Homework Answers
IR: 3421: -NH stretching
-OH is not present as this peak is not broad.
1684: amide C=O stretching
Mass: M+ = 149
odd mass, hence one of odd numbers of nitrogens present.
Rule of 13: divide 149 by 13: it gives 11 and remainder is 6 so the
CH formula is: C11H11+6 = C11H17
Now add one nitrogen by replacing CH2: C10H15N
Add one oxygen by replacing CH4: C9H11NO
Degree of unsaturation = ((2C+2)+N-H-X)/2 = ((20)+1-11-0)/2 =
5
Out of 5 sites of unsaturation 1 accounts for C=O and 4 for benzene
ring.
As there is a peak at 106/107 means it is losing C=O(CH3) (acyl)
group.
Thus the compound is N-(4-methylphenyl)acetamide.
There are other possibilities as well, the methyl group could be on
ortho or meta position.
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problem set .pdf (page 11 of 20) 3421 IR Spectrum (KBr disc) 1684 4000 3000...
need help elucidating please IR Spectrum (KBr disc) 4000 3000 2000 1600 1200 800 V (cm') UV Spectrum 100 Amax 310 n...
need help elucidating please
IR Spectrum (KBr disc) 4000 3000 2000 1600 1200 800 V (cm') UV Spectrum 100 Amax 310 nm log10 3.3) Mass Spectrum 80 mex 261 nm (log.oe 4.3) 120 60 solvent: methanol M 199/201 40 max 262 nm (log,0E 3.0) pa 257 nm (logE 3.0) Amax 222 nm 0og0 4.0) 155/157 20 184/186 40 280 80 200 240 120 160 solvent: methanol / HC m/e 13C NMR Spectrum (500 MHz, CDCI, solution) DEPT CH, CHt CH...
Identify Structure Problem 121 ཀ་ IR Spectrum (KBr disc) 1728 4000 3000 1200 800 2000 1600...
Identify Structure
Problem 121 ཀ་ IR Spectrum (KBr disc) 1728 4000 3000 1200 800 2000 1600 V (cm) 57 Mass Spectrum 98 100F 80 60 4043 20 of base peak No significant UV absorption above 220 nm M-154 139 Co Higo 40 80 200 240 280 120 160 mle 13C NMR Spectrum (100.0 MH2, CDCI, solution) expansion DEPT CH CH. CH 28 27 ppm expansion solvent proton decoupled 27 pm 200 160 120 80 40 0 8 (ppm TH NMR...
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,...
Find the compounds using IR and NMR: Problem 25 2251 IR Spectrum (liquid film) 800 1600...
Find the compounds using IR and NMR:
Problem 25 2251 IR Spectrum (liquid film) 800 1600 1200 4000 3000 2000 v (cm) 100 Mass Spectrum M 117 80 77 60 91 40 20 CgH7N 200 80 120 160 240 280 40 m/e expansion 13C NMR Spectrum (100.0 MHz, CDCI, solution) 130 129 ppm DEPT CH Cн,! сн! expansion 130 129 ppm solvent proton decoupled (ppm) 40 200 160 120 80 H NMR Spectrum (400 MHz. CDCI, solution) TMS 10 7...
need help elucidating IR Spectrum 4000 3000 2000 V (cm 1500 1600 ) 1200 1200 800 UV Spectrum Mass Spectrum of base...
need help elucidating
IR Spectrum 4000 3000 2000 V (cm 1500 1600 ) 1200 1200 800 UV Spectrum Mass Spectrum of base peak 2 max 310 nm (og 3.3) 2 max 261 nm (10970€ 43) solvent methanol 199201 15515 184186 2. max 262 nm (09/0€ 3.0) 1. max 257 nm (1090€ 3.0) max 222 nm (log,o€ 4.0) 80 120 160 200 240 280 so m ethane/HGI m / 13C NMR Spectrum (500 M . CDCI, solution) DEPT CH CH. CH...
do the spec problem Problem 9 IR Spectrum (kuid im) 0.0 800 1600 1200 2000 V (cm) 3000 4000 Mass Spectrum 0.5F 100 8...
do the spec problem
Problem 9 IR Spectrum (kuid im) 0.0 800 1600 1200 2000 V (cm) 3000 4000 Mass Spectrum 0.5F 100 80 60 UV spectrum 1,0 77 107 5.815 mg/ 10 mls path length: 1.00 cm solvent: ethanel M 122 20E 1.5 300 350 250 200 200 280 240 120 160 40 80 (nm) m/e 13C NMR Spectrum Aath (20.0 MHz, CDCI, solution) expansion x5 off-resonance decoupled proton decoupled 200 160 120 80 8 (ppm) 40 0 1H...
Please label all spectra for C5H9O2Br Problem 2 IR Spectrum liquid film) 1740 4000 3000 2000...
Please label all spectra for
C5H9O2Br
Problem 2 IR Spectrum liquid film) 1740 4000 3000 2000 1600 V (cm) 1200 600 Mass Spectrum قليلالالالالالا % of base peak No significant UV absorption above 220 nm 107/109 152/154 M + 180/182 C5H,OBr 40 80 200 240 120 160 m/e 280 . 13C NMR Spectrum (50,0 MHz, CDCI, solution) DEPT CH CH CH4 proton decoupled solvent 200 160 120 80 OLII 40 08 (ppm) TH NMR Spectrum (300 MHz, CDCI, solution) expansion...
need help elucidating this please IR Spectrum Ker disc) 4000 3000 1600120080000 2000 v (cm ) Mass Spectrum 0.5 1.0F...
need help elucidating this please
IR Spectrum Ker disc) 4000 3000 1600120080000 2000 v (cm ) Mass Spectrum 0.5 1.0F Soft UV spectrum 1032 mg/10mis path length: 1.00 solvent: cyclohen 1.5... 350 40 80 200 240 280 160 /e 200 120 m 250 300 2. (nm) 13C NMR Spectrum (1000 MHZ. CDCI, solution) DEPT Chich cht proton decoupled 40 08 (ppm) 80 200 160 120 'H NMR Spectrum (400 MHz, CDCI, solution) 3 2 1 4 5 6 7 TO...
Fall 2019 Problem 5 IR Spectrum Doud 4000 1715 3000 2000 V (cm 1600 ) 1200...
Fall 2019 Problem 5 IR Spectrum Doud 4000 1715 3000 2000 V (cm 1600 ) 1200 800 Mass Spectrum of base peak CHOO 40 80 120 160 200 240 280 13C NMR Spectrum (20.0 MHE. COCI, solution H-C+ -CHE proton decoupled solvent 200 1601 160 80 08 (ppm) 'H NMR Spectrum 100 MH2 CDC, solution) expansion of 400 MHz spectrum 20 Hz 10 9 8 7 6 5 4 3 2 1 (ppm)
Fall 2019 Problem 5 IR Spectrum Doud 4000 1715 3000 2000 V (cm 1600 ) 1200...
Fall 2019 Problem 5 IR Spectrum Doud 4000 1715 3000 2000 V (cm 1600 ) 1200 800 Mass Spectrum of base peak CHOO 40 80 120 160 200 240 280 13C NMR Spectrum (20.0 MHE. COCI, solution H-C+ -CHE proton decoupled solvent 200 1601 160 80 08 (ppm) 'H NMR Spectrum 100 MH2 CDC, solution) expansion of 400 MHz spectrum 20 Hz 10 9 8 7 6 5 4 3 2 1 (ppm)
need help elucidating please
IR Spectrum (KBr disc) 4000 3000 2000 1600 1200 800 V (cm') UV Spectrum 100 Amax 310 nm log10 3.3) Mass Spectrum 80 mex 261 nm (log.oe 4.3) 120 60 solvent: methanol M 199/201 40 max 262 nm (log,0E 3.0) pa 257 nm (logE 3.0) Amax 222 nm 0og0 4.0) 155/157 20 184/186 40 280 80 200 240 120 160 solvent: methanol / HC m/e 13C NMR Spectrum (500 MHz, CDCI, solution) DEPT CH, CHt CH...
Identify Structure
Problem 121 ཀ་ IR Spectrum (KBr disc) 1728 4000 3000 1200 800 2000 1600 V (cm) 57 Mass Spectrum 98 100F 80 60 4043 20 of base peak No significant UV absorption above 220 nm M-154 139 Co Higo 40 80 200 240 280 120 160 mle 13C NMR Spectrum (100.0 MH2, CDCI, solution) expansion DEPT CH CH. CH 28 27 ppm expansion solvent proton decoupled 27 pm 200 160 120 80 40 0 8 (ppm TH NMR...
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,...
Find the compounds using IR and NMR:
Problem 25 2251 IR Spectrum (liquid film) 800 1600 1200 4000 3000 2000 v (cm) 100 Mass Spectrum M 117 80 77 60 91 40 20 CgH7N 200 80 120 160 240 280 40 m/e expansion 13C NMR Spectrum (100.0 MHz, CDCI, solution) 130 129 ppm DEPT CH Cн,! сн! expansion 130 129 ppm solvent proton decoupled (ppm) 40 200 160 120 80 H NMR Spectrum (400 MHz. CDCI, solution) TMS 10 7...
need help elucidating
IR Spectrum 4000 3000 2000 V (cm 1500 1600 ) 1200 1200 800 UV Spectrum Mass Spectrum of base peak 2 max 310 nm (og 3.3) 2 max 261 nm (10970€ 43) solvent methanol 199201 15515 184186 2. max 262 nm (09/0€ 3.0) 1. max 257 nm (1090€ 3.0) max 222 nm (log,o€ 4.0) 80 120 160 200 240 280 so m ethane/HGI m / 13C NMR Spectrum (500 M . CDCI, solution) DEPT CH CH. CH...
do the spec problem
Problem 9 IR Spectrum (kuid im) 0.0 800 1600 1200 2000 V (cm) 3000 4000 Mass Spectrum 0.5F 100 80 60 UV spectrum 1,0 77 107 5.815 mg/ 10 mls path length: 1.00 cm solvent: ethanel M 122 20E 1.5 300 350 250 200 200 280 240 120 160 40 80 (nm) m/e 13C NMR Spectrum Aath (20.0 MHz, CDCI, solution) expansion x5 off-resonance decoupled proton decoupled 200 160 120 80 8 (ppm) 40 0 1H...
Please label all spectra for
C5H9O2Br
Problem 2 IR Spectrum liquid film) 1740 4000 3000 2000 1600 V (cm) 1200 600 Mass Spectrum قليلالالالالالا % of base peak No significant UV absorption above 220 nm 107/109 152/154 M + 180/182 C5H,OBr 40 80 200 240 120 160 m/e 280 . 13C NMR Spectrum (50,0 MHz, CDCI, solution) DEPT CH CH CH4 proton decoupled solvent 200 160 120 80 OLII 40 08 (ppm) TH NMR Spectrum (300 MHz, CDCI, solution) expansion...
need help elucidating this please
IR Spectrum Ker disc) 4000 3000 1600120080000 2000 v (cm ) Mass Spectrum 0.5 1.0F Soft UV spectrum 1032 mg/10mis path length: 1.00 solvent: cyclohen 1.5... 350 40 80 200 240 280 160 /e 200 120 m 250 300 2. (nm) 13C NMR Spectrum (1000 MHZ. CDCI, solution) DEPT Chich cht proton decoupled 40 08 (ppm) 80 200 160 120 'H NMR Spectrum (400 MHz, CDCI, solution) 3 2 1 4 5 6 7 TO...
Fall 2019 Problem 5 IR Spectrum Doud 4000 1715 3000 2000 V (cm 1600 ) 1200 800 Mass Spectrum of base peak CHOO 40 80 120 160 200 240 280 13C NMR Spectrum (20.0 MHE. COCI, solution H-C+ -CHE proton decoupled solvent 200 1601 160 80 08 (ppm) 'H NMR Spectrum 100 MH2 CDC, solution) expansion of 400 MHz spectrum 20 Hz 10 9 8 7 6 5 4 3 2 1 (ppm)
Fall 2019 Problem 5 IR Spectrum Doud 4000 1715 3000 2000 V (cm 1600 ) 1200 800 Mass Spectrum of base peak CHOO 40 80 120 160 200 240 280 13C NMR Spectrum (20.0 MHE. COCI, solution H-C+ -CHE proton decoupled solvent 200 1601 160 80 08 (ppm) 'H NMR Spectrum 100 MH2 CDC, solution) expansion of 400 MHz spectrum 20 Hz 10 9 8 7 6 5 4 3 2 1 (ppm)
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