Given the parent compound, draw the mass spectrum fragment that is observed at m/z 43. Include any hydrogen atoms and the positive charge.
Given the parent compound, draw the mass spectrum fragment that is observed at m/z 43. Include...
Given the parent compound, draw the mass spectrum fragment that is observed at m/z 71. Include any hydrogen atoms and the charge. Given the parent compound, draw the mass spectrum fragment that is observed at m/z 71. Include any hydrogen atoms and the charge.
The mass spectrum of pentanal shows a peak at m/z 43. The molecular weight of pentanal is 86. Draw the electron flow and products for the formation of the cation, m/z 43 and radical fragment. ? + ? M: 86 m/z 43 cation (M-43) radical
Fill in the box for Methyl acetylacetate Mass spectrum (5 pts): m/z value Charged Fragment Fragment Lost 116 N/A 85 43
4. Propose a structure for a molecule whose mass spectrum shows a parent ion at m/z 100 with a base peak at m/z 43, an IR peak at 1720 cm' which gave the following 'H NMR spectrum. 33 N - PPM 5. Propose a structure for a molecule whose mass spectrum shows a parent ion at m/z 100 with a base peak at m/z 43, an IR peak at 1720 cm' which gave the following 'H NMR spectrum. doublet 2...
1. Give the fragment at m/z 42 in the mass spectrum of propan-1-ol. a) CH3CH=CH2+ b) CH3CH=CH2• c) CH3CH=CH2— d) CH3CH=CH2 2. Identify a possibility for a fragment at m/z 43 in the mass spectrum. a) CH3CH2CH2+ b) CH3CH2CH3+ c) CH2=C=CH2+ d) CH3CH=CH2+
29. The mass spectrum of the compound shown below has significant fragmentation peaks at m/z 85, 58, 57, 43, and 42. which two of these peaks are due to α-cleavage, and which one of therm is due to a McLafferty rearrangement? 30. Draw the expected 'H NMR spectrum for PhC02CH(CH3)2. Show correct shifts, multiplicities, and # of H-atoms. Finally, indicate which diagnostic IR absorptions you would expect to see for this compound. 6 4 2 0 PPM IR absorbances:
2. Draw the structure of the cation responsible for the base peak (m/z=58) in the mass spectrum of 3-aminopentane shown below: 3. Below is given the mass spectrum of a simple alkane. What is the chemical formula of the alkane? What is the name of the alkane? Explain how you determined the exact structure of the alkane from the observed fragments. 4. Below is a mass spectrum of an ester. Identify the ester. Consider that the dominant fragmentation pathway involves...
Information Esch spectra below was obtained from a pure compound. Mass Spectrum parent peaks (M) are listed for al examples. R peaks listed are strong is unless otherwise indicated forsinkove 1500 cm NMR spectra, the integ r en in amber of hydrogen (H) or as a relative ratio Important coupling on webstedet the peak for some examples for some spectra, an inset (grey bond is also given showing a room on an important part of the spectrum Mass Spectrometry (not...
18. The mass spectrum of 2-methylpentan-3-ol is shown below. Draw the structure of the fragment ions of m/z= 73 and 59. Relative abundance (%) TTT 10 20 80 80 100 120 mi
5. Draw a structure for and name a compound that is consistent with compound that is consistent with the following MS. abundance 73 M 80 90 100 110 120 130 140 150 160 10 20 30 40 50 60 70 m/z Question 5: Structure and name: Mass Spectrum (include the molecular ion) Observed Fragment & MW Expected MW Fragmentation type Explanation: