Extra Credits (5 points) Propose a possible structure for a compound with molecular formula C-H12O2 that...
8) Propose a structure for the following compound based on its molecular formula (C4H2O2) and its IR spectrum 25 2.6 2.7 2.8 2.9 3.5 4 45 9 10 11 12 13 14 15 16 4000 3800 36000 3400 3200 3000 2800 2600 2400 2200 2000 1400 1200 1000 1800 1600 Wavenumber(cm) 9) Propose a structure for the following compound based on its molecular formula (C6H120) and its IR spectrum wavelength (um) 25 26 2.7 2.8 2. 9 3 5 4...
4. Answer the following questions. a. A cyclic compound with molecular formula CsHsO, shows absorptions at 1720 cm-1 and at 2980 cm / on the IR spectrum. Propose a possible structure for this compound. b. A compound with molecular formula CH,N shows two significant bands in the 3300-3500 cm., and another at 2950 cmon the IR spectrum. Propose a possible structure for this compound.
Propose a structure for a compound of molecular formula C_7 H_14 O_2 with an IR absorption at 1740 cm^-1 and the following^1 H NMR data:
Propose a structure for a compound whose(M)" is 86 and (M-1)", is 5% of the molecular ion. Its ir shows an absorption at 1720 cm1 and its 'H NMR displays δ 1.1 (d, 6H), δ 2.1 (s, 3 H), and δ 2.7 (septet/heptet, 1H). Propose a structure for a compound whose(M)" is 86 and (M-1)", is 5% of the molecular ion. Its ir shows an absorption at 1720 cm1 and its 'H NMR displays δ 1.1 (d, 6H), δ 2.1...
please answer soon (5). Propose a structure for the compound with molecular formula CsH40 using the proton NMR and IR data. Show all assignments and explain how you arrive at the proposed structure. 8 1.60 3HS IR 1720 cm 81.65 3H, s 8 2.10 3H, $ 82.25 2H,_t 82.42 2Ht 65.10 1 . t 20 points per question
Determine the structure of the compound with a molecular formula, C7H14N2, and the spectroscopy data: EA MW (g/mol) C, 66.62, H, 11.18, N, 22.20 126.20 C NMR (ppm) 140.3, 49.0, 24.7 IR (cm-1) 2116 (strong - more intense than the C-H stretches between 2800 and 3100), no other peaks between 1500 and 4000 H NMR spectrum: 11 109654 32 1 0 ppm
19. A compound with a molecular formula C Hascio, has the following 'H NMR spectrum. The IR spectrum shows strong absorption at 1800 cm. Which of the following structures is consistent with this spectrum? quartet triplet triplet quartet triplet 20. Which of the following compounds is consistent with the C NMR spectrum shown below? 3 signals PPM CHO / a) OH b) OH d) OH
2. Draw the structure of the compound with molecular formula C H1N exhibiting a triplet at 8 0.9 (6H), a singlet at 8 1.1 (1H), a sextet at 01.3 (4H), a quintet at 8 1.4 (4H) and a triplet at 8 2.6 (4H) in its 'H NMR spectrum. Its IR spectrum shows a medium absorption band near 3400 cm' and its 13C NMR spectrum showed peaks at 13.7, 20.5, 30.4 and 49.2. (2 pts.) 3. Synthesize the following by showing...
An unknown compound A has an empirical formula of c3h6o and a molecular ion peak in its mass spectrum at m/z 116. It also has no IR absorption at 3200-3600cm^-1 but shows a peak at 1740cm^-1. The H NMR spectra data of A is given below in table format. Use this information to answer questions a-d below. 9 (15 Points). An unknown compound A has empiricl rmula of C,HO and a molecular ion peak in its mass spectrum at an...
3. From the NMR spectrum below, determine the structure of the compound. The molecular formula is C4H7BrO2 . There are no 1H NMR signals outside of the region shown. 3. (5 points) From the NMR spectrum below, determine the structure of the compound. The molecular formula is C4H-BrO2. There are no 'H NMR signals outside of the region shown.