A)
Homework Answers
A)
in this Ir shows at anhydride 1818 and at 1750 is for ester carbonyl
from proton coupled spectra 13 C value at near 1bout 160 ppm is for carbonyl and and splitin n+1 for ch2 is triplet and for ch3 is quartet
from nmr spectra it is clear that quartet at downfield is observed due to attachment of ch2 group to electron withdrawing carbonyl and it gives quartet at 2.5 ppm, ch3 gives triplet at 1.2 ppm value.
hence str is 
2)
Add Answer to:
Write the molecular formulas from the mass spec, IR, and H-NMR
of each of the following....
Deduce the following structure of the compound given their IR, H1 NMR, 13C NMR spectra, and...
Deduce the following structure of the compound given their IR, H1
NMR, 13C NMR spectra, and assign IR functional group absorptions
and assign the structure's protons and carbons to their respective
spectral resonances.
Compound 6 1756 IR Spectrum uid Sm) 15820 4000 3000 2000 1600 1200 800 V (cm) 100 55 Mass Spectrum 71 80 70 60 No significant UV M158 (1%) absorption above 220 nm C&H140s 40 80 120 160 200 240 280 m/e 13C NMR Spectrum (50.0 MHz,...
Deduce the following structure of the compound given their IR, H1 NMR, 13C NMR spectra, and...
Deduce the following structure of the compound given their IR, H1
NMR, 13C NMR spectra, and assign IR functional group absorptions
and assign the structure's protons and carbons to their respective
spectral resonances.
Compound 4 Da- U6)+20 IR Spectrum Oquid fim) 1760 800 1200 2000 1600 3000 4000 v (cm) Mass Spectrum 100 43 No significant UV absorption above 220 nm M146 (1% ) 87 20 CH1004 280 40 80 120 m/e 160 200 240 13C NMR Spectrum (1000 MHz,...
Find the compounds using NMR and IR: Problem 85 IR Spectrum (liquid fiim) 1720 1600 2000...
Find the compounds using NMR and IR:
Problem 85 IR Spectrum (liquid fiim) 1720 1600 2000 v (cm) 800 3000 1200 4000 100 Mass Spectrum 73 140 138 80 No significant UV 60 115 absorption above 220 nm 40 M 194/196 (1% ) 20 CeH1102Br 120 160 200 240 280 40 80 m/e 13C NMR Spectrum (50.0 MHz, CDCI, solution) DEPT CH, Cн, сн! solvent proton decoupled 8 (ppm) 160 120 40 200 80 H NMR Spectrum (200 MHz, CDCI,...
Problem 115: Determine the molecule of C7H12O The IR, mass spec, CNMR and HNMR needs to...
Problem 115: Determine the molecule of
C7H12O
The IR, mass spec, CNMR and HNMR needs to be typed out not
handwritten, and the molecule needs to be a digital
representation as well. A base example is provided below:
________________________________________________________________________________________________________
Find and draw the molecule based on these charts (Drawing needs
to be digital and please type out answer)
Use an analysis of each graph and explain what numbers indicate
what groups.
Base Example
IR:
3500: O-H group
1750: Ester
Mass...
Problem 50 IR Spectrum 2000 1600 1200 800 V (cm) Mass Spectrum 80 No significant UV...
Problem 50 IR Spectrum 2000 1600 1200 800 V (cm) Mass Spectrum 80 No significant UV absorption above 220 nm 60 40 80 120 160 200 240 280 m/e 13C NMR Spectrum proton decoupled 200 160 120 40 0 8(ppm) H NMR Spectrum (200 봐な. CDC, solution) 4.0 10 δ (ppm)
Deduce the structure of the following 7 compounds given their IR, 'H NMR, and 13C NMR...
Deduce the structure of the following 7 compounds given their IR, 'H NMR, and 13C NMR spect ra, and draw their structure in the space provided below. For full credit, assign IR functional group absorptions and assign the structure's protons and carbons to their respective spectral resonances. For questions 8-10, provide a step- by-step mechanism for the transformations shown. The quiz must be turned in at the beginning of class on Wednesday, November 20, 2019 Compound 6: C$H14O3 Compound 6...
solve for the unknown molecular structure. #2 IR Spectrum iquid m 1740 2000 v (em) 800...
solve for the unknown molecular structure.
#2 IR Spectrum iquid m 1740 2000 v (em) 800 3000 1600 1200 4000 100 Mass Spectrum 80 No significant UV absorption above 220 nm 5e M116 (1%) 73 C&H1202 120 160 m/e 40 80 200 240 280 13C NMR Spectrum (20.0 MHz, CDa, solution) -CH C-H -CH TMS solvent proton decoupled 200 160 120 80 40 8 (ppm) H NMR Spectrum (100 MHr, CDC, soluon) 20 Hz aas pom 192 ppm 0.03 Pem...
9. Using H NMR, C13 and IR draw the structure and assign IR functional group as...
9.
Using H NMR, C13 and IR draw the structure and assign IR functional
group as well as the structure’s protons and carbons to their
respective spectral resonances.
NOTE: the integration values at the top of the page are left
to right not right to left
d9: CsHeO IR Spectrum quid im) 3410 3000 4000 2000 1600 1200 800 v (om) Mass Spectrum No significant UV absorption above 220 nrm M (1%) 71 CsHaoo 260 200 240 160 120 m/e...
For problems 11-12 answer the questions on the Mass Spectroscopy problem set worksheet. Problem 11 Problem...
For problems 11-12 answer the questions on the Mass Spectroscopy
problem set worksheet.
Problem 11 Problem (z m that IR Spectrum liquid film IR Spectrum oldim 4000 3000 2000 1600 1200 800 4000 3000 2000 V (cm 1800 ) 1200 800 Vom) 0.0 100F Mass Spectrum Mass Spectrum of base peak No significant UV absorption above 220 mm of base 107/109 1015486162 UV spectrum 530 mg/10mis path length: 100 cm solvencyclohexane 120 40 80 120 160 m/e 200 240 280...
Problem 112: treat the peaks at 2.3 ppm as two singlets, as the 1BC NMR confirms. Problem 112 I...
Problem 112: treat the peaks at 2.3 ppm as two singlets, as the 1BC NMR confirms. Problem 112 IR Spectrum 4000 3000 2000 1600 1200 V (cm) Mass Spectrum uv Spectrum 100 A,s. 265 nm (log10ε 2.6) λ max 271 nm 0og10ε 2.6 ) M* 150 solvent: methanol 40 80 120 160 200 240 280 m/e 13C NMR Spectrum (100.0 MHz, CDC, solution) 24 20 ppm 24 proton decoupled 200 160 120 80 40 δ (ppm) H NMR Spectrum 400...
Deduce the following structure of the compound given their IR, H1
NMR, 13C NMR spectra, and assign IR functional group absorptions
and assign the structure's protons and carbons to their respective
spectral resonances.
Compound 6 1756 IR Spectrum uid Sm) 15820 4000 3000 2000 1600 1200 800 V (cm) 100 55 Mass Spectrum 71 80 70 60 No significant UV M158 (1%) absorption above 220 nm C&H140s 40 80 120 160 200 240 280 m/e 13C NMR Spectrum (50.0 MHz,...
Deduce the following structure of the compound given their IR, H1
NMR, 13C NMR spectra, and assign IR functional group absorptions
and assign the structure's protons and carbons to their respective
spectral resonances.
Compound 4 Da- U6)+20 IR Spectrum Oquid fim) 1760 800 1200 2000 1600 3000 4000 v (cm) Mass Spectrum 100 43 No significant UV absorption above 220 nm M146 (1% ) 87 20 CH1004 280 40 80 120 m/e 160 200 240 13C NMR Spectrum (1000 MHz,...
Find the compounds using NMR and IR:
Problem 85 IR Spectrum (liquid fiim) 1720 1600 2000 v (cm) 800 3000 1200 4000 100 Mass Spectrum 73 140 138 80 No significant UV 60 115 absorption above 220 nm 40 M 194/196 (1% ) 20 CeH1102Br 120 160 200 240 280 40 80 m/e 13C NMR Spectrum (50.0 MHz, CDCI, solution) DEPT CH, Cн, сн! solvent proton decoupled 8 (ppm) 160 120 40 200 80 H NMR Spectrum (200 MHz, CDCI,...
Problem 115: Determine the molecule of
C7H12O
The IR, mass spec, CNMR and HNMR needs to be typed out not
handwritten, and the molecule needs to be a digital
representation as well. A base example is provided below:
________________________________________________________________________________________________________
Find and draw the molecule based on these charts (Drawing needs
to be digital and please type out answer)
Use an analysis of each graph and explain what numbers indicate
what groups.
Base Example
IR:
3500: O-H group
1750: Ester
Mass...
Problem 50 IR Spectrum 2000 1600 1200 800 V (cm) Mass Spectrum 80 No significant UV absorption above 220 nm 60 40 80 120 160 200 240 280 m/e 13C NMR Spectrum proton decoupled 200 160 120 40 0 8(ppm) H NMR Spectrum (200 봐な. CDC, solution) 4.0 10 δ (ppm)
Deduce the structure of the following 7 compounds given their IR, 'H NMR, and 13C NMR spect ra, and draw their structure in the space provided below. For full credit, assign IR functional group absorptions and assign the structure's protons and carbons to their respective spectral resonances. For questions 8-10, provide a step- by-step mechanism for the transformations shown. The quiz must be turned in at the beginning of class on Wednesday, November 20, 2019 Compound 6: C$H14O3 Compound 6...
solve for the unknown molecular structure.
#2 IR Spectrum iquid m 1740 2000 v (em) 800 3000 1600 1200 4000 100 Mass Spectrum 80 No significant UV absorption above 220 nm 5e M116 (1%) 73 C&H1202 120 160 m/e 40 80 200 240 280 13C NMR Spectrum (20.0 MHz, CDa, solution) -CH C-H -CH TMS solvent proton decoupled 200 160 120 80 40 8 (ppm) H NMR Spectrum (100 MHr, CDC, soluon) 20 Hz aas pom 192 ppm 0.03 Pem...
9.
Using H NMR, C13 and IR draw the structure and assign IR functional
group as well as the structure’s protons and carbons to their
respective spectral resonances.
NOTE: the integration values at the top of the page are left
to right not right to left
d9: CsHeO IR Spectrum quid im) 3410 3000 4000 2000 1600 1200 800 v (om) Mass Spectrum No significant UV absorption above 220 nrm M (1%) 71 CsHaoo 260 200 240 160 120 m/e...
For problems 11-12 answer the questions on the Mass Spectroscopy
problem set worksheet.
Problem 11 Problem (z m that IR Spectrum liquid film IR Spectrum oldim 4000 3000 2000 1600 1200 800 4000 3000 2000 V (cm 1800 ) 1200 800 Vom) 0.0 100F Mass Spectrum Mass Spectrum of base peak No significant UV absorption above 220 mm of base 107/109 1015486162 UV spectrum 530 mg/10mis path length: 100 cm solvencyclohexane 120 40 80 120 160 m/e 200 240 280...
Problem 112: treat the peaks at 2.3 ppm as two singlets, as the 1BC NMR confirms. Problem 112 IR Spectrum 4000 3000 2000 1600 1200 V (cm) Mass Spectrum uv Spectrum 100 A,s. 265 nm (log10ε 2.6) λ max 271 nm 0og10ε 2.6 ) M* 150 solvent: methanol 40 80 120 160 200 240 280 m/e 13C NMR Spectrum (100.0 MHz, CDC, solution) 24 20 ppm 24 proton decoupled 200 160 120 80 40 δ (ppm) H NMR Spectrum 400...
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