Yog vim li cas amides tsis yog qhov yooj yim yog vim muaj cov pa roj carbonyl pawg. Cov pab pawg carbonyl yog inherently electron rho tawm thiab yog li rub electron ceev kom deb ntawm pawg nitrogen. Tsis tas li ntawd, resonance delocalizes electron ceev los ntawm nitrogen. … Yog li, amides tuaj yeem yog H-bond txais.
Vim li cas amides nruab nrab thiab tsis yooj yim?
Cov khub ib leeg ntawm nitrogen yog delocalised ntau rau hauv cov kua qaub, ntawm ob qho tib si electronegative atoms oxygen thiab nitrogen. Qhov no ua rau tus khub ib leeg tsis muaj rau kev pub dawb. Li no amides yog nruab nrab thiab tsis txhob siv tus khub ib leeg pub dawb txhua tus.
Vim li cas amide tsawg dua amine?
Nrog ib qho alkyl amine, ib leeg khub electron yog nyob rau ntawm nitrogen. Txawm li cas los xij, tus khub electron ntawm ib qho amide yog delocalized ntawm nitrogen thiab oxygen los ntawm resonance. Qhov no ua rau amides tsawg tsawg piv rau alkylamines.
Are amides bases?
Piv rau amines, amides yog tsis muaj zog hauv pausthiab tsis muaj cov ntsiab lus meej acid-base hauv dej. Ntawm qhov tod tes, amides yog cov hauv paus muaj zog dua li esters, aldehydes, thiab ketones.
Puas yog amides yooj yim lossis nruab nrab?
Amides yog nruab nrab cov ntsiab lus - sib piv rau lawv cov txheeb ze ze, cov amines, uas yog qhov yooj yim. Qhov kev sib txuas ntawm amide yog kev npaj - txawm tias peb ib txwm qhia C-N txuas los ntawm ib daim ntawv cog lus,uas yuav tsum muab kev sib hloov dawb.
