Video: Dab tsi yog delocalized pi bond?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
A delocalized π daim ntawv cog lus yog a pi sib nyob rau hauv uas cov electrons yog dawb txav mus rau ntau tshaj ob nuclei.
Kuj nug, dab tsi yog daim ntawv cog lus delocalized?
A daim ntawv cog lus khub uas txav ntawm ob khub sib txawv ntawm atoms yog xam delocalized . Koj tuaj yeem txheeb xyuas delocalized daim ntawv cog lus los ntawm kev txheeb xyuas qhov chaw electron nyob rau hauv ob daim ntawv sib txawv resonance; yog tias tus khub hloov qhov chaw thiab daim ntawv, nws yog delocalized.
Dab tsi yog qhov txawv ntawm localized thiab delocalized pi bonds? Localized electrons qhia tus cwj pwm zoo, a hauv zos ib khub tseem nyob ze ntawm ib lub atom, thiab a localized daim ntawv cog lus khub taug kev nruab nrab ob atoms. Resonance hybrids yuav tsum muaj qee qhov "tsis xws luag" electrons. Hauv daim ntawv cog lus delocalized , es tsis txhob lo ze ib lub atom, nws mus ntsib ob atoms.
Yog li ntawd, delocalized pi bonding yog dab tsi thiab nws piav qhia li cas?
Delocalization yog cov phenomena uas electrons los yog bonds yog transient nyob rau hauv qhov. A delocalized pib - daim ntawv cog lus txhais tau tias qhov no piv qhov system ua tau muaj nyob rau hauv ob peb conformations thiab yog li tsis yog suav tias yog nyob rau hauv ob qho tib si conformation, tab sis tag nrho cov ntawm lawv ib zaug.
Puas yog o3 puas muaj daim ntawv cog lus delocalized?
Muaj tiag muaj ib pi sib uas stretches tag nrho ntev ntawm ozone molecule. Qhov no yog qhov qis tshaj lub zog ua ke, nrog lub wavelength steretching tshaj ob zaug ntawm qhov ntev ntawm cov molecule. Pi sib sib hauv ozone delocalized tshaj tag nrho peb cov pa oxygen. Delocalization yog stabilizing heev.
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