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00 Verizon 8:35 PM IR.pdf 3 of 4 Model 2: Infrared Spectroscopy Most bonds of in

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Question

00 Verizon 8:35 PM IR.pdf 3 of 4 Model 2: Infrared Spectroscopy Most bonds of intcrest to organc chemists are excited by (and infrared (1Klepon ofthe electionepetic spectrum equencies near 10 "cycles per Measurements ane made using an infrared sceter(see Figure 2 Figure 2: Diagram of Infrared Spectrometer Sampie Frequency t) By tradidion, IR spectra are printed upide-dow, so the pealks look like valleya. Another ting to look out for is that the x axis is marked in wavenumbers (nid are just another systom for measuring fequency Critical Thinking Questions What happmed to the frequencies of light that never made it to the dese 8 Light hitting the detector in Figare 2 is missing light of froguncy A, but is not structare ef the molocule in the sample tube? That in, what structural ficatures does the molecule likcly have and not have? Open With Print

Explanation / Answer

The principle of any absorption spectroscopy is very simple. The principle is while passing a spectrum of light through a sample, the sample will absorb some light frequencies. So some of the frequencies of the incident radiation will not be detected in the detector.

The samples absorb light to excite from ground state to excited state