Label the H on the picture For example: (2H) , (3H) Unknown #4 Additional 13C peak...
C9H12 13C NMR 7 peaks 1H NMR δ 1.13 (triplet, 3H); δ 1.71 (multiplet, 2H); δ 2.64 (triplet, 2H); δ 7.34 (multiplet, 5H) Degree of Unsaturation _______ Draw the structure of your compound and indicate the ppm of each of the H’s. 2. C5H10O2 13C NMR 5 peaks 1H NMR δ 0.93 (triplet, 3H); δ 1.70 (multiplet, 2H); δ 2.25 (triplet, 2H); δ 3.59 (singlet, 3H) Degree of Unsaturation _______ Draw the structure of your compound and indicate the ppm...
C3H100 H-NMR 5 Integration (from shielded to less shielded) - 3H,2H,2H, 3H 4. Please use what you know about 'H NMR (# of Peaks, Chemical Shift, Integration of peaks, and splitting to come up with and justify a reasonable structure for the following molecule. Note: The molecules will have the chemical formula as stated. C8H100. ?H-NMR Integration (from more shielded to less shielded) - 3H,2H,2H, 3H
based on 13c nmr find unknown compound and label each peak.
ppm 200 180 160 140 120 80 60 40 20 100 165 160 155 150 145 140 135 130 125 P
8. Sev eral students take a 1H NMR and 13C NMR spectra for an unknown compound They each propose something about the identity of the unknown. For each argument, determine whether the argument is: (10 pts) MS: No M+2 peak present, the MW is an odd number 13C NMR: 130, 125, 65, 30, 15, 10 H NMR: 5.8 (1H dd) 5.5 1.3(3H, d 1.1 (3, t) A scientific argument is valid if the data and conclusion are both true, and...
Unknown H415 100 50 1000 1S00 2000 3000 BRVENUMBERI 4000 Unknown H415 ЗН 1 H-N 2H, q 1H, d 5H, m 1H, d 0 1 2 3 6 7 8 10 11 ppm HSP-00-049 Unknown H415 q 140 120 100 200 180 160 ppm CDS-00-726 20 -40 60 80 Relative Intensity 09 Unknown H415 100 MS-NJ-0442 80 20 thmpt 25 50 75 100 125 150 175 m/z Date: Name: Section/Group: Instructor: Report Sheet: Laboratory 14 MS,IR, 13C NMR, and 'H...
I’m
supposed to label each peak with the correct letter but I’m
struggling to understand it. I’m not sure if I’m doing these
correctly. I don’t know how to do the 13C NMR.
Problem K: CHCIO IR: shows stretch at 1740 cm -ester MS: parent ions at 136 and 138; base peak at 101; abundant peaks at 91 and 93 'H NMR 3 H 2 H 2H 2 H PPM PC NMR 180 160 140 120 100 PPM 80 60...
The 1H-NMR and 13C-NMR spectra of an unknown compound (formula
C8H10) are shown below. Draw the structure of the unknown compound.
The total integration of the peaks at around 7 ppm is 4. The
integration of the peak at around 2 ppm is 6.
7 6 5 4 3 ppm TTTTTTTTTTTTTTTT 200 180 160 140 120 100 80 60 40 20 0 pom CH3 Create OscerSketch Answer 8 Incorrect: Answer has an incorrect structure.
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 5 ppm 1) Which compound gives the following spectra? For the 'H-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...
What are the unknown Aldehyde and unknown ketone. Label all
relevant / important peaks.
oo 48 A o תס ar PPM A سب 4 N 2 - o 200 180 160 140 120 100 80 60 40 20 0 PPM 13C: 196.6, 143.6, 135.2, 132.8, 128.6, 128.5, 127.9, 29.4 EI-MS: 260
Create OscerSkotch Answer 6 Th e 1H-NMR and 13C-NMR spectra of an unknown compound s (formula CoMzo) are shown below. Draw the structure of B. The total integration of the peaks at around 7 ppm is 4. The integration of the peak at around 2 ppm is 6 ppm 200 180 160 140 120 100 060 4020