Homework Answers
IR analysis of compound A
The band at around 1600 cm-1 is due to C=C stretching
The band at around 3050 cm-1 is due to alkene CH stretching
Therefore the compound is alkene
IR analysis of compound B
The broadband at 3400 cm-1 is due to hydroxy group
The band at around 2880 - 2960 is due to aliphatic CH stretching
Based on above analysis the stricture of the compound is aliphatic alcohol
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Determine the functional group present in the structure that leads to each of the following IR...
1) Identify the functional group (alkane, alkene, ketone, aldehyde, aldehyde, etc) for the compounds providing the...
1) Identify the functional group (alkane, alkene, ketone, aldehyde, aldehyde, etc) for the compounds providing the IR spectra: % Transmittance 4000 3500 3000 1500 1000 500 2500 2000 Wavenumber(cm) % Transmittance 4000 3500 3000 1500 1000 500 2500 2000 Wavenumber(cm) % Transmittance 1000 3500 3000 1500 1000 500 2500 2000 Wavenumber (cm)
Determine the structure and draw it here, then label the unique protons on the structure and...
Determine the structure and draw it here, then label the unique
protons on the structure and use those to label each signal in NMR
spectra. For the next series of spectra, you will be provided the
NMR and the IR for several isomers of
C9H12O.
UNKNOWN A:
UNKNOWN B:
UNKNOWN C:
. Wnish Ath F unK A CH120 LOD TRANSMITTANCE1% 4000 3000 2000 1500 1000 500 KAVE NUMRFRI Wish Th F unkB CH120 100 TRANSMETTANCE1% o ooooo 000 3000 2000...
An unknown molecule yields the following IR spectrum. What functional group is definitely NOT present in...
An unknown molecule yields the following IR spectrum. What functional group is definitely NOT present in the unknown molecule? 6. 100 50 4000 3000 2000 1000 Wavenumbers (cm-1) A. Carboxylic acid B. Alcohol C. Alkene D. Alkane E. All of the above functional groups can be present in this molecule %Transmittance
Look at the given IR spectra for compound W. Determine what kinds of bonds/functional group are...
Look at the given IR spectra for compound W. Determine what
kinds of bonds/functional group are present and select
present/absent.
Alcohol / Secondary Amine (O-H / N-H) present or absent
Carboxylic Acid (O-H) present or absen
Primary Amine (-NH2) present", "absent
Alkyne (C-H) present", "absent
Alkene (=C-H) present", "absent"
Alkane (C-H) present", "absent"
Aldehyde (C-H) present", "absent"
Triple bond (CC or CN) present", "absent"
Carbonyl (C=O) present", "absent"
Alkene (C=C) present", "absent"
Alkane (C-C) present or...
what functional group does this ir present？ %Transmittance -10 4000 3500 3000 3009 2969 2937 2840 2738 2500 Wavenum...
what functional group does this ir present？
%Transmittance -10 4000 3500 3000 3009 2969 2937 2840 2738 2500 Wavenumbers (cm-1) 2000 1679 1575 1594 1500 1509 1458 1442 1425 1393 1314 1301 1213 1254 1181 1155 1108 1021 1000 766 758 642 607 500
Organic Chemistry - Using the following IR anaylsis identify the major peaks and possible functio...
Organic Chemistry - Using the following IR anaylsis identify the
major peaks and possible functional group identity. Using the two
NMR spectra, discuss the integration of peaks, chemical shifts, and
splitting. Using the mass spectra, identify molecular weight and
important fragments to confirm the structure. Draw the fragments
that correspond to each peak in the mass spectra. Draw the
structure of the unknown that corresponds to all available data.
additional information: Unknown ‘J’ is a alkane.
H-NMR multiplet, 1OH triplet,...
for each spectra shown calculate the degrees of unsaturation state the functional group that are indicated...
for each spectra shown calculate the degrees of unsaturation
state the functional group that are indicated by thr spectra and
their ir peaks and propose a structure. please complete all as soon
as possible. thank you
For each of the spectra shown, (a) Calculate the degree of unsaturation (b) state the functional groups that are indicated by the spectra and indicate which IR peak(s) match(es) each, and (c) propose a structure CsH100 STT 2878 - 1170 - SACT 2984 ΘΤΣΙ...
Identify this compound (label all major functional groups on IR spectra). SAMPLE 100- % TRANSMITTANCE 4000...
Identify this compound (label all major
functional groups on IR spectra).
SAMPLE 100- % TRANSMITTANCE 4000 1000 3500 3000 2000 1500 2500 WAVENUMBERS 600.1
Identify the peaks that identify the functional groups in the IR spectrum Unknown 4 C2H60 TRANSMITTANCE...
Identify the peaks that identify the functional groups
in the IR spectrum
Unknown 4 C2H60 TRANSMITTANCE 1001- 0 900- 0 800- 0.700- 0.600- 0.500- 0.400- 0.300- 0200- 0.100- 0.000- 4000 IR Unknown 3500 3000 2500 2000 1000 1500 Load IR spectrum Load proton NMR Show structure Spectra are displayed using JSpecView Website maintained by Jennifer Muzyka Contact me at jennifer muzyka@centre edu. Unknown 5 C3H5NO TRANSMITTANCE 1.001 - 0.900- 0800- 0.700- 0.600- 0.500- 0.400- 0.300- 0 200- 0.100- 0 000...
IR spectra of SST polymorphs question: Analyze the IR spectra and list the functional groups present....
IR spectra of SST polymorphs question:
Analyze the IR spectra and list the functional groups
present. Also note if any contaminates are present in the
spectra.
Analyst Date PerkinElmer Spectrum Expru Versin 10001 1/28/2019 1002 AM Monday, January 28,2019 1002 AM 89- 80- 70 3333 35cm1 1402 39m 1 1376 94cm-1 40 Exp 5 Part 5: Dominigue 30 101 462.70cm-1 84cm-1 2853.91cm-1 37om-1 3000 2500 2000 1500 1000 450 4000 3500 cm-1 EMPTY-CELL 746 EMPTY-CELL
1) Identify the functional group (alkane, alkene, ketone, aldehyde, aldehyde, etc) for the compounds providing the IR spectra: % Transmittance 4000 3500 3000 1500 1000 500 2500 2000 Wavenumber(cm) % Transmittance 4000 3500 3000 1500 1000 500 2500 2000 Wavenumber(cm) % Transmittance 1000 3500 3000 1500 1000 500 2500 2000 Wavenumber (cm)
Determine the structure and draw it here, then label the unique
protons on the structure and use those to label each signal in NMR
spectra. For the next series of spectra, you will be provided the
NMR and the IR for several isomers of
C9H12O.
UNKNOWN A:
UNKNOWN B:
UNKNOWN C:
. Wnish Ath F unK A CH120 LOD TRANSMITTANCE1% 4000 3000 2000 1500 1000 500 KAVE NUMRFRI Wish Th F unkB CH120 100 TRANSMETTANCE1% o ooooo 000 3000 2000...
An unknown molecule yields the following IR spectrum. What functional group is definitely NOT present in the unknown molecule? 6. 100 50 4000 3000 2000 1000 Wavenumbers (cm-1) A. Carboxylic acid B. Alcohol C. Alkene D. Alkane E. All of the above functional groups can be present in this molecule %Transmittance
Look at the given IR spectra for compound W. Determine what
kinds of bonds/functional group are present and select
present/absent.
Alcohol / Secondary Amine (O-H / N-H) present or absent
Carboxylic Acid (O-H) present or absen
Primary Amine (-NH2) present", "absent
Alkyne (C-H) present", "absent
Alkene (=C-H) present", "absent"
Alkane (C-H) present", "absent"
Aldehyde (C-H) present", "absent"
Triple bond (CC or CN) present", "absent"
Carbonyl (C=O) present", "absent"
Alkene (C=C) present", "absent"
Alkane (C-C) present or...
what functional group does this ir present？
%Transmittance -10 4000 3500 3000 3009 2969 2937 2840 2738 2500 Wavenumbers (cm-1) 2000 1679 1575 1594 1500 1509 1458 1442 1425 1393 1314 1301 1213 1254 1181 1155 1108 1021 1000 766 758 642 607 500
Organic Chemistry - Using the following IR anaylsis identify the
major peaks and possible functional group identity. Using the two
NMR spectra, discuss the integration of peaks, chemical shifts, and
splitting. Using the mass spectra, identify molecular weight and
important fragments to confirm the structure. Draw the fragments
that correspond to each peak in the mass spectra. Draw the
structure of the unknown that corresponds to all available data.
additional information: Unknown ‘J’ is a alkane.
H-NMR multiplet, 1OH triplet,...
for each spectra shown calculate the degrees of unsaturation
state the functional group that are indicated by thr spectra and
their ir peaks and propose a structure. please complete all as soon
as possible. thank you
For each of the spectra shown, (a) Calculate the degree of unsaturation (b) state the functional groups that are indicated by the spectra and indicate which IR peak(s) match(es) each, and (c) propose a structure CsH100 STT 2878 - 1170 - SACT 2984 ΘΤΣΙ...
Identify this compound (label all major
functional groups on IR spectra).
SAMPLE 100- % TRANSMITTANCE 4000 1000 3500 3000 2000 1500 2500 WAVENUMBERS 600.1
Identify the peaks that identify the functional groups
in the IR spectrum
Unknown 4 C2H60 TRANSMITTANCE 1001- 0 900- 0 800- 0.700- 0.600- 0.500- 0.400- 0.300- 0200- 0.100- 0.000- 4000 IR Unknown 3500 3000 2500 2000 1000 1500 Load IR spectrum Load proton NMR Show structure Spectra are displayed using JSpecView Website maintained by Jennifer Muzyka Contact me at jennifer muzyka@centre edu. Unknown 5 C3H5NO TRANSMITTANCE 1.001 - 0.900- 0800- 0.700- 0.600- 0.500- 0.400- 0.300- 0 200- 0.100- 0 000...
IR spectra of SST polymorphs question:
Analyze the IR spectra and list the functional groups
present. Also note if any contaminates are present in the
spectra.
Analyst Date PerkinElmer Spectrum Expru Versin 10001 1/28/2019 1002 AM Monday, January 28,2019 1002 AM 89- 80- 70 3333 35cm1 1402 39m 1 1376 94cm-1 40 Exp 5 Part 5: Dominigue 30 101 462.70cm-1 84cm-1 2853.91cm-1 37om-1 3000 2500 2000 1500 1000 450 4000 3500 cm-1 EMPTY-CELL 746 EMPTY-CELL
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