A chromophore yog ib feem ntawm lub luag haujlwm rau nws cov xim. Cov xim uas pom los ntawm peb ob lub qhov muag yog tus tsis nqus los ntawm cov khoom cuam tshuam nyob rau hauv ib qho wavelength spectrum ntawm pom lub teeb.
Puas chromophore txaus rau xim?
Thaum ib qho chromophore txauslos faib xim rau cov khoom sib xyaw. Piv txwv li: -NO, -NO2, -N=N,=N=N-N, -N=N→O, p-quinonoid thiab lwm yam. Thaum ntau tshaj ib chromophore yuav tsum tau muab cov xim, piv txwv li. >C=O, >C=C< thiab lwm yam. Qhov no tuaj yeem ua piv txwv los ntawm ntau yam piv txwv.
Chromophore dye yog dab tsi?
Chromophore yog ib pawg ntawm atoms uas tswj cov xim ntawm cov xim. Lub sijhawm ntawd, Witt tau hais tias auxochrome yog ib pab pawg ntsev, uas pab txhim kho cov xim ntawm cov dye.
Dab tsi yog chromophore ib pawg ntawm atoms hauv cov xim sib xyaw?
Chromophore, ib pawg ntawm cov atoms thiab electrons ua ib feem ntawm ib qho organic molecule uas ua rau nws muaj xim. Related Topics: xim Dye Pigment Organic compound Auxochrome.
Koj paub li cas chromophore hauv molecule?
Chromophores uas cov pab pawg muaj π electrons tau txais π-πkev hloov pauv.
- Spectrum muaj ib pawg ze 300 mµ yuav muaj ob lossis peb qhov sib txuas.
- Absorption bands ze 270-350 mµ nrog qhov siv qis heev ɛmax 10-100 yog vim n-πkev hloov pauv ntawm carbonyl pawg.
