Homework Answers
Liquid Extraction NMR and IR The 'H NMR for the unknown C: 8.0 7.5 7.0 6.5...
Liquid Extraction NMR and IR The 'H NMR for the unknown C: 8.0 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 1.0 0.5 ppm Proton peak Integration Neighbors (n) Chemical Shift (ppm) Splitting pattern (n+1) (report as singlet/doublet/triplet/ete. 9 b. C must be an aliphatic alcohol. There is a strong O-H stretch in the IR and zero degrees of unsaturation. The remaining structure is determined by 'H NMR. (c) Predicted Structure C (label hydrogens with...
NMR & IR post lab question help! NMR and IR 4.5 4.0 3.5 3.0 2.5 2.0...
NMR & IR post lab question help!
NMR and IR 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 ppm IH The 'H NMR for the unknown C: 20 7.5 7.0 6.5 6.0 6.5 5.0 4.5 4.0 3.5 3.0 25 20 519 05 Proton peak Integration Chemical Shift (ppm) Neighbors (m) Splitting pattern (+1) report as singlet/doublettripletlets. C must be an aliphatic alcohol. There is a strong O-H stretch in the IR and zero degrees of unsaturation. The remaining structure...
NMR and IR The 'H NMR for the unknown C: O 70 70 20 85 60...
NMR and IR The 'H NMR for the unknown C: O 70 70 20 85 60 15 20 30 30 25 20 10 % pom Proton peak Integration Chemical Shift (ppm) Neighbors (n) Splitting pattern (n+1) report as singlet/doublet/tripletete 12 3.4 C must be an aliphatic alcohol. There is a strong O-H stretch in the IR and zero degrees of unsaturation. The remaining structure is determined by 'H NMR. (e) Predicted Structure C (label hydrogens with letter for assignment below):...
HW4. A student ran a reaction and obtained the following data for an unknown by-product C that contains...
HW4. A student ran a reaction and obtained the following data for an unknown by-product C that contains an alcohol functionality. Alcohol C was purified by column chromatography. Fill in the data below Molecular Formula of C (derived by Mass Spec. analysis): C&H14O The degrees of unsaturation is: Given the degrees calculated, this means: (a) (b) The FT-IR for the unknown alcohol C 100 50- 0- 1000 2000 wavenumber (cm) 3000 1500 500 4000 Bond vibration (e.g. stretch or bend)...
b. NMR and IR When the second student runs a 'H NMR of the reaction (shown...
b. NMR and IR When the second student runs a 'H NMR of the reaction (shown below) the compound present appears to be rl 8.0 7.5 7.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0s ppm Fill in the missing data in the table below as it pertains to the second student's 'H NMR spectrum above c. Proton peak Integration Chemical Shift Neighbors (n) Splitting pattern (n+) (ppm) 2.4 Report as singlet/doublet/triplet/ete. triplet singlet multiplet な 1.6 0.9 3....
Analyze the proton and carbon NMR of hexane PROTON_01 4632-2_Hexane -109 7.5 7.0 6.5 6.0 5.5...
Analyze the proton and carbon NMR of hexane
PROTON_01 4632-2_Hexane -109 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 1.0 0.5 0.0 CARBON_01 4632-2_Hexane www hwilowWWWMWWMWANAMUbwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwww/WWWWWWWWWWWWwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwww TTTT 230 220 210 200 190 180 170 160 150 140 130 120 110 fi (ppm) 100 90 80 70 60 50 40 30 20 10 0 -10
Analyze the peaks in this NMR spectrum of p-nitrophenol assigning the peaks, discuss multiplicity, splitting, shielding/deshielding...
Analyze the peaks in this NMR spectrum of p-nitrophenol
assigning the peaks, discuss multiplicity, splitting,
shielding/deshielding effects, and integration.
I have assigned the peaks but i am not sure if i have done it
correctly. Is there expected to a peak for the -OH? or is there not
a peak because the proton is exchangeable? is there complex or
normal splitting observed?
901 C 18 1.00 19 -429 -7.5 7030 P-nitrophenol OH H NMR, nitrophenol in CDCl un A 7...
Analyze the proton and carbon NMR for 4-cyclohexane PROTON_02 4632-4-cyclohexane 7.5 7.0 6.5 6.0 5.5 5.0...
Analyze the proton and carbon NMR for
4-cyclohexane
PROTON_02 4632-4-cyclohexane 7.5 7.0 6.5 6.0 5.5 5.0 4.5 a 4.0 fi (ppm) 3.5 3.0 2.5 2.0 1.5 1.0 0.5 CARBON_01 4632-4-cyclohexane WAWANAN www 230 220 210 200 190 180 170160 150 140 130 120 110 f1 (ppm) 100 90 80 70 60 50 40 30 20 10 0 -10
I've zoomed in and taken more pictures of the 4 H NMR spectrum. I would appreciate...
I've zoomed in and taken more pictures of the 4 H NMR
spectrum. I would appreciate any explaination or work. Thank you so
much!!
6. (Bpts) For each example below, draw a structure that is consistent with the formula and 'H NMR spectrum provided. In some cases, additional IR spectral information is provided. Assign each peak to the appropriate hydrogen atoms in the structure by using the labeling convention discussed in class. Ciottie interes 40 - 5.0 S&= 6.2 Adjusted...
formula is C4H10O 1. Fill in the table below. (7 pts.) Peak letter Chemical shift Splitting...
formula is C4H10O
1. Fill in the table below. (7 pts.) Peak letter Chemical shift Splitting pattern Integration # Type of H that made the peak (i.e CH) 2. Calculate the degree of unsaturation for your compound. (3 pts.) 3. Predict a structure for your unknown compound. (5 pts.) 4. Label the hydrogens in your structure with the letter of the NMR peak with which they correspond. (5pts.) 5. Explain how you arrived at your predicted structure. For example, "The...
Liquid Extraction NMR and IR The 'H NMR for the unknown C: 8.0 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 1.0 0.5 ppm Proton peak Integration Neighbors (n) Chemical Shift (ppm) Splitting pattern (n+1) (report as singlet/doublet/triplet/ete. 9 b. C must be an aliphatic alcohol. There is a strong O-H stretch in the IR and zero degrees of unsaturation. The remaining structure is determined by 'H NMR. (c) Predicted Structure C (label hydrogens with...
NMR & IR post lab question help!
NMR and IR 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 ppm IH The 'H NMR for the unknown C: 20 7.5 7.0 6.5 6.0 6.5 5.0 4.5 4.0 3.5 3.0 25 20 519 05 Proton peak Integration Chemical Shift (ppm) Neighbors (m) Splitting pattern (+1) report as singlet/doublettripletlets. C must be an aliphatic alcohol. There is a strong O-H stretch in the IR and zero degrees of unsaturation. The remaining structure...
NMR and IR The 'H NMR for the unknown C: O 70 70 20 85 60 15 20 30 30 25 20 10 % pom Proton peak Integration Chemical Shift (ppm) Neighbors (n) Splitting pattern (n+1) report as singlet/doublet/tripletete 12 3.4 C must be an aliphatic alcohol. There is a strong O-H stretch in the IR and zero degrees of unsaturation. The remaining structure is determined by 'H NMR. (e) Predicted Structure C (label hydrogens with letter for assignment below):...
HW4. A student ran a reaction and obtained the following data for an unknown by-product C that contains an alcohol functionality. Alcohol C was purified by column chromatography. Fill in the data below Molecular Formula of C (derived by Mass Spec. analysis): C&H14O The degrees of unsaturation is: Given the degrees calculated, this means: (a) (b) The FT-IR for the unknown alcohol C 100 50- 0- 1000 2000 wavenumber (cm) 3000 1500 500 4000 Bond vibration (e.g. stretch or bend)...
b. NMR and IR When the second student runs a 'H NMR of the reaction (shown below) the compound present appears to be rl 8.0 7.5 7.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0s ppm Fill in the missing data in the table below as it pertains to the second student's 'H NMR spectrum above c. Proton peak Integration Chemical Shift Neighbors (n) Splitting pattern (n+) (ppm) 2.4 Report as singlet/doublet/triplet/ete. triplet singlet multiplet な 1.6 0.9 3....
Analyze the proton and carbon NMR of hexane
PROTON_01 4632-2_Hexane -109 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 1.0 0.5 0.0 CARBON_01 4632-2_Hexane www hwilowWWWMWWMWANAMUbwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwww/WWWWWWWWWWWWwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwww TTTT 230 220 210 200 190 180 170 160 150 140 130 120 110 fi (ppm) 100 90 80 70 60 50 40 30 20 10 0 -10
Analyze the peaks in this NMR spectrum of p-nitrophenol
assigning the peaks, discuss multiplicity, splitting,
shielding/deshielding effects, and integration.
I have assigned the peaks but i am not sure if i have done it
correctly. Is there expected to a peak for the -OH? or is there not
a peak because the proton is exchangeable? is there complex or
normal splitting observed?
901 C 18 1.00 19 -429 -7.5 7030 P-nitrophenol OH H NMR, nitrophenol in CDCl un A 7...
Analyze the proton and carbon NMR for
4-cyclohexane
PROTON_02 4632-4-cyclohexane 7.5 7.0 6.5 6.0 5.5 5.0 4.5 a 4.0 fi (ppm) 3.5 3.0 2.5 2.0 1.5 1.0 0.5 CARBON_01 4632-4-cyclohexane WAWANAN www 230 220 210 200 190 180 170160 150 140 130 120 110 f1 (ppm) 100 90 80 70 60 50 40 30 20 10 0 -10
I've zoomed in and taken more pictures of the 4 H NMR
spectrum. I would appreciate any explaination or work. Thank you so
much!!
6. (Bpts) For each example below, draw a structure that is consistent with the formula and 'H NMR spectrum provided. In some cases, additional IR spectral information is provided. Assign each peak to the appropriate hydrogen atoms in the structure by using the labeling convention discussed in class. Ciottie interes 40 - 5.0 S&= 6.2 Adjusted...
formula is C4H10O
1. Fill in the table below. (7 pts.) Peak letter Chemical shift Splitting pattern Integration # Type of H that made the peak (i.e CH) 2. Calculate the degree of unsaturation for your compound. (3 pts.) 3. Predict a structure for your unknown compound. (5 pts.) 4. Label the hydrogens in your structure with the letter of the NMR peak with which they correspond. (5pts.) 5. Explain how you arrived at your predicted structure. For example, "The...
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