Shown are 4 isomeric structures with the formula C_4H_10O. Which isomer shows a singlet with 3...
Set #1: OH CH3CH2CH2CCH3 CH3CH2CCH2CH3 CH3CH2CH2CH2CH Shown are 4 isomeric structures with the formula C H1,0 Which isomer shows 3 peaks in its "C-NMR spectrum, none of which is very far downfield? Set #2: H2C-CH2 H2C-CH2 CH3CH=CHCH3 CH2=CHCH2CH3 CH2=C(CH3)2 Shown are 4 isomeric structures with the formula CH Which isomer will show 2 signals in its "C-NMR spectrum?
Propose structures that fit the following formula and NMR data. (a) C3H100 singlet at 2.10 8 (3H) doublet at 0.958 (6H) multiplet at 2.43 8 (1H) (b) C10H14 singlet at 1.30 8 (9 H) singlet (broad) at 7.308 (5H) (c) C9H11Br quintet at 2.15 8 (2H) triplet at 2.758 (2H) triplet at 3.38 8 (2H) singlet at 7.22 8 (51) IR spectrum: strong peak near 1720 cm (d) C18H14 O2 Singlet at 2.20 8 (3H) Singlet at 5.08 8 (1H)...
4. (4 points) Which of the structures shown below is consistent with its H-NMR spectrum? (formula = C9H110Br) 1 = multiplet 2 = multiplet 3 multiplet 4 triplet 5 - triplet 6 = quintet 11 TTTTTTTTTTT 10 9 8 7 6 5 3 2 ppm
4. (4 points) Which of the structures shown below is consistent with its H-NMR spectrum? (formula = C9H11OBr) 1 = multiplet 2 = multiplet 3 = multiplet 4 = triplet 5 = triplet 6 = quintet 11 10 9 8 7 s 4 3 į i o ppm
5. Shown are the structures of two isomeric esters. The 1H NMR of each ester has been provided. a) Match each compound to the correct 1H NMR spectrum below. b) Assign the protons in each structure to the appropriate signal in the corresponding spectrum. 65 PPM
A compound of formula C7H8O shows H NMR signals at 2.3 (singlet 1H ) , 4.6 (singlet 2 H ) and 7.3 ( singlet , 5 H) . The infrared spectrum shows a strong , broad absorption between 3200 and 3500 and strong narrow absorbance at 3065 , 2875 and 1030 cm-1. Write the structure of the compound and provide and acceptable name .
Compound A has molecular formula C5H8Br4 but shows only one singlet in the 1H-NMR spectrum. Suggest a structure for A and explain your reasoning.
Give the structure that corresponds to the following molecular formula and 1H NMR spectrum: C7H12Cl2 : δ 1.07 (9H, singlet): δ 1.83 (2H, doublet); δ 5.77 (1H, triplet).Draw the structure of the compound that is consistent with the 1H NMR data below. Do not draw any hydrogens in your solution. It must be drawn as a true skeletal structure.
A compound with the molecular formula C6H15N exhibits a
singlet at d 0.9 (1H),
A triplet at d 1.10 (3H),
A singlet at d 1.15 (9H),
& quartet at d 2.6 (2H)
In its 1HNMR spectrum. It’s Ir spectrum shows one medium
absorption band near 3400 cm^-1.
What is the structure of this compound?
NH 1
The H-NMR spectrum of an unknown compound (formula CaHgO2) is shown below. Draw the structure of the unknown compound. Question 5 4 1 6 5 8 10 11 Ppm The 13C-NMR spectrum of an unknown compound (formula CgH180) is shown below. Its 1H-NMR spectrum only shows one singlet at 1.2 ppm. Draw the structure of this unknown compound. uestion 2 220 200 160 140 120 PPM 100 80 240 180 60 40 20 Create OscerSketch Answer 2 What would be...