assign each peak H-NMR spectrum of styrene oxide
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assign each peak H-NMR spectrum of styrene oxide
Spectral Data H NMR spectrum (400MHZ, CDCi) ciicici...
(a) From the spectral data ( H, C NMR, IR, MS) you were given, identify the...
(a) From the spectral data ( H, C NMR, IR, MS) you were given,
identify the structure of your product. Explain why you chose your
particular product based on the spectroscopic data.
(b) Fully assign the 1H NMR spectrum of your product (i.e.
determine which peaks in the 1H NMR correspond to which hydrogens
in the product). You will not receive full marks for determination
of the unknown unless you assign the 1H NMR spectrum
completely.
(c) Now work backwards...
Identify the peak in the 1H NMR spectrum corresponding to the CH3 group, explain what coupling...
Identify the peak in the 1H NMR spectrum corresponding to the
CH3 group, explain what coupling pattern it has and why it has that
pattern.
7.4741 7.3572 7.3393 -5.4109 4.2023 4.1906 -4.1725 4.1608 -3.5350 -3.5065 -3.4775 Spectrometer: 400 MHZ Solvent: CDCI T 4.4 4.3 4.2 4.1 4.0 3.9 3.8 3.7 3.6 3.5 3.4 3.3 <3.2368 CDCI, x = peak from minor byproduct do 1.00-1 F-602 3.1444 Feer to 7.5 7.0 6.5 6.0 5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0...
the following 1H NMR shows data from a sample of the reaction of styrene oxide and...
the following 1H NMR shows data from a sample of the
reaction of styrene oxide and HBr.
use the information from the data to indicate the extent to which
the reaction progressed by pointing out the presence or absence of
specific signals.
this is the styrene oxide data before reaction
ოოოოოოოოოო 22 2.79 2.82 12.81 2.80 2.80 mmmmmmm gal- BRUKER Current Data Parastra JUMB Deb-2015-CH25 2013 PZ - Memutation Parameters 11.34 PULPROG SOLVENT cocia FIORES 641025 0.195625 5.1110078 78.000 sec...
identify the peak in the 1H NMR spectrum corresponding to the CH3 group, explain what coupling...
identify the peak in the 1H NMR spectrum corresponding to the
CH3 group, explain what coupling pattern it has and why it has that
pattern.
7.4741 7.3572 7.3393 -5.4109 4.2023 4.1906 -4.1725 4.1608 -3.5350 -3.5065 -3.4775 Spectrometer: 400 MHZ Solvent: CDCI T 4.4 4.3 4.2 4.1 4.0 3.9 3.8 3.7 3.6 3.5 3.4 3.3 <3.2368 CDCI, x = peak from minor byproduct do 1.00-1 F-602 3.1444 Feer to 7.5 7.0 6.5 6.0 5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0...
9. Assign structures to compounds A through E on the basis of the spectral data given....
9. Assign structures to compounds A through E on the basis of the spectral data given. Clearly explain your reasons for making each assignment. d) Compound D: CH1002 NMR SPECTRUM TH NMR Spectrum (400 MHz, CDCI, solution) expansion 7.2 7.0 ppm TMS 10 9 8 7 6 5 4 3 2 1 shem 8 (ppm) IR SPECTRUM IR Spectrum (liquid film) 1760 4000 3000 1200 800 2000 v (cm 1600 ) Mass Spectrum and UV absorptions 108 Mass Spectrum UV...
The 1H NMR spectrum has peaks (marked with "x") for a minor byproduct - what might...
The 1H NMR spectrum has peaks (marked with "x") for a minor
byproduct - what might that be?
7.4741 7.3572 7.3393 -5.4109 4.2023 4.1906 -4.1725 4.1608 -3.5350 -3.5065 -3.4775 Spectrometer: 400 MHZ Solvent: CDCI T 4.4 4.3 4.2 4.1 4.0 3.9 3.8 3.7 3.6 3.5 3.4 3.3 <3.2368 CDCI, x = peak from minor byproduct do 1.00-1 F-602 3.1444 Feer to 7.5 7.0 6.5 6.0 5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 ppm 1.0 CHEM 08LB: 1H NMR...
To give you more practice with analyzing NMR spectra, match each of the following 'H-NMR spectra...
To give you more practice with analyzing NMR spectra, match each of the following 'H-NMR spectra to one of the five possible compounds (structures below). Assign the NMR peaks to their respective hydrogens. Possible compounds: CH2. (H3 diethyl malonate p-ethylanisole OH 3-methylbutanal 1-pentene 1-propanol 6.0 2.0 4.8 4.6 4.4 4.2 4.0 3.8 3.6 3.4 3.2 3.0 2.8 2.6 2.4 2.2 2.0 1.8 1.6 1.4 1.2 1.0 ppm a. 1.80 1.70 1.60 1.50 1.40 1.30 3.0 ( 2.0 | 2.0 2.32...
Assign each Color to Peak 430415 439 40 400 3,0 3.0 2.0 1.0 L0 17 14...
Assign each Color to Peak 430415 439 40 400 3,0 3.0 2.0 1.0 L0 17 14 TTTTT 4.0 3.8 3.6 3.4 3.2 3.0 2.8 26 24 22 20 1.8 1.6 12 14 10 3.0 2.0 H H Н 2.0 alllllilll 230 230 200 1 10 1.3 10 12 1.0 18 1.4 20 16 22 26 24 3.0 28 32 36 34 Br
In the proton NMR for benzil, there are clearly some impurity peaks below 8 ppm. Although...
In the proton NMR for benzil, there are clearly some impurity
peaks below 8 ppm. Although we cannot assign these for certain, is
it possible that these peaks come from unreacted benzoin? Why or
why not?
8.0 8.3 7.5 8.2 NMR nuclei observed: H Solvent: CDCl3 NMR field strength: 400MHz 7.0 6.5 6.0 5.5 5.0 4.5 4.0 3.5 3.0 2.5 (ppm) f1 8.1 8.0 7.9 7.8 7.7 7.6 7.5 7.4 7.3 f1 (ppm) 11 10 12 13 14 2.0 1.5...
5. The spectral data provided below are for a compound with a molecular weight of 1 94 g/mol. Outline your interpre...
5. The spectral data provided below are for a compound with a molecular weight of 1 94 g/mol. Outline your interpretation of the data in point form and from your points, propose a structure consistent with the spectral data provided IR Spectrum (quid fim) 1712 1277 1254 L.... 800 2000 1600 V (cm) 1200 4000 3000 C NMR Spectrum Resolves into two signals at higher feld solvent proton decoupled o 8(ppm) 160 120 80 40 200 H NMR Spectrum (200...
(a) From the spectral data ( H, C NMR, IR, MS) you were given,
identify the structure of your product. Explain why you chose your
particular product based on the spectroscopic data.
(b) Fully assign the 1H NMR spectrum of your product (i.e.
determine which peaks in the 1H NMR correspond to which hydrogens
in the product). You will not receive full marks for determination
of the unknown unless you assign the 1H NMR spectrum
completely.
(c) Now work backwards...
Identify the peak in the 1H NMR spectrum corresponding to the
CH3 group, explain what coupling pattern it has and why it has that
pattern.
7.4741 7.3572 7.3393 -5.4109 4.2023 4.1906 -4.1725 4.1608 -3.5350 -3.5065 -3.4775 Spectrometer: 400 MHZ Solvent: CDCI T 4.4 4.3 4.2 4.1 4.0 3.9 3.8 3.7 3.6 3.5 3.4 3.3 <3.2368 CDCI, x = peak from minor byproduct do 1.00-1 F-602 3.1444 Feer to 7.5 7.0 6.5 6.0 5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0...
the following 1H NMR shows data from a sample of the
reaction of styrene oxide and HBr.
use the information from the data to indicate the extent to which
the reaction progressed by pointing out the presence or absence of
specific signals.
this is the styrene oxide data before reaction
ოოოოოოოოოო 22 2.79 2.82 12.81 2.80 2.80 mmmmmmm gal- BRUKER Current Data Parastra JUMB Deb-2015-CH25 2013 PZ - Memutation Parameters 11.34 PULPROG SOLVENT cocia FIORES 641025 0.195625 5.1110078 78.000 sec...
identify the peak in the 1H NMR spectrum corresponding to the
CH3 group, explain what coupling pattern it has and why it has that
pattern.
7.4741 7.3572 7.3393 -5.4109 4.2023 4.1906 -4.1725 4.1608 -3.5350 -3.5065 -3.4775 Spectrometer: 400 MHZ Solvent: CDCI T 4.4 4.3 4.2 4.1 4.0 3.9 3.8 3.7 3.6 3.5 3.4 3.3 <3.2368 CDCI, x = peak from minor byproduct do 1.00-1 F-602 3.1444 Feer to 7.5 7.0 6.5 6.0 5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0...
9. Assign structures to compounds A through E on the basis of the spectral data given. Clearly explain your reasons for making each assignment. d) Compound D: CH1002 NMR SPECTRUM TH NMR Spectrum (400 MHz, CDCI, solution) expansion 7.2 7.0 ppm TMS 10 9 8 7 6 5 4 3 2 1 shem 8 (ppm) IR SPECTRUM IR Spectrum (liquid film) 1760 4000 3000 1200 800 2000 v (cm 1600 ) Mass Spectrum and UV absorptions 108 Mass Spectrum UV...
The 1H NMR spectrum has peaks (marked with "x") for a minor
byproduct - what might that be?
7.4741 7.3572 7.3393 -5.4109 4.2023 4.1906 -4.1725 4.1608 -3.5350 -3.5065 -3.4775 Spectrometer: 400 MHZ Solvent: CDCI T 4.4 4.3 4.2 4.1 4.0 3.9 3.8 3.7 3.6 3.5 3.4 3.3 <3.2368 CDCI, x = peak from minor byproduct do 1.00-1 F-602 3.1444 Feer to 7.5 7.0 6.5 6.0 5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 ppm 1.0 CHEM 08LB: 1H NMR...
To give you more practice with analyzing NMR spectra, match each of the following 'H-NMR spectra to one of the five possible compounds (structures below). Assign the NMR peaks to their respective hydrogens. Possible compounds: CH2. (H3 diethyl malonate p-ethylanisole OH 3-methylbutanal 1-pentene 1-propanol 6.0 2.0 4.8 4.6 4.4 4.2 4.0 3.8 3.6 3.4 3.2 3.0 2.8 2.6 2.4 2.2 2.0 1.8 1.6 1.4 1.2 1.0 ppm a. 1.80 1.70 1.60 1.50 1.40 1.30 3.0 ( 2.0 | 2.0 2.32...
Assign each Color to Peak 430415 439 40 400 3,0 3.0 2.0 1.0 L0 17 14 TTTTT 4.0 3.8 3.6 3.4 3.2 3.0 2.8 26 24 22 20 1.8 1.6 12 14 10 3.0 2.0 H H Н 2.0 alllllilll 230 230 200 1 10 1.3 10 12 1.0 18 1.4 20 16 22 26 24 3.0 28 32 36 34 Br
In the proton NMR for benzil, there are clearly some impurity
peaks below 8 ppm. Although we cannot assign these for certain, is
it possible that these peaks come from unreacted benzoin? Why or
why not?
8.0 8.3 7.5 8.2 NMR nuclei observed: H Solvent: CDCl3 NMR field strength: 400MHz 7.0 6.5 6.0 5.5 5.0 4.5 4.0 3.5 3.0 2.5 (ppm) f1 8.1 8.0 7.9 7.8 7.7 7.6 7.5 7.4 7.3 f1 (ppm) 11 10 12 13 14 2.0 1.5...
5. The spectral data provided below are for a compound with a molecular weight of 1 94 g/mol. Outline your interpretation of the data in point form and from your points, propose a structure consistent with the spectral data provided IR Spectrum (quid fim) 1712 1277 1254 L.... 800 2000 1600 V (cm) 1200 4000 3000 C NMR Spectrum Resolves into two signals at higher feld solvent proton decoupled o 8(ppm) 160 120 80 40 200 H NMR Spectrum (200...
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