422 Problems in Organic Structure Analysis Problem 11.10 (continued) 'H- 'H COSY NMR in CDClh (500 MHz), e 8-4 2.8 3.8 1.8 1.4 14
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Use the following wave spectrum to identify the chemical structure Problem 11.10 60 40 Exact M.S. (CI) 129.1279 FT-...
Find the chemical structure using the wave spectrum shown Problem I1.3 40 Exact M.S. (E)- 84.0575 UVAmax-209 (E-16,0...
Find the chemical structure using the wave spectrum
shown
Problem I1.3 40 Exact M.S. (E)- 84.0575 UVAmax-209 (E-16,000) 328 (E-50) FT-IR (NEAT) 20 3000 2000 WAVENUMBERS (CM) 1800 1200 100 Mass Spec. El 70eV 40 20 50 40 44 55 70 m/z T 13C NMR 62.3 MHz COCla D D 192 11 190 CDCI Fwwwwluuluuluulnluulululul luulnluuluuluulun ad 0 ppm 0 HE 150 120 100 120 160 150 140 130 110 50 50 40 20 10 250 10 Ha/dw 250 MHz...
Find the chemical structure using the wave spectrum shown Problem 11.4 100 40 40 Exact M.9. (EI)-98.0732 FT-IR (NEAT...
Find the chemical structure using the wave spectrum
shown
Problem 11.4 100 40 40 Exact M.9. (EI)-98.0732 FT-IR (NEAT) 20 UVAmaxBLANK 4000 300 2000 WAVENUMBERS (C) s000 s00 100 42 Mass Spea. El 70eV 60 40 20 150 70 105 45 so m/z 13C NMR 62.3 MHz COCls ywwA 224 222 220 218 216 214 212 COCI uwwlu 20 120 60 30 0 ppm 160 130 110 100 90 80 50 40 10 180 170 150 140 3H 1H NMR...
Use the spectral data provided to determine the structure of the following organic conpounds. IR Spectrum...
Use the spectral data provided to determine the structure of
the following organic conpounds.
IR Spectrum ouid im) 3410 4000 3000 2000 1600 1200 V (om: 800 100 Mass Spectrum 43 80 60 M (15) 71 20 40 120 80 160 200 240 280 m/e 13C NMR Spectrum (50.0 M, COCI, solution) DEPT CHt CH,t CHt solvent proton decoupled 0 8 (ppm) 40 80 120 200 160 'H NMR Spectrum (200 MHz, CDCI, solution) expansion exchanges with Dy0 50 pom...
Use the spectra below to determine the molecular formula and chemical structure of the unknown compound....
Use the spectra below to determine the molecular formula and
chemical structure of the unknown compound.
MASS 142 % of Base Peak 1147 40 50 70 80 5 100 % Transmittance Jari- 3000 1000 4000 'H NMR 300 MERE 2000 Wavenumber (cm) 3.0 25 20 15 Ppm 4.0 3.5 C/DEPT NMR 75.5 MHz ppm 60 50 40 80 70 90 100 110 120 170 160 150 140 130 ppm 4.5 4.0 3.5 3.0 2.5 2.0 1.5 ppm COSY 300 MHz...
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...
What is the structure of this compound? MASS SPECTRUM 100 Relative Intensities m/z 103-100% m/z 197-190...
What is the structure of this compound?
MASS SPECTRUM 100 Relative Intensities m/z 103-100% m/z 197-190 m/z 198-less than 1% 80 60 40 20 197 0.0t l.1 0.0 40 80 120 160 200 m/z H NMR spectrum, CDCls, 600 MHz 3.75 3.703 3.60 34 3.3 Chemical Shft (ppm) 3.65 3.55 Chemical Shft (ppm) 70 4.65 4.60 Chemical Shift (ppm) 1.26 1.24 122 120 1.18 1.16 Chemical Shift (ppm) 4.8 4.6 4.4.2 4.0 3.8 3.6 34 3.2 3.0 2.826 24 22...
(a) From the spectral data ( H, C NMR, IR, MS) you were given, identify the...
(a) From the spectral data ( H, C NMR, IR, MS) you were given,
identify the structure of your product. Explain why you chose your
particular product based on the spectroscopic data.
(b) Fully assign the 1H NMR spectrum of your product (i.e.
determine which peaks in the 1H NMR correspond to which hydrogens
in the product). You will not receive full marks for determination
of the unknown unless you assign the 1H NMR spectrum
completely.
(c) Now work backwards...
Find the chemical structure using the wave spectrum
shown
Problem I1.3 40 Exact M.S. (E)- 84.0575 UVAmax-209 (E-16,000) 328 (E-50) FT-IR (NEAT) 20 3000 2000 WAVENUMBERS (CM) 1800 1200 100 Mass Spec. El 70eV 40 20 50 40 44 55 70 m/z T 13C NMR 62.3 MHz COCla D D 192 11 190 CDCI Fwwwwluuluuluulnluulululul luulnluuluuluulun ad 0 ppm 0 HE 150 120 100 120 160 150 140 130 110 50 50 40 20 10 250 10 Ha/dw 250 MHz...
Find the chemical structure using the wave spectrum
shown
Problem 11.4 100 40 40 Exact M.9. (EI)-98.0732 FT-IR (NEAT) 20 UVAmaxBLANK 4000 300 2000 WAVENUMBERS (C) s000 s00 100 42 Mass Spea. El 70eV 60 40 20 150 70 105 45 so m/z 13C NMR 62.3 MHz COCls ywwA 224 222 220 218 216 214 212 COCI uwwlu 20 120 60 30 0 ppm 160 130 110 100 90 80 50 40 10 180 170 150 140 3H 1H NMR...
Use the spectral data provided to determine the structure of
the following organic conpounds.
IR Spectrum ouid im) 3410 4000 3000 2000 1600 1200 V (om: 800 100 Mass Spectrum 43 80 60 M (15) 71 20 40 120 80 160 200 240 280 m/e 13C NMR Spectrum (50.0 M, COCI, solution) DEPT CHt CH,t CHt solvent proton decoupled 0 8 (ppm) 40 80 120 200 160 'H NMR Spectrum (200 MHz, CDCI, solution) expansion exchanges with Dy0 50 pom...
Use the spectra below to determine the molecular formula and
chemical structure of the unknown compound.
MASS 142 % of Base Peak 1147 40 50 70 80 5 100 % Transmittance Jari- 3000 1000 4000 'H NMR 300 MERE 2000 Wavenumber (cm) 3.0 25 20 15 Ppm 4.0 3.5 C/DEPT NMR 75.5 MHz ppm 60 50 40 80 70 90 100 110 120 170 160 150 140 130 ppm 4.5 4.0 3.5 3.0 2.5 2.0 1.5 ppm COSY 300 MHz...
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...
What is the structure of this compound?
MASS SPECTRUM 100 Relative Intensities m/z 103-100% m/z 197-190 m/z 198-less than 1% 80 60 40 20 197 0.0t l.1 0.0 40 80 120 160 200 m/z H NMR spectrum, CDCls, 600 MHz 3.75 3.703 3.60 34 3.3 Chemical Shft (ppm) 3.65 3.55 Chemical Shft (ppm) 70 4.65 4.60 Chemical Shift (ppm) 1.26 1.24 122 120 1.18 1.16 Chemical Shift (ppm) 4.8 4.6 4.4.2 4.0 3.8 3.6 34 3.2 3.0 2.826 24 22...
(a) From the spectral data ( H, C NMR, IR, MS) you were given,
identify the structure of your product. Explain why you chose your
particular product based on the spectroscopic data.
(b) Fully assign the 1H NMR spectrum of your product (i.e.
determine which peaks in the 1H NMR correspond to which hydrogens
in the product). You will not receive full marks for determination
of the unknown unless you assign the 1H NMR spectrum
completely.
(c) Now work backwards...
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