I am currently trying to characterize the different peaks in my molecule, which is N-(3-bromo)phenyl benzamide, but am having a lot of trouble understanding how a meta-substituent would affect H NMR shift.
I am also confused as to how I got 7 peaks (I believe the ones in the 2.5-3.3 range are impurities of water and DMSO), when there would be 8 possible signals.
I am looking for someone to help me understand how a meta-substituent would affect H NMR shift, and help me to characterize this compound.
Here's what I have so far, please correct me if I'm wrong:
7.599: multiplet, 1H, H
7.841: multiplet, 1H, C
8.017: multiplet, 2H, F
8.177: doublet, 1H, D
10.571: singlet, 1H, E
Homework Answers
7.278: multiplet, 2 H, A, B
7.599: multiplet, 3H, G, C
7.841: multiplet, 1H, H
8.017: multiplet, 2H, F
8.177: singlet, 1H, D
10.571: broad singlet, 1H, E
Fill out the chart. Help me understand what is going on here. 1H NMR Structure: Peak...
Fill out the chart. Help me understand what is going on
here.
1H NMR Structure: Peak Chemical Shift (8) Multiplicity H Peak Chemical Shift (8) Multiplicity H 7 Ha OH 2 8 3 9 Name: 4 10 1,4 butanedoil 5 11 6 12 'H NMR Peak Chemical Shift (8) Multiplicity H Peak Chemical Shift (8) Multiplicity H 7 Structure: 2 8 WOH 3 9 4 10 Name: 5 11 6 12 Specify the multiplicity as a singlet (s), doublet (d),...
Could anybody help me answer the selected questions? 8.8 Identify the compounds of the given molecular...
Could anybody help me answer the selected questions?
8.8 Identify the compounds of the given molecular formulas that show a. One 'H NMR signal: CHO CH C.H.Br, b. Two 'H NMR signals: CH.CL CHO CHO, CHOCI 8.9 8.10 How many 'H NMR signals will each of the compounds below show? a. (CH, CHỊCH, d. CH.COCH,CH.COCH, b. CH,COCOOCH, e. CH.COCH.CH.COOCH, c. CH,COCH,COCH, L. CHCOCH CH(CI)COCH, Suggest structures consistent with the following 'H NMR data: а. Сно CHCI triplet (1.0 ppm, 3H)...
for the following 2 compounds, please calculate, and show the calculations for, the degree of unsaturation, assign the IR spectrum peaks, assign the 13C NMR peaks, assign the 1H NMR peaks, and draw th...
for the following 2 compounds, please calculate, and
show the calculations for, the degree of unsaturation, assign the
IR spectrum peaks, assign the 13C NMR peaks, assign the 1H NMR
peaks, and draw the structure for the unknown compound.
CHIM 245 Spectroscopy Problem Set #2 In this problem set there are two unknown compounds. You are provided with the formula, IR spectrum, "C NMR spectrum, and 'H NMR spectrum for each compound. Each unknown is worth 10 points, with an...
Question 29 1. CH3CH2MgBr H Cr04 Which of the following is a synthesis of 3-heptanone? CA....
Question 29 1. CH3CH2MgBr H Cr04 Which of the following is a synthesis of 3-heptanone? CA. 1. DMSO, (COCI)2 CH3CH2CH2CH2CH2OH 2. EtzN B. CH(CH3)2CH Li H30+ CH3CH2CN ether 2. H30* с с. PBr3 NaCN CH3CH2MgBr H30+ CH3CH2CH2CH2OH ether ether D. 1.03 2. Zn/H E. All of these choices are syntheses of 3-heptanone. Question 30 A compound with the molecular formula C 10H 13Cl gave the following 1H NMR spectrum: singlet, 8 1.6 singlet, 3.1 multiplet, 5 7.2 (5H) The most...
What is the splitting and integration for the protons indicated below? triplet, 2H multiplet (5), 1H...
What is the splitting and integration for the protons indicated below? triplet, 2H multiplet (5), 1H singlet, 1H doublet, 1H triplet, 1H NH2 OOO The integration on a 'H NMR spectra containing three peaks is as follows for a molecule with the molecular formula C6H12O; A = 18, B = 12, and C = 6.0. How many hydrogens does peak B represent? OB = 12 B = 2 B = 6 B = 6.0 B=4 Draw the structure for 2,4Z-2-bromo-4-ethyl-2,4-hexandiene....
Hi could you help me with this problem please? The following spectroscopic data were obtained for...
Hi could you help me with this problem please? The following spectroscopic data were obtained for an organic compound: i. MS (relative abundance in parentheses): M+ = 86 ; signals at 29 (92) and 41 (100) among others ii. IR (cm-1): 3100 (weak sharp), 2970 (medium sharp), 2850 (medium), 1650 (weak sharp), 1100 (strong sharp) iii. H1 NMR : Signal A at 4 ppm (3H, triplet), Signal B at 3.53 ppm (2H quartet), Signal C at 4.01...
a.) Your TA will give you a 1H NMR spectrum of the 3 nitro-aniline product. Using...
a.) Your TA will give you a 1H NMR spectrum of the 3
nitro-aniline product. Using your NMR knowledge and the special NMR
section in the lab book, as sign the 4 peaks in the spectrum to
each of the protons in the product.
b.) Explain your assignment, specifically how you differentiated
between Ha and Hb.
Please answer both parts thanks!
Experiment 5 Product 400 MHz DMSO-ds -5.81 5.90 5.88 5.86 5.84 5.82 5.80 5.78 5.76 5.74 5.72 5.70 0...
I have done part a) so you don't have to draw them. Please answer b and...
I have done part a) so you don't have to draw them.
Please answer b and C. Thanks
Problem #1. We have learned to recognize the multiplicity patterns: singlet (1 line), doublet (2 lines), triplet (3 lines), quartet (4), pentet (5) (or quintet), hextet (6), etc. When looking at actual 'H NMR spectra, it is important to realize that the outer lines of multiplets of peaks with N > 5 are often not visible. In other words, these lines are...
please answer every part of question 6!! and i will make sure to thumbs up the answer! 6) a) How many aromatic 'H NM...
please answer every part of question 6!! and i will make sure
to thumbs up the answer!
6) a) How many aromatic 'H NMR signals would be expected for 4-bromo-3-methylanisole? (0.5 pts.) b) What would the expected 'H NMR chemical shift be for the protons of the OCH; group?_ _(0.5 pts.) c) Proceeding in a clockwise direction, label each unique hydrogen atom on the aromatic ring using the labels H. through H., if needed. If the hydrogens are chemically shift...
Problem 16.33 Show how you would convert benzaldehyde into each of the compounds using the reagents...
Problem 16.33 Show how you would convert benzaldehyde into each of the compounds using the reagents (A - G) in the table below where necessary. H20+ PBrz NaBH4 A: (1) AICI: (2) H307 SOCI2 Ag(NH3)2 NHz/H20 B: C: D: LiAIH4 E: F: G: X Incorrect. (c) C6H5CHENNHC6H5 + CH stereoisomer (E)-1-phenyl-2-(phenylmethylidene)hydrazine A: PPhz Edit H3C X Incorrect. (d) CGHSCH=CHCH=CH2 H B (a Wittig reagent) B: ? Edit Problem 16.49 Compounds W and X are isomers; they have the molecular formula...
Fill out the chart. Help me understand what is going on
here.
1H NMR Structure: Peak Chemical Shift (8) Multiplicity H Peak Chemical Shift (8) Multiplicity H 7 Ha OH 2 8 3 9 Name: 4 10 1,4 butanedoil 5 11 6 12 'H NMR Peak Chemical Shift (8) Multiplicity H Peak Chemical Shift (8) Multiplicity H 7 Structure: 2 8 WOH 3 9 4 10 Name: 5 11 6 12 Specify the multiplicity as a singlet (s), doublet (d),...
Could anybody help me answer the selected questions?
8.8 Identify the compounds of the given molecular formulas that show a. One 'H NMR signal: CHO CH C.H.Br, b. Two 'H NMR signals: CH.CL CHO CHO, CHOCI 8.9 8.10 How many 'H NMR signals will each of the compounds below show? a. (CH, CHỊCH, d. CH.COCH,CH.COCH, b. CH,COCOOCH, e. CH.COCH.CH.COOCH, c. CH,COCH,COCH, L. CHCOCH CH(CI)COCH, Suggest structures consistent with the following 'H NMR data: а. Сно CHCI triplet (1.0 ppm, 3H)...
for the following 2 compounds, please calculate, and
show the calculations for, the degree of unsaturation, assign the
IR spectrum peaks, assign the 13C NMR peaks, assign the 1H NMR
peaks, and draw the structure for the unknown compound.
CHIM 245 Spectroscopy Problem Set #2 In this problem set there are two unknown compounds. You are provided with the formula, IR spectrum, "C NMR spectrum, and 'H NMR spectrum for each compound. Each unknown is worth 10 points, with an...
Question 29 1. CH3CH2MgBr H Cr04 Which of the following is a synthesis of 3-heptanone? CA. 1. DMSO, (COCI)2 CH3CH2CH2CH2CH2OH 2. EtzN B. CH(CH3)2CH Li H30+ CH3CH2CN ether 2. H30* с с. PBr3 NaCN CH3CH2MgBr H30+ CH3CH2CH2CH2OH ether ether D. 1.03 2. Zn/H E. All of these choices are syntheses of 3-heptanone. Question 30 A compound with the molecular formula C 10H 13Cl gave the following 1H NMR spectrum: singlet, 8 1.6 singlet, 3.1 multiplet, 5 7.2 (5H) The most...
What is the splitting and integration for the protons indicated below? triplet, 2H multiplet (5), 1H singlet, 1H doublet, 1H triplet, 1H NH2 OOO The integration on a 'H NMR spectra containing three peaks is as follows for a molecule with the molecular formula C6H12O; A = 18, B = 12, and C = 6.0. How many hydrogens does peak B represent? OB = 12 B = 2 B = 6 B = 6.0 B=4 Draw the structure for 2,4Z-2-bromo-4-ethyl-2,4-hexandiene....
a.) Your TA will give you a 1H NMR spectrum of the 3
nitro-aniline product. Using your NMR knowledge and the special NMR
section in the lab book, as sign the 4 peaks in the spectrum to
each of the protons in the product.
b.) Explain your assignment, specifically how you differentiated
between Ha and Hb.
Please answer both parts thanks!
Experiment 5 Product 400 MHz DMSO-ds -5.81 5.90 5.88 5.86 5.84 5.82 5.80 5.78 5.76 5.74 5.72 5.70 0...
I have done part a) so you don't have to draw them.
Please answer b and C. Thanks
Problem #1. We have learned to recognize the multiplicity patterns: singlet (1 line), doublet (2 lines), triplet (3 lines), quartet (4), pentet (5) (or quintet), hextet (6), etc. When looking at actual 'H NMR spectra, it is important to realize that the outer lines of multiplets of peaks with N > 5 are often not visible. In other words, these lines are...
please answer every part of question 6!! and i will make sure
to thumbs up the answer!
6) a) How many aromatic 'H NMR signals would be expected for 4-bromo-3-methylanisole? (0.5 pts.) b) What would the expected 'H NMR chemical shift be for the protons of the OCH; group?_ _(0.5 pts.) c) Proceeding in a clockwise direction, label each unique hydrogen atom on the aromatic ring using the labels H. through H., if needed. If the hydrogens are chemically shift...
Problem 16.33 Show how you would convert benzaldehyde into each of the compounds using the reagents (A - G) in the table below where necessary. H20+ PBrz NaBH4 A: (1) AICI: (2) H307 SOCI2 Ag(NH3)2 NHz/H20 B: C: D: LiAIH4 E: F: G: X Incorrect. (c) C6H5CHENNHC6H5 + CH stereoisomer (E)-1-phenyl-2-(phenylmethylidene)hydrazine A: PPhz Edit H3C X Incorrect. (d) CGHSCH=CHCH=CH2 H B (a Wittig reagent) B: ? Edit Problem 16.49 Compounds W and X are isomers; they have the molecular formula...
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