Kom tau txais geometric isomers koj yuav tsum muaj:
- txwv kev sib hloov (feem ntau suav nrog cov pa roj carbon-carbon ob daim ntawv cog lus rau kev taw qhia);
- ob pawg sib txawv ntawm sab laug-sab kawg ntawm daim ntawv cog lus thiab ob pawg sib txawv ntawm sab xis kawg.
Dab tsi yog geometrical isomers nrog piv txwv?
Ib qho piv txwv ntawm geometrical isomerism vim muaj cov pa roj carbon-carbon ob daim ntawv cog lus yog stilbene, C 14 H 12 , ntawm uas muaj ob isomers. Nyob rau hauv ib qho isomer, hu ua cis isomer, tib pab pawg nyob rau tib sab ntawm ob daim ntawv cog lus, whereas nyob rau hauv lwm yam, hu ua trans isomer, tib pab pawg nyob rau sab nraud.
Puas muaj pes tsawg geometric isomers muaj?
Plaub nonchiral, thiab ib khub chiral, rau tag nrho ntawm 6 geometric isomers (txawm tias cov enantiomers tsis yog geometric isomers ntawm ib leeg, lawv muaj kev hwm rau cov nonchiral isomers).
Koj paub li cas geometrical thiab optical isomers?
Txawm hais tias geometric isomers muaj qhov sib txawv ntawm lub cev thiab tshuaj lom neeg (piv txwv li, cis- thiab trans-2-butene muaj qhov sib txawv ntawm qhov kub thiab qhov ntom), optical isomers (tseem hu ua enantiomers) txawv ntawm ib tus yam ntxwv - lawv. kev cuam tshuam nrog lub dav hlau polarized teeb.
Puas lub ntsej muag isomer optically nquag siv?
Yog peb saib ze ntawm mer-isomer, nws muaj lub dav hlau sib luag, yog li nws yog opticallyinactive.
