Koj yuav paub li cas yog nws R lossis S configuration?
Koj yuav paub li cas yog nws R lossis S configuration?

Video: Koj yuav paub li cas yog nws R lossis S configuration?

Video: Koj yuav paub li cas yog nws R lossis S configuration?
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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).

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