Homework Answers
IR analysis
absence of strong peaks in around 1600-1700 cm-1 suggest that >C=O group is absent. However a weak signal around 1600 cm-1 indicates presence of C=C bond . Peaks in region 3000cm-1 suggests =C-H group in molecule.
1NMR analysis
two doublets in aromatic region (7 pm) suggests that compound has a para disubstitution. signals at 6 ppm suggests olefinic protons connected to benzene.
Signal at 3.8 ppm (singlet) suggest -OCH3 group is present.
Signal at 2 ppm (doublet) suggest =CH(CH3) type group is present.
13 CNMR analysis
peaks in aromatic region and aliphatic region also supports analysis by 1HNMR. Total 7 type of carbon present in molecule.
putting this all information the suggested structure is
(E)-1-methoxy-4-(prop-1-en-1-yl)benzene
Trans geometry: Trans coupling (range :11 to 19 Hz) is greater than cis coupling. here 15.8 Hz
please see nmr assignments
(Note: Here reference data has been used kindly replace with your experimental data)
Mass analysis
Add Answer to:
Please help me figure out this structure. If you can, could you
include the justifications for...
1. Use the 'H NMR, 13C NMR, mass spectrometry and IR dat of a compound to...
1. Use the 'H NMR, 13C NMR, mass spectrometry and IR dat of a compound to determine its structure. IR Spectrum Mass Spectrometry Data relative abund 77 105 117 133 147 148 100 1H NMR Data 2H 24 ) H !! 13C NMR Data There are two unresolved lines between 130 and 131 ppa. TTTTTTTT 160 140 120 100 80 60 20 PPM 0 DEPT 135: positive: 18.4, 55.1, 113.9, 123.3, 126.9, 130.5 ppm DEPT 90: 113.9, 123.3, 126.9, 130.5...
help me with the structure please i can't find the right structure. please help IR Spectrum...
help me with the structure please
i can't find the right structure. please help
IR Spectrum ad 4000 2000 1800 1200 800 Mass Spectrum CHO 280 40 60 120 160 200 240 mle 13C NMR Spectrum (50.0 MH2 CDC, son WA DEPT CH CH. CH proton decoupled 200 16012080 400 (ppm) 'H NMR Spectrum (200 M CDO, O 10 9 8 7 6 5 4 3 2 6 (ppm) IR Spectrum udim 4000 3000 2000 1800 1200 300 Mass Spectrum...
IR Spectra help, question up top Use IR. proton NMR and MS data to deduce the...
IR Spectra help, question up top
Use IR. proton NMR and MS data to deduce the correct structure Draw the structure and dide it. Indicate on the IR, NMR and MS spectra the information you got from each to deduce the structure. Problem 20 IR Spectrum 4000 3000 2000 1800 12000 00 8 Mass Spectrum 8 8 No significant UV absorption above 220 nm 8 8 CgH NO 240 280 40 80 120 180 200 13C NMR Spectrum (1000 MHE....
Label the spectra and propose a structure for the compound. Compound 6 1 1755 IR Spectrum...
Label the spectra and propose a structure for the compound.
Compound 6 1 1755 IR Spectrum quid fim 1120 4000 3000 2000 V (cm 16001200800 ) Mass Spectrum So base peak M" 158 (<1%) No significant UV absorption above 220 nm C₂ H₂ 403 280 40 80 120 160 200 240 13C NMR Spectrum 150.0 MHz, CDCI, solution) DEPT Chut Chitch! proton decoupled 200 160 120 80 40 0 8 (ppm) TH NMR Spectrum 2200 MHZ. CDC, solution) 150 10...
Q-2……………..By identifing the sprectra provide the information about the structure , Please provide the structure of...
Q-2……………..By
identifing the sprectra provide the information about the structure
, Please provide the structure of the compound. Justification (i.e.
shifts, multiplicities, peaks etc.) for your structure should be
given.
13C NMR Spectrum (100.0 MHz, CDCI, solution) DEPT CH CH. CH 3395 solvent proton decoupled IR Spectrum liquid film) 1093 LLLLLLLLLLLL 20016012080 400 g (ppm) 4000 3000 2000 V (cm 800 1600 ) 1200 expansion expansions TH NMR Spectrum (400 MHz, CDCI, solution) 91 107 Mass Spectrum expansion 5.14 5.10...
Please help me annotate the following spectra. "roblem 4 3396 3334 IR Spectrum 1662 4000 3000...
Please help me annotate the
following spectra.
"roblem 4 3396 3334 IR Spectrum 1662 4000 3000 1200 800 2000 v (cm 1600 ) 120 Mass Spectrum Provide the structure for the problem in the space provided % of base peak M+ 135 Cg H, NO 40 80 120 160 m/e 200 240 280 Students are to ignore marked solvents and water in NMR spectra. 13C NMR Spectrum (100 Mz, DMSO-d6 solution) DEPT CHA CHA CHA solvent proton decoupled 200 160...
Identify the unknown compound structure using the spectra information given. Thank you! IR Data 100 Mass...
Identify the unknown compound structure using the
spectra information given. Thank you!
IR Data 100 Mass Spectrometry Data Molecular lon: 104amu Mass Spec. Data relative m/z abund. 9 27 27 8 59 100 TRANSMITTANCE 958.BL 875.79 773.55 SLOTT 2828.27 - SE LLET €6"EITT 10 et te 'TSET 2000 BOG 3000 25.00 HAVENUMBERS 2009 1500 1H NMR Data TTTTTTT "5. 62.5 2.5 1.5 1.6 PM 0.5 3.5 3.0 25 2.0 TTTTT 1.0 PPM 0.5 4.0 3.5 3.0 2.5 2.0 1.0 PPM...
URGENT! Can some one please help me identifly this Unknow spectrometry and Calculate DOU and calculate...
URGENT! Can some one please help me identifly this Unknow
spectrometry and Calculate DOU and calculate DOU?
Information: Each spectra below was obtained from a pure compound Mass Spectrum parent peaks (M) are listed for all examples. IR peaks listed are strong (s) unless otherwise indicated for signals above 1500 cm H NMR Spectra, the integral is given in number of hydrogens #H or as a relative ratio portant coupling constants -alue are list ed net the peaks for some...
Label the spectra and propose a structure for the compound. Compound IR Spectrum Olquid fim 1740...
Label the spectra and propose a structure for the
compound.
Compound IR Spectrum Olquid fim 1740 4000 3000 2000 1800 1200 800 100 Mass Spectrum yood M = 150/152 (15) CH40, CI 240 280 40 80 120 160 mle 200 13C NMR Spectrum (500 MG, COO, solo DEPT CH CH.CH selvon proton decoupled 200 160 120 80 40 0 (ppm) 'H NMR Spectrum (200 ML. COCI, solution) 10 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)
1. Use the 'H NMR, 13C NMR, mass spectrometry and IR dat of a compound to determine its structure. IR Spectrum Mass Spectrometry Data relative abund 77 105 117 133 147 148 100 1H NMR Data 2H 24 ) H !! 13C NMR Data There are two unresolved lines between 130 and 131 ppa. TTTTTTTT 160 140 120 100 80 60 20 PPM 0 DEPT 135: positive: 18.4, 55.1, 113.9, 123.3, 126.9, 130.5 ppm DEPT 90: 113.9, 123.3, 126.9, 130.5...
help me with the structure please
i can't find the right structure. please help
IR Spectrum ad 4000 2000 1800 1200 800 Mass Spectrum CHO 280 40 60 120 160 200 240 mle 13C NMR Spectrum (50.0 MH2 CDC, son WA DEPT CH CH. CH proton decoupled 200 16012080 400 (ppm) 'H NMR Spectrum (200 M CDO, O 10 9 8 7 6 5 4 3 2 6 (ppm) IR Spectrum udim 4000 3000 2000 1800 1200 300 Mass Spectrum...
IR Spectra help, question up top
Use IR. proton NMR and MS data to deduce the correct structure Draw the structure and dide it. Indicate on the IR, NMR and MS spectra the information you got from each to deduce the structure. Problem 20 IR Spectrum 4000 3000 2000 1800 12000 00 8 Mass Spectrum 8 8 No significant UV absorption above 220 nm 8 8 CgH NO 240 280 40 80 120 180 200 13C NMR Spectrum (1000 MHE....
Label the spectra and propose a structure for the compound.
Compound 6 1 1755 IR Spectrum quid fim 1120 4000 3000 2000 V (cm 16001200800 ) Mass Spectrum So base peak M" 158 (<1%) No significant UV absorption above 220 nm C₂ H₂ 403 280 40 80 120 160 200 240 13C NMR Spectrum 150.0 MHz, CDCI, solution) DEPT Chut Chitch! proton decoupled 200 160 120 80 40 0 8 (ppm) TH NMR Spectrum 2200 MHZ. CDC, solution) 150 10...
Q-2……………..By
identifing the sprectra provide the information about the structure
, Please provide the structure of the compound. Justification (i.e.
shifts, multiplicities, peaks etc.) for your structure should be
given.
13C NMR Spectrum (100.0 MHz, CDCI, solution) DEPT CH CH. CH 3395 solvent proton decoupled IR Spectrum liquid film) 1093 LLLLLLLLLLLL 20016012080 400 g (ppm) 4000 3000 2000 V (cm 800 1600 ) 1200 expansion expansions TH NMR Spectrum (400 MHz, CDCI, solution) 91 107 Mass Spectrum expansion 5.14 5.10...
Please help me annotate the
following spectra.
"roblem 4 3396 3334 IR Spectrum 1662 4000 3000 1200 800 2000 v (cm 1600 ) 120 Mass Spectrum Provide the structure for the problem in the space provided % of base peak M+ 135 Cg H, NO 40 80 120 160 m/e 200 240 280 Students are to ignore marked solvents and water in NMR spectra. 13C NMR Spectrum (100 Mz, DMSO-d6 solution) DEPT CHA CHA CHA solvent proton decoupled 200 160...
Identify the unknown compound structure using the
spectra information given. Thank you!
IR Data 100 Mass Spectrometry Data Molecular lon: 104amu Mass Spec. Data relative m/z abund. 9 27 27 8 59 100 TRANSMITTANCE 958.BL 875.79 773.55 SLOTT 2828.27 - SE LLET €6"EITT 10 et te 'TSET 2000 BOG 3000 25.00 HAVENUMBERS 2009 1500 1H NMR Data TTTTTTT "5. 62.5 2.5 1.5 1.6 PM 0.5 3.5 3.0 25 2.0 TTTTT 1.0 PPM 0.5 4.0 3.5 3.0 2.5 2.0 1.0 PPM...
URGENT! Can some one please help me identifly this Unknow
spectrometry and Calculate DOU and calculate DOU?
Information: Each spectra below was obtained from a pure compound Mass Spectrum parent peaks (M) are listed for all examples. IR peaks listed are strong (s) unless otherwise indicated for signals above 1500 cm H NMR Spectra, the integral is given in number of hydrogens #H or as a relative ratio portant coupling constants -alue are list ed net the peaks for some...
Label the spectra and propose a structure for the
compound.
Compound IR Spectrum Olquid fim 1740 4000 3000 2000 1800 1200 800 100 Mass Spectrum yood M = 150/152 (15) CH40, CI 240 280 40 80 120 160 mle 200 13C NMR Spectrum (500 MG, COO, solo DEPT CH CH.CH selvon proton decoupled 200 160 120 80 40 0 (ppm) 'H NMR Spectrum (200 ML. COCI, solution) 10 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)
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