2. Match the electron impact (El) mass spectrum with the correct structure from the choices below....
2. Match the electron impact (El) mass spectrum with the correct structure from the choices below. of the fragments in the El spectra of the following molecules (write the correct letter in the upper left-hand corner of the spectra). Draw the structure of the indicated fragments (*) С В OH H *(43) *(71) *(43) 100 HS--1 100- -N-113 во- 80- 60- 60- 40- 40- 20- 20- m/z m/z 3. Predict the molecular ion peak pattern (El spectrum low resolution) for...
110 2. (1 points) The mass spectrum of 2-methyl-3-pentanol is shown below. Identify the fragments. 100- MS-NU-5456 Relative Intensity 0- t THAT it 20 TH 40 E 60 TITTTTTTTT 100 50 70 m/z
11. The mass spectrum below is that of benzyl 3-methylbutanoate (see structure below). Provide a structure for the fragments at m/z 144, 129, 116, 115, 101, 99, 73, 71 and 43 (You must show the fragmentation pattern) (0.5x84 pts) 100 43 80 71 115 60 99 40 101 88 144 116 20 125 100 75 50 25 m/z 11. The mass spectrum below is that of benzyl 3-methylbutanoate (see structure below). Provide a structure for the fragments at m/z 144,...
mass spectrometry matching to graphs 1. (2 points) Match the following mass spectra below to the correct structure below. One structure per spectra. All four compounds will not be used. A) CH:CH-CH(CH3)2 B) CH:CHOHCH.CH C) CH.CH:OCHCH D) CH:CH NHCH.CH Relative Intensity 10 20 30 40 50 60 80 90 100 110 120 70 /z m Relative intensity
15. The mass spectrum of a compound appears below. The molecular ion, M+1, and M+2 peaks have intensities of 100, 6.8, and 31.8 respectively. Use the information provided to determine the formula of the compound 100 MS-NW-5495 80 60 40 20 шшшl 110 10 20 30 40 50 60 70 80 90 100 m/z Relative Intensity 15. The mass spectrum of a compound appears below. The molecular ion, M+1, and M+2 peaks have intensities of 100, 6.8, and 31.8 respectively....
i need to come up with fragments that match with my mass spectrum. The molecule is cyclopentanol. 6pts 11) MASS SPECTRUM: Mass to charge Composition Assignment Structure of Assigne (m/z) Unk 16 60 20 10 20 30 40 50 60 70 80 6pts 11) MASS SPECTRUM: Mass to charge Composition Assignment Structure of Assigne (m/z) Unk 16 60 20 10 20 30 40 50 60 70 80
is is the mass spectrum of 2-pentanol. 100 MS-NW-8471 6 80 60 40 20 omt 10 20 30 40 60 70 80 50 m/z Provide a reasonable fragmentation pathway for the indicated fragments. Make sure that you discuss the relative intensity of the same fragments. | m/z 27.0 7.6 29.0 5.3 31.0 5.0 41.0 5.8 43.0 13.7 44.0 7.5 45.0 100.0 55.0 18.7 73.0 7.1
16. A hydrocarbon with a molecular weight of 100 Da (and expected molecular ion at 100 m 2) was analyzed by mass spectrometry and gave the spectra shown below. Based on the MS spectrum and considering possible fragmentation of the hydrocarbon, which of the molecules provided corresponds to this spectrum? 100- m/z = 57 Da Relative Intensity m/z = 85 Da Expected molecular ion (not observed) 10 20 30 40 tillo el origen los 50 60 70 80 90 100...
Use the IR and MS data to elucidate the structures of the compounds below. Identify the M and other necessary peaks in the mass spectra below. Give the functional group responsible for the IR signals. IR: (1 709) sharp, strong (1607-1653) weak MS: ID 4 peaks 100- Relative Intensity orta pripreme 10 20 30 40 50 60 70 80 90 100 m/z 110 120 IR: (1753) strong (1602 - 1658) weak MS: ID 4 peaks 100 MS-NU-18 Relative Intensity 10...
1. Consider the Mass Spectrum below to answer the following questions: MS-NU-S495 Relative Intensity 0- 10 prote 20 30 40 t 50 to 60 70 m/z 80 90 100 110 a. (1 point) What is the m/z of the molecular ion peak: b. (1 point) What is the m/z value of the base peak: c. (2 point) Explain why do we observe the peak at m/z = 114 d. (2 points) The molecular formula of this compound is C.HSX. Identify...