Video: Photochemical isomerization yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Alkene Isomerization . A photochemical Cov tshuaj tiv thaiv tshwm sim thaum kev hloov pauv sab hauv thiab kev so ntawm lub xeev zoo siab ua rau lub xeev hauv av isomer ntawm thawj lub substrate molecule, los yog thaum lub xeev zoo siab dhau los ua ib qho kev sib txuas ntxiv mus rau lwm cov reactant molecule hauv av.
Xav txog qhov no, cov nyhuv photochemical yog dab tsi?
Photochemical tshuaj tiv thaiv, ib qho tshuaj tiv thaiv pib los ntawm kev nqus ntawm lub zog hauv daim ntawv ntawm lub teeb. Lub txim ntawm molecules 'absorbing lub teeb yog tsim ntawm lub sijhawm zoo siab lub xeev uas nws cov tshuaj lom neeg thiab lub cev muaj zog sib txawv ntawm cov khoom qub qub.
isomerization siv rau dab tsi? Isomerization Nws yog ib qho tseem ceeb rau kev hloov pauv ntawm n-butane rau hauv isobutane, muab cov khoom noj ntxiv rau alkylation units, thiab hloov pauv ntawm pentanes ib txwm thiab hexanes mus rau ntau dua branched isomers rau roj sib xyaw.
Ib yam li ntawd, isomerization txhais li cas?
Hauv chemistry isomerization yog tus txheej txheem los ntawm ib qho molecule hloov mus rau lwm lub molecule uas muaj tib lub atoms, tab sis cov atoms muaj kev sib txawv xws li. A-B-C → B-A-C (cov molecules muaj feem xyuam yog hu ua isomers).
Dab tsi yog photochemical cov tshuaj tiv thaiv muab ob qho piv txwv?
Piv txwv ntawm cov tshuaj tiv thaiv photochemical Photosynthesis : Cov nroj tsuag siv lub hnub ci zog los hloov cov pa roj carbon dioxide thiab dej rau hauv qabzib thiab oxygen. Tib neeg tsim cov vitamin D los ntawm kev raug tshav ntuj. Bioluminescence: e.g. Hauv fireflies, ib qho enzyme hauv plab catalyzes cov tshuaj tiv thaiv uas tsim lub teeb.
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