can you interpret the mass spectrum and assign the mass fragments ( write the strcture )...
The following is the mass spectrum of Niacin. Can you please
interpret each of the peaks seen in the mass spectrum and what they
correspond to on the Niacin compound?
Niacin Mass Spectrum Relative Intensity LES .45 1718 2025262728 No 89 9495 III. 6162366566768 70 60 72757 11,80 80 122| 20 30 40 50 70 100 1 10 120 m/z
1) Which compound gives the following spectra? For the 'H-NMR assign all signals. Interpret base peak and mole peak in the mass spectrum if a mole peak exists. Assign at least two "C signals. How does the IR spectrum support your findings? (12 pts.) 100- Relative Intensity 0- 20 40 60 80 100 140 160 180 200 220 120 m/ 200 180 160 140 120 100 80 60 40 20 0 ppm t6H 9,4H 11H d, 2 H 9 8...
(1) Determine the Degree of unsaturation (2) Completely assign all relevant peaks in the IR spectrum (3) Completely assign all peaks in the 13C NMR spectrum (4) Completely assign all peaks in the 1H NMR spectrum (5) Provide the structures (not the molecular formulas) of the ions: 102 and 120 in the mass spectrum (6) Provide the correct structure for this molecule. Problem 116 IR Spectrum nuomut 4000 1600 1200 So CHON 40 80 120 160 13C NMR Spectrum (500...
(1) Determine the Degree of unsaturation (2) Completely assign all relevant peaks in the IR spectrum (3) Completely assign all peaks in the 13C NMR spectrum (4) Completely assign all peaks in the 1H NMR spectrum (5) Provide the structures (not the molecular formulas) of the ions: 102 and 120 in the mass spectrum (6) Provide the correct structure for this molecule. Problem 116 IR Spectrum nuomut 4000 1600 1200 So CHON 40 80 120 160 13C NMR Spectrum (500...
Which compound gives the following spectra?
For the 1H-NMR assign all signals. interpret mol peak and base peak
in the mass spectrum if a mole peak exists. Assign at least two 13C
signals. How does the IR spectrum support your finding?
Check 200 180 160 120 80 60 40 20 0 140 a 100 ppm s, 3H t, 3 H d. 2 a. 2 H d. 2H s, 1 H 1 10 9 8 7 6 4 3 2 1...
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
The mass spectrum of 2,6-dimethylheptan-4-ol is shown in appendix A. a) Draw the structure of this compound. b) Propose structures for the fragments at m/z 87, 111 and 126. 100 80 60 abundance 40 87 20 111 126 0 10 III 100'110' 120' 130 140 150 160 20 30 40 50 60 70 80 90 m/z.
Suggest a composition for the halogen compound whose mass
spectrum is shown below and assign the labeled peaks.
127 100 173 160 158 162 25 48 TITTHTT 160 170 91 208 79 35 160 173 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 m/z
127 100 173 160 158 162 25 48 TITTHTT 160 170 91 208 79 35 160 173 30 40 50 60 70 80 90 100...
For spectrum #4, assign the fragments and parent radical ion at
m/z ratios of 30, 73.
Unknown Mass Spectrum #4 C,H,N, 39 41 44 010 70740 50 53 56 st L
Problem 19 IR Spectrum 2000 1600 1200 800 100 Mass Spectrum No significant UV absorption above 220 nm 40 M+ 147149 40 80 120 160 200 240 280 m/e 3C NMR Spectrum (100 MHE, CDC, solution) proton decoupled 200 160 120 40 0 8(ppm) H NMR Spectrum 22 ppm 8 5 2 δ(ppm)