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13C NMR: Cumulative Practice Solutions Library

Access 26 13C NMR: Cumulative Practice video and text solutions to help you complete your homework.

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13C NMR: Cumulative Practice

Q. How many signals would you expect each of the following molecules to have in its 1H and 13C spectra? 

Solved • Mar 18, 2020

13C NMR: Cumulative Practice

Q. How many unique 13C and 1H NMR signals would you expect to see for each compound?

Solved • Jun 8, 2018

13C NMR: Cumulative Practice

Q. How many distinct signals would appear in the 13C NMR spectrum for the following compound? 

Solved • May 30, 2018

13C NMR: Cumulative Practice

Q. Identify the potential spectrum of the following molecule from the given carbon-13 NMR resonances. How many 13C NMR resonances would you expect fro...

Solved • May 22, 2018

13C NMR: Cumulative Practice

Q. For each compound shown add the missing hydrogens where appropriate and then indicate:1. expected number of signals in the 1H NMR;2. expected numbe...

Solved • Jun 9, 2017

13C NMR: Cumulative Practice

Q. Predict the 13C NMR spectrum of the compound in the box under proton-decoupled conditions. Indicate in the spectrum where each carbon resonates. Ad...

Solved • Jun 8, 2017

13C NMR: Cumulative Practice

Q. Predict the 13C NMR spectrum of compound A under proton-coupled conditions. Indicate clearly the position and splitting pattern of each carbon.  

Solved • Jun 8, 2017

13C NMR: Cumulative Practice

Q. For the following compound how many different signals would you see in the carbon NMR? (Assume that you can see them all.) A) 4 B) 5 C) 6 D) 7 ...

Solved • Jun 6, 2017

13C NMR: Cumulative Practice

Q. Which compound below would give rise to 5 signals in the proton NMR spectrum and 7 signals in the carbon NMR spectrum? (Assume you can separate and...

Solved • Jun 6, 2017

13C NMR: Cumulative Practice

Q. Which carbon of (a)-(d) of hex-3-en-2-one has the smallest (most upfield) chemical shift in the NMR spectrum? a. C-1 b. C-2 c. C-4 d. C-6

Solved • May 9, 2017

13C NMR: Cumulative Practice

Q. For the 13C NMR spectrum illustrated below, label each of the indicated peaks with the appropriate functional group.

Solved • Feb 6, 2017

13C NMR: Cumulative Practice

Q. The 13C NMR spectra for the following molecule is provided. Propose which fragments are elucidated by the spectra and use arrows to match those fra...

Solved • Jan 31, 2017

13C NMR: Cumulative Practice

Q. What is the correct assignment of the number of signals in the  13C NMR spectra of the following compounds? a. I=2 sig., II=4 sig., III=3 sig., IV...

Solved • Dec 20, 2016

13C NMR: Cumulative Practice

Q. How many signals would you expect to find in the 13C NMR spectrum of the following compounds? a. 8  b. 6  c. 5  d. 4  e. 7

Solved • Dec 20, 2016

13C NMR: Cumulative Practice

Q. Which of the following compounds is consistent with the 13C NMR spectrum shown below? a. I  b. II  c. III  d. IV  e. none of these

Solved • Dec 20, 2016

13C NMR: Cumulative Practice

Q. Shown below are the 1H NMR and 13C NMR (proton decoupled) spectra of four of the following five compounds:

Solved • Dec 14, 2016

13C NMR: Cumulative Practice

Q. Circle the molecule which represents the following 1H-NMR spectrum.

Solved • Dec 13, 2016

13C NMR: Cumulative Practice

Q. You might find it useful to know that RO- groups can serve as a leaving group. The NMR spectrum is of the predominant product. Using your growing i...

Solved • Dec 13, 2016

13C NMR: Cumulative Practice

Q. If you did not know the regioselectivity leading to the major product in the Birch reduction of toluene, but you did know that a 1,4-cyclohexadiene...

Solved • Dec 6, 2016

13C NMR: Cumulative Practice

Q. The molecular formula, IR & NMR are provided for the unknown compound. Provide the structural information from the IR & NMR and propose a s...

Solved • Sep 27, 2016

13C NMR: Cumulative Practice

Q. Which structure for a molecule with the molecular formula C 11H14O2 is in the best agreement with this 13C NMR spectrum?

Solved • May 8, 2016

13C NMR: Cumulative Practice

Q. Which structure is consistent with this  13C NMR spectrum?

Solved • May 8, 2016

13C NMR: Cumulative Practice

Q. Which structure is in agreement with these 1H NMR and 13C NMR spectra?

Solved • May 8, 2016

13C NMR: Cumulative Practice

Q. Which structure is most consistent with this  13C NMR spectrum?

Solved • May 8, 2016

13C NMR: Cumulative Practice

Q. The following six sets of  1H (left side) and  13C NMR (right side) spectra were obtained for different isomers of C3H6O2. Beneath each structure a...

Solved • May 3, 2016

13C NMR: Cumulative Practice

Q. How many signals would be there be in proton-decoupled  13C NMR spectra for the compound below?

Solved • May 3, 2016