Homework Answers
Degree of unsaturation
Degree of unsaturation = (2C + N - H - X+ 2)/2
C is the number of carbons, N is the number of nitrogens
X is the number of halogens (F, Cl, Br, I) and H is the number of hydrogens
Degree of unsaturation = (2x9 + 2 - 10 +2) / 2 = 6
Hence the compound has 6 degree of unsaturation
IR spectrum
There are sp3 and sp2 C-H stretching presents around ~ 2950 cm-1 and 3050cm-1.
The Peak at 2200 is responsible for CN group
13C NMR
There are 4 peaks at aromatic region (110- 160). The peak at ~95 ppm may responsible for CN group. Apart from only one methyl carbon is present in aliphatic region
1H NMR
1H NMR shows two doublets from 6-8 ppm that belongs to aromatic proton and the pattern confirms that the ring is substituted at 1,4 position. The singlet at 3.0 ppm belongs to methyl group.
using all the information, we can deduce the structure
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(1) Determine the Degree of unsaturation (2) Completely assign all relevant peaks in the IR spectrum...
(1) Determine the Degree of unsaturation (2) Completely assign all relevant peaks in the IR spectrum...
(1) Determine the Degree of unsaturation (2) Completely assign all relevant peaks in the IR spectrum (3) Completely assign all peaks in the 13C NMR spectrum (4) Completely assign all peaks in the 1H NMR spectrum (5) Provide the structures (not the molecular formulas) of the ions: 102 and 120 in the mass spectrum (6) Provide the correct structure for this molecule. Problem 116 IR Spectrum nuomut 4000 1600 1200 So CHON 40 80 120 160 13C NMR Spectrum (500...
4) Calculate degrees of unsaturation. Label all peaks on IR and both proton and carbon NMR...
4) Calculate degrees of unsaturation. Label all peaks on IR and both proton and carbon NMR spectra once you have elucidated the structure. (10 pts) ,درو) hamn 1722 1680 IR Spectrum (KBr disc) 4000 3000 1200 800 2000 1600 V (cm) TH NMR Spectrum الا وCD , 30 exchanges with D, 110 100 P TMS 10 9 8 7 CE 5 4 الا 2 0 Inml 13C NMR Spectrum (50.0 M, COCI, solution) DEPT Chat chat cht solvent prolon decoupled...
Fill out the table below given the information (please explain) Problem 6 IR Spectrum liquid film)...
Fill out the table below given the information (please
explain)
Problem 6 IR Spectrum liquid film) 1716 4000 3000 1200 800 2000 V (cm 1600 ) Mass Spectrum UV Spectrum A max 289 nm (log10€ 1.4) of base peak solvent methanol M. 86 40 80 120 160 200 240 280 m / 13C NMR Spectrum (100 MHz, CDCI, solution) DEPT CHI CH.CH proton decoupled solvent 200 160 120 80 400 8 (ppm) 'H NMR Spectrum (200 MHz, COCI, solution) 10...
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...
On the following page, you will find a spectroscopy problem. For full credit, you must do all of the following (Sh...
On the following page, you will find a spectroscopy problem. For full credit, you must do all of the following (Show your work or you will receive Zero Credit for this Assignment) (1) Calculate the Degrees of Unsaturation (2) Completely assign all relevant peaks in the IR spectrum (3) Completely assign all peaks in the 13C NMR spectrum NOTE: DEPT was discussed last quarter and it is in the NMR PowerPoint) 4) Completely assign all peaks in the IH NMR...
Fall 2019 Problem 5 IR Spectrum LL 4000 1715 3000 2000 1600 V ( 1200 1200...
Fall 2019 Problem 5 IR Spectrum LL 4000 1715 3000 2000 1600 V ( 1200 1200 600 Mass Spectrum مقلللللملللملا of bese peak C₂H00 280 40 80 120 160 200 240 TTTTTT 13C NMR Spectrum (20.0 CDCI, HĆ7 proton decoupled C-H solvent 200 160 120 80 400 (ppm) 'H NMR Spectrum 1900 MHE. COCI, solution) expansion of 400 spectrum 2.21 0.99 pm 9 8 7 6 5 4 3 2 1 (ppm)
Label the spectra and propose a structure for the compound. Compound 5 IR Spectrum Olquid fim...
Label the spectra and propose a structure for the
compound.
Compound 5 IR Spectrum Olquid fim 1740 4000 3000 20 ,1600 1200 300 100% Mass Spectrum M = 150/152 (15) CH,40, CI 240 280 40 80 120 160 200 13C NMR Spectrum (500 M , CDC, son DEPT CH CH CH selvon proton decoupled 200 160 120 80 40 0 8 (ppm) 'H NMR Spectrum (200 MH. COCI, solution 10 9 8 7 6 5 4 3 2 (ppm)
Problem 3 IR Spectrum (quam 4000 3000 2000 1600 V (cm) 1200 800 Mass Spectrum So...
Problem 3 IR Spectrum (quam 4000 3000 2000 1600 V (cm) 1200 800 Mass Spectrum So base per 107/109 152/54 M 180/182 CgH9O2Br 40 80 120 160 mle 200 240 280 13C NMR Spectrum (50.0 CDC, on DEPT CHIC CHA over proton decoupled 200 160 120 80 400 8 (ppm) 'H NMR Spectrum (200 M COCI, solution 40 pm 10 9 8 7 6 5 4 3 2 8 (ppm)
need help elucidating this please IR Spectrum liquid 4000 3000 2000 2000 1600 V (cm) 1000...
need help elucidating this please
IR Spectrum liquid 4000 3000 2000 2000 1600 V (cm) 1000 1200 1200 00 100F Mass Spectrum M . 152 280 80 120 180 200 240 40 m / expansion 13C NMR Spectrum (100 O MHE. COCI, solution 130 120 pm DEPT CH CH. CH 10178 por proton decoupled 08 (ppm) 40 80 120 200 160 'H NMR Spectrum (400 MH. COCI, solution) 70 74 pp 5 4 3 2 8 (ppm) 10 9
Determine the following of the unknown compound C8H9NO: Degree of unsaturation (show calculation) – 1 point...
Determine the following of the unknown compound C8H9NO:
Degree of unsaturation (show calculation) – 1 point
IR spectrum assigned peaks – 1 point
13C NMR spectrum assigned peaks – 1 point
1H NMR spectrum assigned peaks – 3 points
Structure of unknown – 4 points
4. CgHgNO U- 11 1o The Science Center will only provide limited Assistance. 200 180 160 140 120 100 80 60 40 20 ppm
(1) Determine the Degree of unsaturation (2) Completely assign all relevant peaks in the IR spectrum (3) Completely assign all peaks in the 13C NMR spectrum (4) Completely assign all peaks in the 1H NMR spectrum (5) Provide the structures (not the molecular formulas) of the ions: 102 and 120 in the mass spectrum (6) Provide the correct structure for this molecule. Problem 116 IR Spectrum nuomut 4000 1600 1200 So CHON 40 80 120 160 13C NMR Spectrum (500...
4) Calculate degrees of unsaturation. Label all peaks on IR and both proton and carbon NMR spectra once you have elucidated the structure. (10 pts) ,درو) hamn 1722 1680 IR Spectrum (KBr disc) 4000 3000 1200 800 2000 1600 V (cm) TH NMR Spectrum الا وCD , 30 exchanges with D, 110 100 P TMS 10 9 8 7 CE 5 4 الا 2 0 Inml 13C NMR Spectrum (50.0 M, COCI, solution) DEPT Chat chat cht solvent prolon decoupled...
Fill out the table below given the information (please
explain)
Problem 6 IR Spectrum liquid film) 1716 4000 3000 1200 800 2000 V (cm 1600 ) Mass Spectrum UV Spectrum A max 289 nm (log10€ 1.4) of base peak solvent methanol M. 86 40 80 120 160 200 240 280 m / 13C NMR Spectrum (100 MHz, CDCI, solution) DEPT CHI CH.CH proton decoupled solvent 200 160 120 80 400 8 (ppm) 'H NMR Spectrum (200 MHz, COCI, solution) 10...
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...
On the following page, you will find a spectroscopy problem. For full credit, you must do all of the following (Show your work or you will receive Zero Credit for this Assignment) (1) Calculate the Degrees of Unsaturation (2) Completely assign all relevant peaks in the IR spectrum (3) Completely assign all peaks in the 13C NMR spectrum NOTE: DEPT was discussed last quarter and it is in the NMR PowerPoint) 4) Completely assign all peaks in the IH NMR...
Fall 2019 Problem 5 IR Spectrum LL 4000 1715 3000 2000 1600 V ( 1200 1200 600 Mass Spectrum مقلللللملللملا of bese peak C₂H00 280 40 80 120 160 200 240 TTTTTT 13C NMR Spectrum (20.0 CDCI, HĆ7 proton decoupled C-H solvent 200 160 120 80 400 (ppm) 'H NMR Spectrum 1900 MHE. COCI, solution) expansion of 400 spectrum 2.21 0.99 pm 9 8 7 6 5 4 3 2 1 (ppm)
Label the spectra and propose a structure for the
compound.
Compound 5 IR Spectrum Olquid fim 1740 4000 3000 20 ,1600 1200 300 100% Mass Spectrum M = 150/152 (15) CH,40, CI 240 280 40 80 120 160 200 13C NMR Spectrum (500 M , CDC, son DEPT CH CH CH selvon proton decoupled 200 160 120 80 40 0 8 (ppm) 'H NMR Spectrum (200 MH. COCI, solution 10 9 8 7 6 5 4 3 2 (ppm)
Problem 3 IR Spectrum (quam 4000 3000 2000 1600 V (cm) 1200 800 Mass Spectrum So base per 107/109 152/54 M 180/182 CgH9O2Br 40 80 120 160 mle 200 240 280 13C NMR Spectrum (50.0 CDC, on DEPT CHIC CHA over proton decoupled 200 160 120 80 400 8 (ppm) 'H NMR Spectrum (200 M COCI, solution 40 pm 10 9 8 7 6 5 4 3 2 8 (ppm)
need help elucidating this please
IR Spectrum liquid 4000 3000 2000 2000 1600 V (cm) 1000 1200 1200 00 100F Mass Spectrum M . 152 280 80 120 180 200 240 40 m / expansion 13C NMR Spectrum (100 O MHE. COCI, solution 130 120 pm DEPT CH CH. CH 10178 por proton decoupled 08 (ppm) 40 80 120 200 160 'H NMR Spectrum (400 MH. COCI, solution) 70 74 pp 5 4 3 2 8 (ppm) 10 9
Determine the following of the unknown compound C8H9NO:
Degree of unsaturation (show calculation) – 1 point
IR spectrum assigned peaks – 1 point
13C NMR spectrum assigned peaks – 1 point
1H NMR spectrum assigned peaks – 3 points
Structure of unknown – 4 points
4. CgHgNO U- 11 1o The Science Center will only provide limited Assistance. 200 180 160 140 120 100 80 60 40 20 ppm
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