Homework Answers
The abs. band at near 1740 cm-1 due to ester.
It is aliphatic ester corresponds to C6H12O2.
The mol. ion at m/z 116 , corresponds to C6H12O2.
The ions at m/z 73 due Iso butyloxy group, and m/z 56 and 43 due to removal of -OH and iso propyl group.
In given 1H-nmr, the peak at del 3.85 as a doublet due to -OCH2-CH and peak at del 1.92 as a multiplet due to CH of iso propyl group and peak at del 2.1 as a singlet due to CH3CO.
Hence it is isobutyl acetate.
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solve for the unknown molecular structure.
#2 IR Spectrum iquid m 1740 2000 v (em) 800...
Fall 2019 Problem 5 IR Spectrum (iquid fim) 1715 4000 3000 2000 V (cm) 1600 1200...
Fall 2019 Problem 5 IR Spectrum (iquid fim) 1715 4000 3000 2000 V (cm) 1600 1200 800 100 44 Mass Spectrum 80 60 58 20 M. 86 C5H100 280 40 240 80 200 120 160 13C NMR Spectrum (20.0 MHz, CDCI, solution) -CH3 C-H proton decoupled TMS CH solvent ul 5 (ppm) 40 80 120 160 200 H NMR Spectrum (100 MHz, CDC, solution) expansion of 400 MHz spectrum 20 Hz TMS 0.99 ppm 2.21 2.31 9.75 2 3 6...
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)
Identify the structure Problem 120 mm IR Spectrum liquid film) 1734 4000 3000 2000 1200 800...
Identify the structure
Problem 120 mm IR Spectrum liquid film) 1734 4000 3000 2000 1200 800 1600 V (cm) 100 Mass Spectrum M 128 80 60 40F wodowe No significant UV absorption above 220 mm 83 100 113 C-H1202 40 80 120 200 240 280 160 m/e 13C NMR Spectrum (100.0 MHZ. CDCI, solution) DEPT Chat Chat Cht W proton decoupled 200 160 120 80 40 O 8 (ppm) H NMR Spectrum (400 MHE, COCI, solution) expansions oppm 1936 ppi...
Find the structure IR Spectrum quid 4000 3000 2000 V (cm 1600 ) 1200 800 0.0...
Find the structure
IR Spectrum quid 4000 3000 2000 V (cm 1600 ) 1200 800 0.0 Mass Spectrum 0.5t of base peak UV spectrum 1.075 mg/10ms path length: 0.10 cm solvent: ethanol CH100 280 1.5 40 80 120 160 m/e 200 240 200 250 cm 300 13C NMR Spectrum (1250 MHZ COCI, solution) DEPT CH CH CH! proton decoupled 200160120 80 40 08 (ppm) TH NMR Spectrum (600 MHz, CDCI, solution) expansions expansion pom 10 9 8 7 6 5...
V (em) 100 Mass Spectrum No significant UV absorption above 210 nm 40E 8 C3H6 O2 40 80 120 160 20...
determine the compound structure based on the
spectrums.
V (em) 100 Mass Spectrum No significant UV absorption above 210 nm 40E 8 C3H6 O2 40 80 120 160 200 240 280 m/e 13C NMR Spectrum (500 Mrz. Coci, solution) protion coupled proton decoupled 200 80 40 0 δ(ppm) 160 120 H NMR Spectrum (100 MHz, CDC, soluton) TMS expansion 4x 10 9 8 6 5 4 3 2 1 0 6 (ppm)
V (em) 100 Mass Spectrum No significant UV...
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,...
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...
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)
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...
Fall 2019 Problem 3 IR Spectrum (CHC solution) 1350 1170 4000 3000 800 2000 v (cm)...
Fall 2019 Problem 3 IR Spectrum (CHC solution) 1350 1170 4000 3000 800 2000 v (cm) 1600 1200 100 Mass Spectrum 91 80 M 200 60 155 40 172 20 Cg H1203S 240 280 200 120 m/e 160 80 40 13C NMR Spectrum (20.0 MHz, CDCI, solution) C-H C-H H-GH -CH -CH solvent TMS proton decoupled 0 8(ppm) 40 80 120 160 200 H NMR Spectrum (100 MHz. CDCI, solution) TMS 1 8 (ppm) 6 7 8 yeed % of...
Fall 2019 Problem 5 IR Spectrum (iquid fim) 1715 4000 3000 2000 V (cm) 1600 1200 800 100 44 Mass Spectrum 80 60 58 20 M. 86 C5H100 280 40 240 80 200 120 160 13C NMR Spectrum (20.0 MHz, CDCI, solution) -CH3 C-H proton decoupled TMS CH solvent ul 5 (ppm) 40 80 120 160 200 H NMR Spectrum (100 MHz, CDC, solution) expansion of 400 MHz spectrum 20 Hz TMS 0.99 ppm 2.21 2.31 9.75 2 3 6...
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)
Identify the structure
Problem 120 mm IR Spectrum liquid film) 1734 4000 3000 2000 1200 800 1600 V (cm) 100 Mass Spectrum M 128 80 60 40F wodowe No significant UV absorption above 220 mm 83 100 113 C-H1202 40 80 120 200 240 280 160 m/e 13C NMR Spectrum (100.0 MHZ. CDCI, solution) DEPT Chat Chat Cht W proton decoupled 200 160 120 80 40 O 8 (ppm) H NMR Spectrum (400 MHE, COCI, solution) expansions oppm 1936 ppi...
Find the structure
IR Spectrum quid 4000 3000 2000 V (cm 1600 ) 1200 800 0.0 Mass Spectrum 0.5t of base peak UV spectrum 1.075 mg/10ms path length: 0.10 cm solvent: ethanol CH100 280 1.5 40 80 120 160 m/e 200 240 200 250 cm 300 13C NMR Spectrum (1250 MHZ COCI, solution) DEPT CH CH CH! proton decoupled 200160120 80 40 08 (ppm) TH NMR Spectrum (600 MHz, CDCI, solution) expansions expansion pom 10 9 8 7 6 5...
determine the compound structure based on the
spectrums.
V (em) 100 Mass Spectrum No significant UV absorption above 210 nm 40E 8 C3H6 O2 40 80 120 160 200 240 280 m/e 13C NMR Spectrum (500 Mrz. Coci, solution) protion coupled proton decoupled 200 80 40 0 δ(ppm) 160 120 H NMR Spectrum (100 MHz, CDC, soluton) TMS expansion 4x 10 9 8 6 5 4 3 2 1 0 6 (ppm)
V (em) 100 Mass Spectrum No significant UV...
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,...
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...
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)
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...
Fall 2019 Problem 3 IR Spectrum (CHC solution) 1350 1170 4000 3000 800 2000 v (cm) 1600 1200 100 Mass Spectrum 91 80 M 200 60 155 40 172 20 Cg H1203S 240 280 200 120 m/e 160 80 40 13C NMR Spectrum (20.0 MHz, CDCI, solution) C-H C-H H-GH -CH -CH solvent TMS proton decoupled 0 8(ppm) 40 80 120 160 200 H NMR Spectrum (100 MHz. CDCI, solution) TMS 1 8 (ppm) 6 7 8 yeed % of...
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