1. The two mass spectra below correspond to two isomers of CSH10O2: methyl butanoate and valeric acid. Match the spectrum with the appropriate compound. Place the m/z ratio and the structures (show all atoms) for the labeled fragments in the table below. 100 - Compound HS-NU-1700 80 - Methyl butanoate 60 40 CH3 H3C 20 10 20 30 40 50 60 70 80 90 100 m/z 100 - Compound HS-NU-3125 3 80 Valeric acid 60 - 4 40 H3C. HO, 20 - 10 20 30 40 50 60 70 80 90 100 m/z Fragment 1 74 Fragment 2 Fragment 3 Fragment 4 87 m/z Fragment
Analyzing Infrared Spectra
The electromagnetic radiation or frequency is classified into radio-waves, micro-waves, infrared, visible, ultraviolet, X-rays and gamma rays. The infrared spectra emission refers to the portion between the visible and the microwave areas of electromagnetic spectrum. This spectral area is usually divided into three parts, near infrared (14,290 – 4000 cm-1), mid infrared (4000 – 400 cm-1), and far infrared (700 – 200 cm-1), respectively. The number set is the number of the wave (cm-1).
IR Spectrum Of Cyclohexanone
It is the analysis of the structure of cyclohexaone using IR data interpretation.
IR Spectrum Of Anisole
Interpretation of anisole using IR spectrum obtained from IR analysis.
IR Spectroscopy
Infrared (IR) or vibrational spectroscopy is a method used for analyzing the particle's vibratory transformations. This is one of the very popular spectroscopic approaches employed by inorganic as well as organic laboratories because it is helpful in evaluating and distinguishing the frameworks of the molecules. The infra-red spectroscopy process or procedure is carried out using a tool called an infrared spectrometer to obtain an infrared spectral (or spectrophotometer).
![1.
The two mass spectra below correspond to two isomers of C5H10O2: methyl
butanoate and valeric acid. Match the spectrum with the appropriate compound. Place the
m/z ratio and the structures (show all atoms) for the labeled fragments in the table below.
100 -
Compound
MS-NU-1708
Methyl butanoate
80 -
1
60 -
40 -
CH3
2
H3C
20 -
10
20
30
40
50
60
70
80
90
100
m/z
100 -
Compound
MS-NU-3125
3
80 -
Valeric acid
60 -
4
40 -
H3C
20 -
10
20
30
40
50
60
70
80
90
100
m/z
Fragment 1
Fragment 2
Fragment 3
Fragment 4
m/z
74
87
Fragment
Relative Intensity](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F4e9e27b7-40cf-40d1-9136-ff8a1242bad1%2F320b1938-f803-4b4d-8f4a-d5fd18418d84%2Fly8aopo_processed.jpeg&w=3840&q=75)
![The three compounds shown below are structural isomers of each other. Match
each compound with its corresponding mass spectrum and draw the fragment ion
corresponding to the base peak in each.
b.
а.
c.
с.
HO
100 -
Compound
80 -
60 -
Fragment
40-
20 -
10
20
30
40
50
60
70
80
90
m/z
100 -
Compound
HS-NU-0749
80 -
60-
Fragment
40 -
20 -
10
20
30
40
50
60
70
80
m/z
100 -
Compound
HS-NU-1103
80 -
60 -
Fragment
40 -
20 -
10
20
30
40
50
60
70
80
m/z
Relative
Intensity
Relative Intensity
Relative Intensity](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F4e9e27b7-40cf-40d1-9136-ff8a1242bad1%2F320b1938-f803-4b4d-8f4a-d5fd18418d84%2F430sefo_processed.jpeg&w=3840&q=75)
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