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.
Solution:
The given spectrum corresponds to otho-xylene (1,2-dimethylbenzene). It contains two signals in 1H NMR and four signals in 13C NMR spectrum.
The 1H-NMR and 13C-NMR spectra of an unknown compound (formula C8H10) are shown below. Draw the structure of the unknown...
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
28. A compound with the molecular formula of C3H.ON shows 1H NMR and 13C NMR as below. Give the most plausible structure in the box. 2H, 3 peaks 2H, 3 peaks 1H, 1 peak PPM 180 160 140 120 100 80 60 40 20 PPM
The H-NMR spectrum of an unknown compound (formula CaHgO2) is shown below. Draw the structure of the unknown compound. Question 5 4 1 6 5 8 10 11 Ppm The 13C-NMR spectrum of an unknown compound (formula CgH180) is shown below. Its 1H-NMR spectrum only shows one singlet at 1.2 ppm. Draw the structure of this unknown compound. uestion 2 220 200 160 140 120 PPM 100 80 240 180 60 40 20 Create OscerSketch Answer 2 What would be...
On the attached image are 1H NMR, 13C NMR, and IR spectra of a compound with the formula C4H8O. 1H NMR signal at 1.2 is caused by 3 hydrogens, the sigbal at 2.1 is caused by 3 hydrogens, and the signal at 2.5 is caused by 2 hydrogens. Identify the compound. CH 1110 9 8 7 6?4 Problem 6. 'H NMR spectrum of compound HsO Problem 6. 13C NMR spectrum of compound C4HsO 200 180 160 140 120 100 80...
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...
Question 8 The NMR and C NMR spectra of an unknown compound formula Hial are shown below. Dww the structure of the unknown compound. The total integration of the peaks at around 7pm . The integration of the peak at around 2 pomis 160 2000 340 120 100 Enter Your Answer: A B C D Question 7 In the 'H-NMR spectrum of the ketone reactant, we would expect to see three signals. What would be the expected number of signals...
determine the structure of the compound and label the peaks on spectra left to right compound 3: C.H. 'H NMR integration, right to left: 1:6 11 10 9 ppm 140120 1000 left to right sound 3: CsH14. 'H NMR integration, right to left: 1:6 Compound 3: CH. CC 11 7 10 9 8 Cửa - Chº ppm RECH/ /R₂ CH2 200 180 160 140 120 80 60 40 20 0 100 pom
5-A compound (CH40) has the following 1H NMR, 13C NMR, and IR spectra. Propose a structure consistent with this data. Part marks are available so show your work! Clearly indicate your final proposed structure (10 Marks) C8H140 TOO -140 SI 30 3000 1000 2000 1000 Warenumbers (cm) 200 180 160 140 120 100 80 60 40 20 ppm ketone ble 1530 1510 1500 H 5.0 4.5 4.0 3.5 3.0 2.5 2.0 15 pm 4
Interpret the 1H NMR and 13C NMR spectra data provided as evidence of the structure of styrene. Styrene H-NMR Styrene C-NMR We were unable to transcribe this imageStyrene in CDC13 VI 135 130 125 120 ppm 200 190 180 170 160 50 140 130 120 110 100 90 80 70 60 50 4030 20 10 ppm Styrene H-NMR Styrene C-NMR Styrene in CDC13 VI 135 130 125 120 ppm 200 190 180 170 160 50 140 130 120 110 100...
Draw the structure of the compound identified by the following simulated 1H and 13C NMR spectra. The molecular formula of the compound is C10H12O. (Blue numbers next to the lines in the 1H NMR spectra indicate the integration values.)