Ntawm qhov tod tes, heteromuclear diatomic molecules zoo li HCI, CO, TSIS MUAJ thiab lwm yam . thiab polyatomic molecules zoo li CO2, H2O, CH4 thiab lwm yam. uas qhia txog kev hloov pauv ntawm lub sijhawm dipole hauv qee hom kev co spectra thiab yog hais tias yog infrared-active.
Lub molecule twg tsis muab kev vibrational spectra?
Teb: homonuclear diatomic molecule zoo li H2, O2, N2 thiab lwm yam. uas tsuas muaj zog ncab / vibrations thiab tsis muaj dabtsi yog khoov / vibrations, lub dipole lub sij hawm tsis hloov thaum vibration. Yog li cov molecules no tsis muab kev vibration spectra piv txwv li lawv tau hais tias yog infrared-infrared
hom molecules dab tsi nthuav tawm kev vibrational rotational spectra thiab vim li cas?
Kev piav qhia: Hf qhia kev sib hloov thiab lossis kev vibrational spectra. Qhov no yog vim tsis zoo li cov molecules ntawm, CO thiab NO; Hf tsis yog linear molecule. Lub rotational spectra sib haum rau lub zog ntawm microwave hluav taws xob.
Qhov twg hauv qab no yog piv txwv ntawm kev vibrational spectroscopy?
Vibrational spectroscopy suav nrog ntau cov tswv yim, tab sis qhov tseem ceeb tshaj plaws yog mid-infrared (MIR), ze-IR (NIR), thiab Raman spectroscopy. Ob leeg MIR thiab Raman spectroscopy muab cov yam ntxwv tseem ceeb vibrations uas yog siv rau elucidation ntawm molecular qauv.
Nyob hauv cheeb tsam twg yog vibrational spectra tau txais?
Infrared spectroscopy (IR spectroscopy lossis Vibrational Spectroscopy) yog spectroscopy uas cuam tshuam nrog thaj tsam infrared ntawm electromagnetic spectrum, uas yog lub teeb nrog lub wavelength ntev thiab qis dua li pom. teeb.
