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Draw the splitting tree for complex splitting for proton H, below. (10 points) Jab (Hz) 12...
6. Use a splitting tree to predict the shape and relative heights of the alkene HB...
6. Use a splitting tree to predict the shape and relative heights of the alkene HB multiplet. For reference: Менс JAB = 6 Hz; JBC = 15 Hz; and JCD = 6 Hz HA Me 1 Y HD HD 1 HB Ho RELATIVE HEIGHTS MULTIPLET What do you predict for the alkene Hc multiplet? | RELATIVE HEIGHTS
Tree diagram for Ha, Hb, and Hc? 400 Hz laser used? Hi Proton Ho Ho. H....
Tree diagram for Ha, Hb, and Hc? 400 Hz laser used?
Hi Proton Ho Ho. H. H Chemical shift (ppm) Splitting Pattern 2.9-3 i Doublet of doublet 3.1-3.2 Doublet of doublet Doublet of doublet 6.8 Doublet 7.5 Multiplck Singlet Doublet Integration
2. Consider the protons labeled H., H., H., of the compound shown below. Each of these...
2. Consider the protons labeled H., H., H., of the compound shown below. Each of these protons are chemically different and are split by at least one other type of proton. coupling constants are shown below. HA HOHC C= "Hc JAB = 15.1 Hz JBC = 6.4 Hz Draw the splitting tree for each proton, H., Ho, and H. 3. Propose a structure for the following compounds piven the spectra and molecula formula. Briefly describe how each spectrum supports your...
b) Consider the proton NMR spectrum of the following ketone: O b H C=C C. d...
b) Consider the proton NMR spectrum of the following ketone: O b H C=C C. d CH H с CH: i) ii) Predict the chemical shifts of each type of proton. Predict the multiplicity of NMR signals for each type of protons. Draw a tree diagram to show the splitting predicted for Hy and indicate the number of lines obtain (given Joc = 15 Hz, Jab = 7 Hz). (7 marks)
1a) Draw the condensed structure of isopentane. b.) Estimate what the 1H NMR spectrum of isopentane...
1a) Draw the condensed structure of isopentane. b.) Estimate what the 1H NMR spectrum of isopentane is expected to look like. c.) Clearly label each proton environments and match each to its signal. d.) Be sure to include appropriate splitting. e.) Above each signal, include the appropriate integration. 2 a.) Which of the indicated protons (Ha, Hb and Ho) is expected to be split the most, and why? b.) Provide the splitting diagrams for the two proton environments with the...
Someone said it's not clear. Not sure what you're looking for. 4. a. For the molecule below, if simple splitting (follows the N+1 rule) occurs, Ha should appear as a (circle one: singlet, doub...
Someone said it's not clear.
Not sure what you're looking for.
4. a. For the molecule below, if simple splitting (follows the N+1 rule) occurs, Ha should appear as a (circle one: singlet, doublet, triplet, quartet) and Hb should appear as a (circle one: singlet, doublet, triplet, quartet) На 0 нь Hc b. Because Hb is attached to a chiral carbon atom, the molecule has diastereotopic Hs and the splitting becomes more complex. The nmr signal for Ha shows up...
where did I go wrong? 6. Predict the number of 'H signals that will appear and the their splitting patterns. Label e...
where did I go wrong?
6. Predict the number of 'H signals that will appear and the their splitting patterns. Label each different proton as Ha, Hb,... (5 pts each) b) YA с в X signals +2 3 signals 3 signal One 8 VO 6 signals I a t2 +2.5 XSignals
Please fully answer all parts of the question. 5. (10 points) Analysis of 'H NMR spectrum....
Please fully answer all parts of the question.
5. (10 points) Analysis of 'H NMR spectrum. Below is the 'H NMR spectrum of the product from this week's experiment. 3H, t, J = 7.1 Hz 1H, d, J= 15.8 Hz 2H, q, J = 7.1 Hz 5H, m 1H, d, J= 15.8 Hz. TT 2 1 10 9 8 7 6 5 4 3 1 ppm Summary of peaks (ppm): 1.32 (3H, t, J = 7.1 Hz), 4.24 (2H, q,...
Question 35 (2 points) In the molecule shown below, determine which of the highlighted C-H bonds...
Question 35 (2 points) In the molecule shown below, determine which of the highlighted C-H bonds a to d is expected to have the lowest bond dissociation energy? Ha HD Hc Hd Oa) C-Hc Ob) C-Hb Oc) C-Ha O d) C-Hd Question 36 (2 points) Predict the major product(s) of the following reaction. Br2 light Br . Br Br CH2Br. CH2B1 -CH2Br Br IV Br O a) 11 Ob) IV Oc) III Od
10. Draw a tree diagram (including signal type dd, etc.) and J values) for each signal...
10. Draw a tree diagram (including signal type dd, etc.) and J values) for each signal you would expect to see in a second order spectrum for each proton In 3-phenylpropone given that Jan - 2.00 H - 10.00 H - 15.00 H. Jop - 4.00 Hz, Jy 4.0 Hz, Jro = 4.0 Hz, Jo - 1.0 Hz. DO NOT take long range coupling into account. Also assume that you will see distinct signals for the aromatic hydrogens identify the...
6. Use a splitting tree to predict the shape and relative heights of the alkene HB multiplet. For reference: Менс JAB = 6 Hz; JBC = 15 Hz; and JCD = 6 Hz HA Me 1 Y HD HD 1 HB Ho RELATIVE HEIGHTS MULTIPLET What do you predict for the alkene Hc multiplet? | RELATIVE HEIGHTS
Tree diagram for Ha, Hb, and Hc? 400 Hz laser used?
Hi Proton Ho Ho. H. H Chemical shift (ppm) Splitting Pattern 2.9-3 i Doublet of doublet 3.1-3.2 Doublet of doublet Doublet of doublet 6.8 Doublet 7.5 Multiplck Singlet Doublet Integration
2. Consider the protons labeled H., H., H., of the compound shown below. Each of these protons are chemically different and are split by at least one other type of proton. coupling constants are shown below. HA HOHC C= "Hc JAB = 15.1 Hz JBC = 6.4 Hz Draw the splitting tree for each proton, H., Ho, and H. 3. Propose a structure for the following compounds piven the spectra and molecula formula. Briefly describe how each spectrum supports your...
b) Consider the proton NMR spectrum of the following ketone: O b H C=C C. d CH H с CH: i) ii) Predict the chemical shifts of each type of proton. Predict the multiplicity of NMR signals for each type of protons. Draw a tree diagram to show the splitting predicted for Hy and indicate the number of lines obtain (given Joc = 15 Hz, Jab = 7 Hz). (7 marks)
1a) Draw the condensed structure of isopentane. b.) Estimate what the 1H NMR spectrum of isopentane is expected to look like. c.) Clearly label each proton environments and match each to its signal. d.) Be sure to include appropriate splitting. e.) Above each signal, include the appropriate integration. 2 a.) Which of the indicated protons (Ha, Hb and Ho) is expected to be split the most, and why? b.) Provide the splitting diagrams for the two proton environments with the...
Someone said it's not clear.
Not sure what you're looking for.
4. a. For the molecule below, if simple splitting (follows the N+1 rule) occurs, Ha should appear as a (circle one: singlet, doublet, triplet, quartet) and Hb should appear as a (circle one: singlet, doublet, triplet, quartet) На 0 нь Hc b. Because Hb is attached to a chiral carbon atom, the molecule has diastereotopic Hs and the splitting becomes more complex. The nmr signal for Ha shows up...
where did I go wrong?
6. Predict the number of 'H signals that will appear and the their splitting patterns. Label each different proton as Ha, Hb,... (5 pts each) b) YA с в X signals +2 3 signals 3 signal One 8 VO 6 signals I a t2 +2.5 XSignals
Please fully answer all parts of the question.
5. (10 points) Analysis of 'H NMR spectrum. Below is the 'H NMR spectrum of the product from this week's experiment. 3H, t, J = 7.1 Hz 1H, d, J= 15.8 Hz 2H, q, J = 7.1 Hz 5H, m 1H, d, J= 15.8 Hz. TT 2 1 10 9 8 7 6 5 4 3 1 ppm Summary of peaks (ppm): 1.32 (3H, t, J = 7.1 Hz), 4.24 (2H, q,...
Question 35 (2 points) In the molecule shown below, determine which of the highlighted C-H bonds a to d is expected to have the lowest bond dissociation energy? Ha HD Hc Hd Oa) C-Hc Ob) C-Hb Oc) C-Ha O d) C-Hd Question 36 (2 points) Predict the major product(s) of the following reaction. Br2 light Br . Br Br CH2Br. CH2B1 -CH2Br Br IV Br O a) 11 Ob) IV Oc) III Od
10. Draw a tree diagram (including signal type dd, etc.) and J values) for each signal you would expect to see in a second order spectrum for each proton In 3-phenylpropone given that Jan - 2.00 H - 10.00 H - 15.00 H. Jop - 4.00 Hz, Jy 4.0 Hz, Jro = 4.0 Hz, Jo - 1.0 Hz. DO NOT take long range coupling into account. Also assume that you will see distinct signals for the aromatic hydrogens identify the...
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