tseem ceeb, raws li Cahn-Ingold-Prelog cov cai tseem ceeb (CIP), raws li tus lej atomic.
Ntawm no, R thiab S txhais li cas hauv cov chemistry?
Ua raws li cov kev taw qhia ntawm qhov tseem ceeb ntawm 3 qhov tseem ceeb los ntawm qhov siab tshaj plaws mus rau qhov tseem ceeb tshaj plaws (qis mus rau ntau tshaj, 1<2<3). Ib tug counterclockwise kev taw qhia yog ib S (sinister, Latin rau sab laug) configuration. Lub clockwise kev taw qhia yog ib R (rectus, Latin rau txoj cai) configuration.
Puas yog R thiab S enantiomers?
Stereocenters tau sau npe R los yog S Lub npe "sab tes" thiab "sab laug" nomenclature yog siv rau lub npe cov enantiomers ntawm ib qho chiral compound. Cov stereocenters tau sau npe ua R los yog S . Xav txog thawj daim duab: tus xub nkhaus yog kos los ntawm qhov tseem ceeb tshaj plaws (1) hloov mus rau qhov tseem ceeb tshaj plaws (4) hloov pauv.
Pom zoo:
Koj npe cycloalkenes thiab alkenes li cas?
Lub ene suffix (kawg) qhia tias alkene lossis cycloalkene. Cov saw ntev tshaj plaws xaiv rau lub hauv paus npe yuav tsum suav nrog ob qho tib si carbon atoms ntawm ob daim ntawv cog lus. Lub hauv paus saw yuav tsum tau suav los ntawm qhov kawg ze tshaj ntawm ob daim ntawv cog lus carbon atom
Koj npe R thiab S compound li cas?
Stereocenters tau sau npe R lossis S Lub 'sab tes' thiab 'sab laug tes' nomenclature yog siv los sau npe cov enantiomers ntawm ib qho chiral compound. Lub stereocenters tau sau tias yog R lossis S. Xav txog thawj daim duab: lub xub nkhaus yog kos los ntawm qhov tseem ceeb tshaj plaws (1) hloov mus rau qhov tseem ceeb tshaj plaws (4) hloov pauv
Koj paub qhov txawv ntawm stereoisomers li cas?
Hauv cis isomer cov methyl pawg nyob rau tib sab; whereas lawv nyob rau sab opposite nyob rau hauv lub trans isomer.Isomers uas txawv tsuas yog nyob rau hauv lub spatial orientation ntawm lawv cov ntsiab atoms yog hu ua stereoisomers
Dab tsi yog qhov txawv ntawm cov qauv isomers thiab stereoisomers?
Cov qauv isomers muaj tib lub qauv molecular tab sis muaj kev sib txuas sib txawv ntawm cov atoms. Stereoisomers muaj cov qauv molecular zoo tib yam thiab kev npaj ntawm atoms. Lawv txawv ntawm ib leeg xwb nyob rau hauv spatial orientation ntawm pawg nyob rau hauv lub molecule
Koj sau cov npe tshuaj thiab cov qauv li cas?
Thaum sau cov mis, qhov zoo atom lossis ion los ua ntej los ntawm lub npe ntawm qhov tsis zoo ion. Lub npe tshuaj rau cov lus ntsev yog sodium chloride. Lub sij hawm lub sij hawm qhia tau hais tias lub cim rau sodium yog Na thiab lub cim rau chlorine yog Cl. Cov tshuaj formula rau sodium chloride yog NaCl