Vim yog - hybridized nplhaib carbon, cyclopentadiene (=16) tsis muaj ntxhiab, vim nws tsis muaj qhov tsis muaj kev cuam tshuam cyclic π electron huab. … Txawm li cas los xij, nws tsis ua raws li Hückel txoj cai, vim nws muaj 4 π electrons. Yog li ntawd, nws yog antiaromatic.
Vim li cas cov cyclopentadiene hauv yog cov tsis muaj ntxhiab tsw?
Cyclopentadiene tsis yog ib qho tshuaj tsw qab vim muaj sp3 hybridized nplhaib carbon ntawm nws lub nplhaib vimuas nws tsis muaj qhov tsis cuam tshuam los ntawm cyclic pi-electron huab.
Vim li cas cyclopentadienyl cation yog antiaromatic thiab cyclopentadienyl anion yog aromatic?
Nyob rau hauv cov ntaub ntawv ntawm cyclopentadienyl anion, muaj yog 6 electrons hauv pi system. Qhov no ua rau nws muaj ntxhiab tsw. Lub cycloheptatrienyl anion muaj 8 electrons nyob rau hauv nws pi system. Qhov no ua rau nws antiaromatic thiab tsis ruaj khov heev.
Vim li cas cyclopentadienyl anion thiaj li muaj ntxhiab?
Lub cyclic cyclopentadienyl anion yog cov qauv, nws muaj lub voj voog tsis muaj kev cuam tshuam π electron huab, thiab nws ua tau raws li Hückel txoj cai, vim nws muaj 41 + 2 (n=1) π electrons. Yog li ntawd, cov cyclopentadienyl anion yog ib hom tshuaj tsw qab uas ruaj khov.
Vim li cas Cycloheptatrienyl cation ruaj khov dua Cycloheptatrienyl anion?
Teb: Lub cycloheptatrienyl cation muaj ntau cov qauv resonance, yog li tus nqi tuaj yeem raug delocalized tshaj tag nrho xya carbon atoms.
