Chemical Instrumentation II Exam Review Problem 1. Use the NMR spectrum provided below to identify the...
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...
for the following 2 compounds, please calculate, and
show the calculations for, the degree of unsaturation, assign the
IR spectrum peaks, assign the 13C NMR peaks, assign the 1H NMR
peaks, and draw the structure for the unknown compound.
CHIM 245 Spectroscopy Problem Set #2 In this problem set there are two unknown compounds. You are provided with the formula, IR spectrum, "C NMR spectrum, and 'H NMR spectrum for each compound. Each unknown is worth 10 points, with an...
The following NMR spectrum was
obtained for a compound with the chemical formula C3H7Br. Propose a
reasonable structure for the compound. Identify all of the
resonances in the 1H NMR spectrum and explain your reasoning.
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yuLLIUI The IR and 'H-NMR spectrum of a compound with molecular formula 102 is provided below. What is its unsaturation number identify the key functional groups from the IR spectrum and explicitly state which stretches (with wavenumber) were used to identify them. Name or provide the condensed structure of a compound that will give rise to the above data (15 pts.) IR H-NMR-doublet - 79 ppm-2H, doublet - 7.3 ppm - 2H. quartet - 2.7 ppm - 2 triplet -1.2...
2. The H NMR spectrum of an unknown compound with the molecular formula CgH902 is provided below. The IR spectrum for this compound shows a large, broad peak at 3147 cm ? and a strong, sharp peak at 1645 cm-7. Provide a structure for this unknown. 2H 2H 10 98 HSP-06-318 ppm
A compound has the 'H NMR spectrum shown below. Identify the compound. 11 10 9 00 7 6 UI 4 3 2 1 O None of these compounds fit the spectrum that is shown here. CN O Me H A compound has the 'H NMR spectrum shown below. Identify the compound. 3H triplet 2H triplet 2H 11 10 9 00 7 0) 5 4 3 N 1 0 None of these compounds fit the spectrum that is shown here. A...
Compound 2: Use the information provided below and the IR and NMR spectra on the next page to answer the following questions. a) An MS was taken of compound 2 and the table is given below. Determine the molecular formula of 2 from the MS given below relative abundance m/z 132 100 133 9.8 b) Calculate the Index of Hydrogen Deficiency/Degree of Unsaturation for the molecule. c) Using the IR spectrum and the 1H- and 13C-NMR spectra given below, determine...
E7postlab4 Homework. Unanswered AIH NMR spectrum for unknown compound C7H1402 is provided below. Click on the ester that it corresponds to. CH,402 sich gergh toy ppm Undo Delete selected Remove All O Targets placed: 0/2 You can place up to 2 targets
A compound has the 1H NMR spectrum shown below. Identify the
compound.
A compound has the 1H NMR spectrum shown below, Identify the compound 10 9 87654 3210 MeO None of these compounds is consistent with the spectrum that is shown here. HO
The NMR spectrum of the aromatic section of a compound is presented in figure 1. 3. 78 7.7 74 7.5 74 73 7.2 7.1 70 7 64 3 62 ppm Figure 1: NMR spectrum of unknown. 6: 6.25 (d, J-3Hz ) , 6.38 (dd, J-8Hz , J-3Hz), 7.75 (d, J- 8Hz). acquire the NMR spectrum Determine which compound (A, B or C) was used to a. presented in figure 1 (1 mark). R Re H H. H. Ra HT HT...