Carbon nrog ob daim ntawv cog lus yeej tsis chiral. Txhawm rau kom nws ua chiral, nws yuav tsum muaj plaub qhov sib txawv, thiab nws kuj tsis tuaj yeem zoo ib yam rau nws daim iav duab.
Yuav ua li cas ob daim ntawv cog lus chiral?
Chiral molecules feem ntau muaj tsawg kawg yog ib qho carbon atom nrog plaub yam tsis muaj kev hloov pauv. … Nej yuav tsis muaj carbons rau ob npaug los yog triple bonds yog chiral centers vim lawv tsis tuaj yeem muaj daim ntawv cog lus rau plaub pawg sib txawv.
Qhov txiaj ntsig ntawm ob daim ntawv cog lus yog dab tsi?
Kev taw qhia ntawm cis ob daim ntawv cog lus nce cov nqi so ntawm cov saw tsis txaus ntseeg nrog kev hwm rau cov saturated alkaneNtawm qhov tod tes, coupling cuam tshuam nyob rau hauv lub torsional hloov nyob ib ncig ntawm ib tug trans ob daim ntawv cog lus ua rau cov dynamics ntawm no unsaturated saw zoo ib yam li cov saturated ib.
Puas alkene be chiral?
Alkenes tsis muaj classical chirality, yog li feem ntau, ib qho chaw stereogenic sab nraud yuav tsum tau qhia. Txawm li cas los xij, los ntawm kev kaw cov alkene rau hauv kev sib haum xeeb los ntawm kev siv lub achiral buckle tso cai rau kev tsim cov chiral alkene inherently.
Puas molecules nrog ob daim ntawv cog lus ua Stereocenters?
Cov pa roj carbon atoms uas tsim C=C ob daim ntawv cog lus hauv 2-butene hu ua stereocenters lossis stereogenic atoms. Lub stereocenter yog ib qho atom uas qhov kev sib hloov ntawm ob pawg hloov ib lub stereoisomer rau lwm tus. Cov pa roj carbon atoms hauv C=C ob daim ntawv cog lus hauv 2-butene, piv txwv li, yog stereocenters.
