Homework Answers
Hi you have given me a lot of work and within allotted time it is not possible to analyze each and every thing, hence i am gonna give you a table of frequencies which is used to differentiate the 12 compounds here.
|
Alcohol |
|||
|
O-H |
(stretch, H-bonded) |
3200-3600 |
strong, broad |
|
O-H |
(stretch, free) |
3500-3700 |
strong, sharp |
|
C-O |
(stretch) |
1050-1150 |
strong |
|
Alkane |
|||
|
C-H |
stretch |
2850-3000 |
strong |
|
-C-H |
bending |
1350-1480 |
variable |
|
Alkene |
|||
|
=C-H |
stretch |
3010-3100 |
medium |
|
=C-H |
bending |
675-1000 |
strong |
|
C=C |
stretch |
1620-1680 |
variable |
|
Aromatic |
|||
|
C-H |
stretch |
3000-3100 |
medium |
|
C=C |
stretch |
1400-1600 |
medium-weak, multiple bands |
|
Nitrile |
|||
|
CN |
stretch |
2210-2260 |
medium |
|
Aldehyde |
|||
|
C=O |
stretch |
1740-1720 |
strong |
|
=C-H |
stretch |
2820-2850 & 2720-2750 |
medium, two peaks |
|
Amide |
|||
|
C=O |
stretch |
1640-1690 |
strong |
|
N-H |
stretch |
3100-3500 |
unsubstituted have two bands |
|
N-H |
bending |
1550-1640 |
|
|
Ester |
|||
|
C=O |
stretch |
1735-1750 |
strong |
|
C-O |
stretch |
1000-1300 |
two bands or more |
|
Ketone |
|||
|
acyclic |
stretch |
1705-1725 |
strong |
|
cyclic |
stretch |
3-membered - 1850 |
strong |
|
a,b-unsaturated |
stretch |
1665-1685 |
strong |
|
aryl ketone |
stretch |
1680-1700 |
strong |
Hope this helped you!
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Match each of the following IR spectra to 1 of the 6 compounds given below. There are only 3 spectra, so only 3 compound...
Match each of the following IR spectra to 1 of the 6 compounds
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used for this problem.
IR Spectra:
Compounds (USE ONLY 3):
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use structures to fill in blanks in IR spectra
Match the twelve compounds that are listed below with corresponding Infrared spectra that are displayed on this page and the following. Write the number of your selection in the IR spectrum. сна OH NH2 2 son ОН OCH3 -C=N 7 8 CH3 -(CH2)2CH2OH -CEN 9 10 11 12 mmmm Exp. 10а - 125 - Exp. 10а We were unable to transcribe this image
IR spectroscopy 1. Match the following six compounds to the IR spectra shown below. Draw the structure in the box. On the spectra, mark all important peaks with arrows or circles, and label them with corresponding bonds. NH2 orte de Structure: IR Spectrum lould film) 1723 V 4000 2000 3000 1200 1600 V (cm ) Structure: IR Spectrum fiquld fam) 4000 2000 V (cm 16001200800 ) Exp - 119- Exp. 100 Structure: 3600-2500 IR Spectrum liguld fm) U 1715 4000...
Match each of the following IR spectra to 1 of the 6 compounds
given below. There are only 3 spectra, so only 3 compounds will be
used for this problem.
IR Spectra:
Compounds (USE ONLY 3):
1979 VENTER 1677 41393 7411605 B 1606 49 1597 59 1306 661073 SE 1295 52 com obalech OH HO
Match each of the compound with the appropriate IR spectrum. Assign the important peaks on the spectrum with corresponding group in the compound 6. OH HO Wavenumber Wavenumber iom Wavenumber inm (d) Wavenumber (om (c Wavenumber o Wavenumber (om) (e) aaumpats aouuus % OUR 7. MATCH a structure from the list below to the following IR spectra. Place the structure in the appropriate spectra and label the main peaks that justifies your assignments HO OH E 8. Rank the following...
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of the four compounds listed below which would produce the
spectra below?
Which molecule is consistent with both of these IR and TH NMR spectra? 100 6H 50 3H 1H 4000 3000 1000 500 2000 1500 WAVENUMBERS Na PPM onthlon OB. Ос. OD OH
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