H3C 3 H CH3 H OH H CHCH3↑ CHav ↓ non C-2,C-6 Chonly 200 not present CHCHICH 150 140 130 C-3,C-5 1 →C-4 100 100 50 C-GC-8 20 0 USER: -- DATE: 02/10/25 (23
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The molecule is 4-methyl-2-methylphenol. The spectrum shows peaks corresponding to different carbon atoms in the molecule. The peaks are labeled with the corresponding carbon atoms. C-3, C-5: These carbons are equivalent due to symmetry and are expected to have Show more…
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Note: The proton NMR data (including the relative integration) are as follows: the doublet at 7.83 ppm (1H), the overlapping series peaks from 7.20-7.63 ppm (3H), the quartet at 2.90 ppm (2H), and the triplet at 1.27 ppm (3H).
Madhur L.
Problem 4 IR Spectrum (CCl4 solution) 1744 4000 3000 2000 1600 1200 800 ν (cm^-1) Mass Spectrum 29 57 M*+ = 88 C4H8O2 No significant UV absorption above 220 nm 13C NMR Spectrum (100.0 MHz, CDCl3 solution) DEPT CH2 ↓ CH3 ↑ CH ↑ proton decoupled solvent 200 160 120 80 40 0 δ (ppm) 1H NMR Spectrum (200 MHz, CDCl3 solution) expansion 2.0 1.0 ppm TMS 10 9 8 7 6 5 4 3 2 1 0 δ (ppm)
George B.
2a) C12H16O - Peak information: 7.2 ppm = multiplet; 3.6 ppm = singlet; 2.3 ppm = doublet; 2.15 ppm = nonet; 0.95 ppm = doublet HDI = (2(12)+2-16)/2 = 5
Adi S.
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