Video: Qhov twg yog qhov ruaj khov tshaj dawb radical?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
triphenylmethyl radical
Raws li txoj cai, dab tsi yog cov dawb radicals uas yog cov dawb radical ruaj khov tshaj plaws thiab yog vim li cas?
Ntau dua cov phenyl pawg ruaj khov dua yog cov dawb radical . Dawb radicals kuj yog luv luv-nyob heev reactive tshuaj hom vim hais tias ntawm lub zog nyiam ntawm cov pa roj carbon atom nqa cov khib electron kom tau ib tug. ntau electron ua kom tiav nws octet.
Kuj Paub, qhov twg Carbocation ruaj khov tshaj? Kev ruaj ntseg ntawm Alkyl Carbocations Kom meej meej, tertiary carbocation yog cov ruaj khov , raws li nws nyob ib puag ncig los ntawm peb lwm cov pa roj carbon atom uas qhia lub nra ntawm nws cov nqi zoo.
Yog li ntawd, vim li cas tertiary dawb radical feem ntau ruaj khov?
Yog vim li cas dawb radicals generated hauv ib kawm ntawv qib siab carbon ruaj khov dua ? Dawb radicals ntawm kawm ntawv qib siab carbons yog ruaj khov dua dua Secondary thiab Primary vim cov radical yog stabilized los ntawm hluav taws xob los ntawm lwm pab pawg neeg txuas thiab nyob rau hauv cov ntaub ntawv no nws yuav yeej yog hyperconjugation.
Puas yog dawb radical electrophilic?
Dawb radical tsis yog nucleophile lossis ib qho electrophile vim nws tsis nrhiav qhov zoo los yog tsis zoo them reactants. Dawb radical yog hom tsiaj uas tsis muaj nqi (Xero lossis Tsis Muaj Nqi). Hluav taws xob yog ib hom electron hlub; i.e lawv muaj tus nqi zoo.
Pom zoo:
Qhov twg diene ruaj khov tshaj?
Qhov kev sib txuas ntxiv ntawm kev sib raug zoo ntawm cov uas nyob ib sab π systems ua rau cov conjugated dienes yog hom kev ruaj khov tshaj plaws ntawm diene. Conjugated dienes yog kwv yees li 15kJ / mol lossis 3.6 kcal / mol ruaj khov dua li cov alkenes yooj yim
Dab tsi yog qhov hnyav tshaj plaws uas muaj tsawg kawg yog ib qho isotope ruaj khov?
Bismuth-209 (209Bi) yog lub isotope ntawm bismuth nrog ntev tshaj plaws paub ib nrab-lub neej ntawm ib tug radioisotope uas undergoes α-decay (alpha decay). Nws muaj 83 protons thiab cov khawv koob ntawm 126 neutrons, thiab atomic mass ntawm 208.9803987 amu (atomic mass units). Bismuth-209. General Protons 83 Neutrons 126 Nuclide data Ntuj abundance 100%
Yam khoom twg tsis muaj qhov ruaj khov thiab tsis muaj qhov ntim ruaj khov?
Cov theem ntawm cov teeb meem uas tsis muaj qhov ntim ruaj khov thiab tsis muaj qhov ruaj khov yog cov roj. Cov roj tsis muaj qhov ruaj khov
Lub caij twg yog lub zog ruaj khov tshaj plaws?
Yog li, nyob rau hauv ib lo lus, hlau yog ruaj khov heev. Tab sis, ua li cas txog helium thiab lwm yam roj av noble? Lawv suav hais tias yog cov ntsiab lus ruaj khov tshaj plaws nyob rau hauv tag nrho lub sijhawm teem sijhawm
Dab tsi yog qhov yuam kev loj tshaj plaws yog tias Irina ntsuas qhov ntev ntawm nws lub qhov rais li 3.35 feet qhov yuam kev loj tshaj plaws yog taw?
Kev daws: Qhov yuam kev loj tshaj plaws hauv kev ntsuas ntsuas tau txhais tias yog ib nrab ntawm qhov ntsuas ntsuas