Uyichonga njani i-Diastereomers yeMolekyuli

Ngu-Arthur Winter

Xa ngaphezulu kweziko elinye le-chiral likho kwimolekyuli, unokuba nethuba lokuba ne-stereoisomers ezingazifanisiyo imifanekiso yomnye nomnye. Ezi stereoisomers ezingezizo ezesipili ziyabizwa Isitshisi .

Ngokwesiqhelo, unokuba ne-diastereomers kuphela xa imolekyuli inamaziko amabini okanye nangaphezulu.



Elona nani liphezulu lee-stereoisomers ezinokubakho kwimolekyuli ngumsebenzi we-2 n , phi n linani lamaziko e-chiral kwimolekyuli. Ke ngoko, imolekyuli enamaziko amahlanu e-chiral inokufikelela kwi-25okanye ama-stereoisomers angama-32! Njengoko inani lamaziko e-chiral lonyuka, inani lezinto ezinokubakho zestereoisomers zelo qela zanda ngokukhawuleza.

Umzekelo, imolekyuli eboniswe apha inamaziko amabini esiral.

Imolekyuli enamaziko amabini e-chiral.Imolekyuli enamaziko amabini e-chiral.

Ngenxa yokuba le molekyuli inamaziko amabini e-chiral, inokuba ne-2 iyonkeMbini, okanye ezi-4, ezinokuba zizitiriyo ezinokubakho, inye kuphela eya kuba sisithambisi semolekyuli yoqobo.

Iziqinisekiso zi stereoisomers eziyimifanekiso yesipili yomnye nomnye.

Kuba omabini amaziko e-chiral kule molekyuli ngawokucwangciswa kwe-R, i-enantiomer yale molekyuli iya kuba noqwalaselo lwe-S kuwo omabini amaziko e-chiral. Zonke ii-stereoisomers zale molekyuli zibonisiwe kumzobo olandelayo. Ezi iimolekyuli ezingezizo i-enantiomers zomnye nomnye ziimpawu zediastereom enye nenye.

Ii-stereoisomers ezine zemolekyuli enamaziko amabini e-chiral.Ii-stereoisomers ezine zemolekyuli enamaziko amabini e-chiral.