Homework Answers
The problem is based on the concept of NMR spectroscopy of proton.
The structures of molecules can be determined by using proton NMR spectroscopy. Different molecular environment of protons is responsible for different values in NMR.
The number of NMR signal in a compound is equal to number of chemically nonequivalent protons present in that compound.
The splitting of NMR signals take place according to N+1 rule. If there are N protons present in neighboring atom then number of peaks is equal to N+1.
The structure of methyl propionate is as follow.
The number of proton adjacent to C is zero. So, number of peak for C is one. Thus, the proton signal splits into singlet.
The number of protons adjacent to A are two. So, number of peaks for A are three. Thus, the proton signal splits into triplet.
The number of protons adjacent to B are three. So, number of peaks for B are four. Thus, the proton signal splits into quartet.
By using information from step 1, step 2 and step 3 the NMR spectra for methyl propionate is as follow.
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Construct a simulated 1H NMR spectrum for methyl propanoate by dragging and dropping the appropriate...
Construct a simulated 1H NMR spectrum for methyl propanoate by dragging and dropping the appropriate splitting...
Construct a simulated 1H NMR spectrum for methyl propanoate by
dragging and dropping the appropriate splitting patterns into the
boxes on the chemical shift baseline, and by dragging integration
values into the small box above each signal. Items may be used more
than once. Peak heights do not represent integration.
Construct a simulated 1H NMR spectrum for methyl propanoate by dragging and dropping the appropriate splitting patterns into the boxes on the chemical shift baseline, and by dragging integration values...
Construct a simulated 1H NMR spectrum for chloroethane by dragging and dropping the appropriate splitting patterns...
Construct a simulated 1H NMR spectrum for chloroethane by dragging and dropping the appropriate splitting patterns into the boxes on the chemical shift baseline, and by dragging integration values into the small box above each signal. Items may be used more than once. Peak heights do not represent integration.
Construct a simulated 1H NMR spectrum for 2-chloropropane by dragging and dropping the appropriate splitting patterns...
Construct a simulated 1H NMR spectrum for 2-chloropropane by dragging and dropping the appropriate splitting patterns into the boxes on the chemical shift baseline, and by dragging integration values into the small box above each signal. Items may be used more than once. Peak heights do not represent integration. It has signals at 1.5 and about 3.8 ppm
e by dragging and dropping the appropriate integration values into the Construct a simulated H NMR...
e by dragging and dropping the appropriate integration values into the Construct a simulated H NMR spectrum for splitting pattems into the boxes on the chemical shift baseline, and by small box above each signal. Items may be used more than once. Peak heights do not represent integration. 0 2H 3H
Construct a simulated 1H NMR spectrum for the given structural formula.
Construct a simulated 1H NMR spectrum for the given structural formula. Drag the appropriate splitting patterns to the approximate chemical shift positions; placethe integration values in the small bins above the associated chemical shift. Splitting patterns and integrations may be used more than once, or not at all, asneeded. Note that peak heights are arbitrary and do not indicate proton integrations.
Construct a simulated 1H NMR spectrum for the given structural formula. Drag the appropriate splitting patterns...
Construct a simulated 1H NMR spectrum for the given structural
formula. Drag the appropriate splitting patterns to the approximate
chemical shift positions; place the integration values in the small
bins above the associated chemical shift. Splitting patterns and
integrations may be used more than once, or not at all, as needed.
Likewise, some bins might remain blank. Note that peak heights are
arbitrary and do not indicate proton integrations.
Construct a simulated 1H NMR spectrum, including proton integrations, for CH3CHCl2. Drag the appropriate splitting patterns...
Construct a simulated 1H NMR spectrum, including proton
integrations, for CH3CHCl2. Drag the appropriate splitting patterns
to the approximate chemical shift positions; place the integration
values in the small bins above the associated chemical shift.
Splitting patterns and integrations may be used more than once, or
not at all, as needed. Likewise, some bins might remain blank. Note
that peak heights are arbitrary and do not indicate proton
integrations.
Construct a simulated 1H NMR spectrum, including proton integrations, for CH3CHCl2. Drag the appropriate splitting patterns...
Construct a simulated 1H NMR spectrum, including proton integrations, for CH3CHCl2. Drag the appropriate splitting patterns to the approximate chemical shift positions; place the integration values in the small bins above the associated chemical shift. Splitting patterns and integrations may be used more than once, or not at all, as needed. Likewise, some bins might remain blank. Note that peak heights are arbitrary and do not indicate proton integrations.
Construct a simulated 1H NMR spectrum, including proton integrations, for CH3OC(CH2OCH3)3 (see Hint). Drag the appropriate...
Construct a simulated 1H NMR spectrum, including proton
integrations, for CH3OC(CH2OCH3)3 (see Hint). Drag the appropriate
splitting patterns to the approximate chemical shift positions;
place the integration values in the small bins above the associated
chemical shift. Splitting patterns and integrations may be used
more than once, or not at all, as needed. Likewise, some bins might
remain blank. Note that peak heights are arbitrary and do not
indicate proton integrations.
Construct a simulated 1H NMR spectrum, including proton integrations, for CH3OC(CH2OCH3)3) (see Hint). Drag the appropriate...
Construct a simulated 1H NMR spectrum, including proton integrations, for CH3OC(CH2OCH3)3) (see Hint). Drag the appropriate splitting patterns to the approximate chemical shift positions; place the integration values in the small bins above the associated chemical shift. Splitting patterns and integrations may be used more than once, or not at all, as needed. Likewise, some bins might remain blank. Note that peak heights are arbitrary and do not indicate proton integrations.
Construct a simulated 1H NMR spectrum for methyl propanoate by
dragging and dropping the appropriate splitting patterns into the
boxes on the chemical shift baseline, and by dragging integration
values into the small box above each signal. Items may be used more
than once. Peak heights do not represent integration.
Construct a simulated 1H NMR spectrum for methyl propanoate by dragging and dropping the appropriate splitting patterns into the boxes on the chemical shift baseline, and by dragging integration values...
Construct a simulated 1H NMR spectrum for chloroethane by dragging and dropping the appropriate splitting patterns into the boxes on the chemical shift baseline, and by dragging integration values into the small box above each signal. Items may be used more than once. Peak heights do not represent integration.
e by dragging and dropping the appropriate integration values into the Construct a simulated H NMR spectrum for splitting pattems into the boxes on the chemical shift baseline, and by small box above each signal. Items may be used more than once. Peak heights do not represent integration. 0 2H 3H
Construct a simulated 1H NMR spectrum for the given structural
formula. Drag the appropriate splitting patterns to the approximate
chemical shift positions; place the integration values in the small
bins above the associated chemical shift. Splitting patterns and
integrations may be used more than once, or not at all, as needed.
Likewise, some bins might remain blank. Note that peak heights are
arbitrary and do not indicate proton integrations.
Construct a simulated 1H NMR spectrum, including proton
integrations, for CH3CHCl2. Drag the appropriate splitting patterns
to the approximate chemical shift positions; place the integration
values in the small bins above the associated chemical shift.
Splitting patterns and integrations may be used more than once, or
not at all, as needed. Likewise, some bins might remain blank. Note
that peak heights are arbitrary and do not indicate proton
integrations.
Construct a simulated 1H NMR spectrum, including proton integrations, for CH3CHCl2. Drag the appropriate splitting patterns to the approximate chemical shift positions; place the integration values in the small bins above the associated chemical shift. Splitting patterns and integrations may be used more than once, or not at all, as needed. Likewise, some bins might remain blank. Note that peak heights are arbitrary and do not indicate proton integrations.
Construct a simulated 1H NMR spectrum, including proton
integrations, for CH3OC(CH2OCH3)3 (see Hint). Drag the appropriate
splitting patterns to the approximate chemical shift positions;
place the integration values in the small bins above the associated
chemical shift. Splitting patterns and integrations may be used
more than once, or not at all, as needed. Likewise, some bins might
remain blank. Note that peak heights are arbitrary and do not
indicate proton integrations.
Construct a simulated 1H NMR spectrum, including proton integrations, for CH3OC(CH2OCH3)3) (see Hint). Drag the appropriate splitting patterns to the approximate chemical shift positions; place the integration values in the small bins above the associated chemical shift. Splitting patterns and integrations may be used more than once, or not at all, as needed. Likewise, some bins might remain blank. Note that peak heights are arbitrary and do not indicate proton integrations.
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