Cyclopentadienyl anion yog qhov muaj ntxhiab tsw.
Yuav ua li cas yog aromatic?
Aromatic compounds yog cov tshuaj sib txuas (feem ntau yog cov organic) uas muaj ib lossis ntau lub nplhaib nrog pi electrons delocalized tag nrho txoj kev nyob ib ncig ntawm lawv … Hauv cov tebchaw no, tsawg kawg yog ib qho carbon atom hloov los ntawm ib qho ntawm heteroatoms oxygen, nitrogen, lossis sulfur.
Yuav ua li cas cov tebchaw hauv qab no puas muaj ntxhiab?
Benzene molecule yog aromatic.
Puas muaj pes tsawg tus hauv qab no muaj ntxhiab tsw?
Ntawm cov hauv qab no, muaj pes tsawg tus aromatic? Cov lus teb raug yog ' 3'.
Qhov twg hauv qab no yog qhov tsw qab ua rau koj cov lus teb?
Ua tiav cov kauj ruam los ntawm kev daws teeb meem:
Txhua lub atom tsim cov cyclic compound yuav tsum tuaj yeem koom nrog hauv delocalizing cov electrons los ntawm kev muaj p-orbital lossis ib khub tsis sib koom ntawm electrons. … Nws yog cyclic thiab planer. Tsis tas li ntawd, vim qhov muaj 4 (n + 2) Πe-, nws ua raws Huckel txoj caithiab yog li ntawd, nws yog aromatic.
