could you please help me to explain the problem with answers ?
Homework Answers
1.Aromatic proton will not show same chemical shift because there chemical environment are different.
2. Aromatic proton will not show singlet, because each proton is having neighbouring proton.
3. This molecule is having symmetry so there will be two ortho proton will show same chemical shift and will show doublet similarly meta protons (2 proton) will show same chemical shift with doublet of doublet and para position proton will show different chemical shift.
4. So there will 3 different kinds of proton peak instead of one.
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could you please help me to explain the problem with
answers ?
CH,Br 3H doublet at...
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)...
Propose structures for compounds that fit the following 'H NMR data. CH,Br 2H quintet at 2.48,...
Propose structures for compounds that fit the following 'H NMR data. CH,Br 2H quintet at 2.48, J=6 Hz 4H triplet at 3.5 8, J= 6 Hz 2. C.H.O 2H quartet at 2.5 8, 3H Singlet at 2.0 8, 3H triplet at 1.08 1. C,H40 6H triplet at 0.9 8, J = 7 Hz 4H sextet at 1.6 8, J= 7 Hz 4H triplet at 2.48, J= 7 Hz CH4 6H doublet at 1.28, J= 7 Hz 3H singlet at 2.38...
Can you explain problem 12 and 13 for me I have the right answers I just...
Can you explain problem 12 and 13 for me I have the right
answers I just don't know how to know the difference. For 12 I was
stuck between A and B and for 13 I was also stuck between A and
B
( 12. Which compound below fits the following proton NMR data? triplet singlet quartet 81.22 (3H) 81.98 (3H). 84.07 (2H) A. ALO ZH-quartet 34 - triplet 3H-singlet hu 0 B) CH3COCH2CH3 A) CH3CH2COCH3 OCH3 DU CH,CCH OCH3...
and draw the Structures Determine the Hydrogen Deficiency Index Challenges: C4H8O2 1.2 8: 3H triplet 3.0...
and draw the Structures Determine the Hydrogen Deficiency Index Challenges: C4H8O2 1.2 8: 3H triplet 3.0 8: 2H quartet 3.6 8: 3H singlet CoH14 1.3 8: 9H singlet 7.2 8:5H multiplet C&H;N 3.7 8:2H singlet 7.2 8:5H singlet C.H.CI,O2 1.4 8: 3H triplet 4.3 8: 2H quartet 5.9 8: 1H singlet CsH1002 1.2 8:6H doublet 2.0 8:3H singlet 5.0 8: 1H septet 'H NMR Practice Problems Best thing is to first determine the Hydrogen Deficiency Index so you know the...
I need help to solve this with a clear answer 6 and 7) When Compound X...
I need help to solve this with a clear answer
6 and 7) When Compound X is treated with Li, then Cul, then Compound Y, the product is 2,2-dimethyl-5-phenylhexane. The H NMR spectrum for Compound X is provided below. H NMR spectrum for Compound X: 2.0 (3H, doublet), 5.0 (1H, quartet), 7.3 (5H, multiplet) Compound Y Compound X2,2-dimethyl-5-phenylhexane Li Cul 6) What is the most likely structure for Compound X? Br Br Br Br
please help! c 3.86 ppm, singlet, 3H d-2.52 ppm, singlet, 3H Compound A: CoH1002 TSI a...
please help!
c 3.86 ppm, singlet, 3H d-2.52 ppm, singlet, 3H Compound A: CoH1002 TSI a 7.89 ppm, doublet, 2H b-7.89 ppm, doublet, 2H Unsat. Index- (2C+2-H-X+N)/2 8, ppm 9.0 7.0 60 3.0 2.0 ? 3, 5-dimethylbenzaldehyde, NaOH, H2O, heat h 2.31 ppm, singlet, 6H 3-1 a #8 ppm, doublet, 2H b-7.60 ppm, doublet, 1H c- 7.33 ppm, singlet, 2H Compound B: C1H1O2 g-3.86 ppm, singlet, 3H d-7.28 ppm, doublet, 1 H e 6.99 ppm, singlet, 1H C f 6.98...
Help me with this NMR problem please! 2. (12 pt) Unknown compound has a molecular formula...
Help me with this NMR problem please!
2. (12 pt) Unknown compound has a molecular formula of C11H120. The proton NMR spectrum is presented below. Identify substructures (explain why) and draw your final solution in the space provided C,420 1H зн эн J=7.3 Hz 1H 1H 1H J=7.3 Hz 1H J=7.3 Hz 1H J=1.5 Hz J=1.5 Hz J=7.3 Hz PPM
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...
can someone help me with this H-NMR? 364 Unsat. Index = (20 +2 -H -X +NY2...
can
someone help me with this H-NMR?
364 Unsat. Index = (20 +2 -H -X +NY2 = 13 6.86 700 d=2.44 ppm, Compound 18a. C, H, N 702 614 quartet, 2H 243 100 104 b = 6.85 ppm, c=3.64 ppm, a = 7.01 ppm, doublet, 2H 05 e = 1.06 ppm, doublet, 2H singlet, 2H 2.41 triplet, 3H 8, ppm 00 8.0 75 70 65 60 5.5 5.0 40 35 30 25 20 1.5 10 05 1) MeMgBr 12) H,O,...
could you please help me to explain the problem with answers and explain why peak c...
could you please help me to explain the problem with
answers and explain why peak c is 3h triplets ?
points) A compound, C&H-N, has the following IR and 'H NMR spectra. 100 momw Transmittance %) 0 TTT 500 1000 4000 3500 3000 2500 2000 1500 Wavenumber (cm) peak a: 2H, triplet peak b: 2H, multiplet peak c: 3H, triplet Intensity - TMS (a) (8 points) Calculate the degree of unsaturation for this compound. Degree of unsaturation = 2 (b)...
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)...
Propose structures for compounds that fit the following 'H NMR data. CH,Br 2H quintet at 2.48, J=6 Hz 4H triplet at 3.5 8, J= 6 Hz 2. C.H.O 2H quartet at 2.5 8, 3H Singlet at 2.0 8, 3H triplet at 1.08 1. C,H40 6H triplet at 0.9 8, J = 7 Hz 4H sextet at 1.6 8, J= 7 Hz 4H triplet at 2.48, J= 7 Hz CH4 6H doublet at 1.28, J= 7 Hz 3H singlet at 2.38...
Can you explain problem 12 and 13 for me I have the right
answers I just don't know how to know the difference. For 12 I was
stuck between A and B and for 13 I was also stuck between A and
B
( 12. Which compound below fits the following proton NMR data? triplet singlet quartet 81.22 (3H) 81.98 (3H). 84.07 (2H) A. ALO ZH-quartet 34 - triplet 3H-singlet hu 0 B) CH3COCH2CH3 A) CH3CH2COCH3 OCH3 DU CH,CCH OCH3...
and draw the Structures Determine the Hydrogen Deficiency Index Challenges: C4H8O2 1.2 8: 3H triplet 3.0 8: 2H quartet 3.6 8: 3H singlet CoH14 1.3 8: 9H singlet 7.2 8:5H multiplet C&H;N 3.7 8:2H singlet 7.2 8:5H singlet C.H.CI,O2 1.4 8: 3H triplet 4.3 8: 2H quartet 5.9 8: 1H singlet CsH1002 1.2 8:6H doublet 2.0 8:3H singlet 5.0 8: 1H septet 'H NMR Practice Problems Best thing is to first determine the Hydrogen Deficiency Index so you know the...
I need help to solve this with a clear answer
6 and 7) When Compound X is treated with Li, then Cul, then Compound Y, the product is 2,2-dimethyl-5-phenylhexane. The H NMR spectrum for Compound X is provided below. H NMR spectrum for Compound X: 2.0 (3H, doublet), 5.0 (1H, quartet), 7.3 (5H, multiplet) Compound Y Compound X2,2-dimethyl-5-phenylhexane Li Cul 6) What is the most likely structure for Compound X? Br Br Br Br
please help!
c 3.86 ppm, singlet, 3H d-2.52 ppm, singlet, 3H Compound A: CoH1002 TSI a 7.89 ppm, doublet, 2H b-7.89 ppm, doublet, 2H Unsat. Index- (2C+2-H-X+N)/2 8, ppm 9.0 7.0 60 3.0 2.0 ? 3, 5-dimethylbenzaldehyde, NaOH, H2O, heat h 2.31 ppm, singlet, 6H 3-1 a #8 ppm, doublet, 2H b-7.60 ppm, doublet, 1H c- 7.33 ppm, singlet, 2H Compound B: C1H1O2 g-3.86 ppm, singlet, 3H d-7.28 ppm, doublet, 1 H e 6.99 ppm, singlet, 1H C f 6.98...
Help me with this NMR problem please!
2. (12 pt) Unknown compound has a molecular formula of C11H120. The proton NMR spectrum is presented below. Identify substructures (explain why) and draw your final solution in the space provided C,420 1H зн эн J=7.3 Hz 1H 1H 1H J=7.3 Hz 1H J=7.3 Hz 1H J=1.5 Hz J=1.5 Hz J=7.3 Hz PPM
can
someone help me with this H-NMR?
364 Unsat. Index = (20 +2 -H -X +NY2 = 13 6.86 700 d=2.44 ppm, Compound 18a. C, H, N 702 614 quartet, 2H 243 100 104 b = 6.85 ppm, c=3.64 ppm, a = 7.01 ppm, doublet, 2H 05 e = 1.06 ppm, doublet, 2H singlet, 2H 2.41 triplet, 3H 8, ppm 00 8.0 75 70 65 60 5.5 5.0 40 35 30 25 20 1.5 10 05 1) MeMgBr 12) H,O,...
could you please help me to explain the problem with
answers and explain why peak c is 3h triplets ?
points) A compound, C&H-N, has the following IR and 'H NMR spectra. 100 momw Transmittance %) 0 TTT 500 1000 4000 3500 3000 2500 2000 1500 Wavenumber (cm) peak a: 2H, triplet peak b: 2H, multiplet peak c: 3H, triplet Intensity - TMS (a) (8 points) Calculate the degree of unsaturation for this compound. Degree of unsaturation = 2 (b)...
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