
For the foowing 1H NMR spectra, choose the correct structure. d, 6H 3H, m 11. septet...
Draw the structure that would be responsible or the following
spectra:
5. CH.0;septet (1H), singlet (3H), doublet (6H) 11 10 8 7 6 4 3 2 1 0 5 ppm 6. C1H1402, multiplet (5H), singlet (2H), triplet (2H), multiplet (2H), triplet (3H) E 11 10 9 2 ppm
H NMR: 7.0d (4H, broad singlet); 2.85 o (1H, septet); 2.28 (3H, singlet); 1.20 0(6H doublet) R: 825 cm What is the structure of a hydrocarbon that shows a molecular ion at m/z- 182 in the mass spectrum and has the following 1H NMR spectrum? 7.20, singlet, 5H- 2.9 d, singlet, 2H
H NMR: 7.0d (4H, broad singlet); 2.85 o (1H, septet); 2.28 (3H, singlet); 1.20 0(6H doublet) R: 825 cm What is the structure of a hydrocarbon that shows...
Give the structure that corresponds to the following molecular formula and NMR spectra: C6H14O 1H NMR: ? 0.91 (6H, d, J = 7 Hz); ? 1.17 (6H, s); ? 1.48 (1H, s; disappears after D2O shake); ? 1.65 (1H, septet, J = 7 Hz). 13C NMR: ? 17.6, ? 26.5, ? 38.7, ? 73.2.
1H NMR 6. Propose a structure for the compound CzH.O with the following 'H NMR spectral data. 2H 1H 3H 1110 H ppm 7. Propose a structure for the compound C2H60, with the following 'H NMR spectral data. (Note this is the same molecular formula as the previous question) ppm 8. Propose a structure for the compound C,He with the following 'H NMR spectral data. SH2H 1H ppm 9. Propose a structure for the compound CxHyN with the following 'H...
Using the following spectra, draw a possible structure for C5H11 NO2. 6H, d 1H,d 2H, S 1H, s 1H,m 12 10 8 6 2 0 PPM 180 160 140 120 80 60 40 20 100 PPM 0
s) Using the following spectra, draw a possible structure for C5H11 NO2. 6H, d 1H,d 2H, S 1H, S 1H,m 12 10 8 6 4 2 0 PPM 180 160 140 120 80 60 100 PPM 40 20 0
Match the hydrogens in the structure below to each signal in the NMR spectrum H1 H5 H4 tra -H3 6H E 6H, singlet B 3H, singlet D 2H, singlet с 1H, septet F. 6H, doublet A 4H, mult 8 7 6 5 3 2 1 0 4 PPM
Propose a structure for the compound that has the following
spectra: NMR: ? 1.28 (3H, t, J = 7 Hz); ? 3.91 (2H, q, J = 7 Hz); ?
5.0 (1H, d, J = 4 Hz); ? 6.49 (1H, d, J = 4 Hz) ppm IR: 3100, 1644
(strong), 1104, 1166, 694 cm -1 (strong) no IR absorptions in the
range 700-1100 cm -1 or above 3100 cm-1 Mass spectrum: m/z = 152,
150 (equal intensity; double molecular ion)
11. Propose a structure for the compound Ca He O2, with the following 'H NMR spectral data. 1H 4H 3H 12.Propose a structure for the compound C.He with the following 'H NMR spectral data. 2H 6H
*H NMR for: C9H100 3H 2H -1H 1 0 11 109 8 7 6 5 3 2 ppm Pick the structure that best fits the proton NMR spectrum shown above. OH H OH Et D E