Video: Koj yuav paub li cas yog nws R lossis S configuration?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Vim tias qhov thib 4 qhov tseem ceeb tshaj plaws atom yog muab tso rau hauv qab, lub xub yuav tsum tshwm sim nws yog mus hla lub ntsej muag ntawm lub moos. Yog nws yog mus clockwise, ces nws yog ib R -enantiomer; Yog nws yog mus counterclockwise, nws yog ib S -enantiomer.
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.
Ib tug kuj nug, puas yog r thiab s tib yam li L thiab D? R thiab S xa mus rau qhov sib txawv ntawm cov stereoisomers. D thiab L d thiab l tsuas yog ntsuas los ntawm kev txiav txim seb cov khoom puas tig lub polarization ntawm lub teeb polarized clockwise los yog counterclockwise.
Kuj Paub, yog clockwise R lossis S?
A counterclockwise direction yog ib S (sinister, Latin rau sab laug) configuration. A clockwise direction yog ib R (rectus, Latin rau txoj cai) configuration. (1) Raws li tus naj npawb atomic thaum tsuas yog atom tam sim no thiab hauv ib pab pawg cov atom txuas ncaj qha suav nrog tus lej atomic.
R thiab S txhais li cas hauv stereochemistry?
Cahn-Ingold-Prelog system yog cov txheej txheem kev cai uas tso cai rau peb los txiav txim siab tsis meej. stereochemical configuration ntawm tej stereocenter, siv cov designations ' R ' (los ntawm Latin rectus, lub ntsiab lus sab xis) los yog ' S ' (los ntawm Latin sinister, lub ntsiab lus sab laug).
Pom zoo:
Koj yuav ua li cas paub yog tias qhov hloov pauv theem yog qhov zoo lossis tsis zoo?
Yog tias lub sijhawm hloov pauv yog xoom, qhov nkhaus pib ntawm keeb kwm, tab sis nws tuaj yeem txav mus rau sab laug lossis sab xis nyob ntawm theem hloov. Kev hloov pauv theem tsis zoo qhia txog kev txav mus rau sab xis, thiab theem zoo hloov pauv qhia tias txav mus rau sab laug
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Nyob rau hauv tsis tiav dominance ib tug heterozygous ib tug blends ob yam. Nrog codominance koj yuav pom ob qho tag nrho alleles qhia lawv cov teebmeem tab sis tsis sib xyaw whereas nrog tsis tiav dominance koj pom ob qho tag nrho alleles tab sis lawv tau muab sib xyaw
Koj yuav paub li cas yog lub chaw chiral yog R lossis S?
Kos ib qho nkhaus los ntawm thawj qhov tseem ceeb hloov pauv mus rau qhov thib ob-qhov tseem ceeb hloov pauv thiab tom qab ntawd los ntawm qhov thib peb. Yog hais tias qhov nkhaus mus clockwise, lub chiral center yog xaiv R; Yog hais tias qhov nkhaus mus counterclockwise, lub chiral center yog xaiv S
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