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Home/ Questions/Diethyl ether has the following structure Which groups of protons are equivalent to each other? How...
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lyytutoriaExpert
Asked: April 13, 20222022-04-13T07:18:12+00:00 2022-04-13T07:18:12+00:00In: Chemistry

Diethyl ether has the following structure Which groups of protons are equivalent to each other? How…

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Diethyl%20ether%20has%20the%20following%20structure%20Which%20groups%20of%20protons%20are%20equivalent%20to%20each%20other?%20How...

Diethyl ether has the following structure

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a, Which groups of protons are equivalent to each other?
1. A=B, C=D
2. A=C, B=D
3. A=D, B=C
4. A=B=C=D
5. A≠B≠C≠D
b, How many signals (individual resonances, not counting splitting) are expected in the 1H NMR spectrum?
a. 1
b. 2
c. 4
d. 7
e. 10
f. 14
♦ Relevant knowledge

Ether is an organic compound with a high combustibility that is typically found in liquid form and is extremely volatile. Diethylether can be made by intermolecular dehydration involving alcohol that is ethyl alcohol is heated to an appropriate temperature.

diethylequivalentprotons
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    John Anderson
    2022-04-13T07:21:03+00:00Added an answer on April 13, 2022 at 7:21 am
    Concepts and Reason

    The number of protons equivalent to the compound must be identified, along with the signals that the compound gives in [katex]^1{\rm{H – NMR}}[/katex]

    The number of signals in NMR also depends on the type of protons in the compound.

    Fundamentals

    NMR is an acronym for nuclear magnetic resonance. This is a useful spectroscopic technique that can be used to determine the types of protons and number of protons within the compounds.

    Chemically equivalent protons are those that are found in the same chemical environment. They are also present within the same group of other atoms. Each chemically equivalent proton produces 1 signal or 1 peak at [katex]^1{\rm{H – NMR}}[/katex]

    Chemically non-equivalent protons are those that are found in a different chemical environment. They are the ones present between different groups of atoms. Every chemically non-equivalent proton generates a distinct signal in [katex]^1{\rm{H – NMR}}[/katex]

    Draw the structure of the compound, and then identify the carbons present in each environment. Identify the protons equivalent to each other as shown below.

    CH3
OI

    Protons with the same color as each other are equal.

    First identify the distinct protons, then calculate the number signal in [katex]^1{\rm{H – NMR}}[/katex].

    Because there are two sets of protons, the number signal received will be 2. Ans:

    The group of protons which are equivalent is shown below:

    JO
O
T
A
A=B, C=D
A=C, B=D
=D, B=C
A=B=C=D
A# B#C#D
O
O

    The number of signals received in [katex]^1{\rm{H – NMR}}[/katex] is therefore significant.

    Оооооо

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