
9. Use the NMR data and chemical formula to determine the structure of the molecule. a) Formula: C5H100 TH NMR 13C...
Bellow is the 13C NMR spectra including the integrations of the
compound. Show the structure of each (remember from the integration
that S singlet, d doublet, t triplet …. So on)
Draw the compound structure for each spectrum and show every
line belong to which carbon in the molecule
Example:
Problem (3) molecular formula is: C6H8O
(cyclic compound)
H O CDClj 100 80 60 40 20 160 140 120 220 200 180 PPM (8)
Construct a 13C NMR data table for the structure shown. Identify
the chemical shifts, and the type of splitting that you\'d expect
were a \"coupled\" carbon-NMR to be acquired.
Construct a 13C NMR data table for the structure shown. Identify the chemical shifts, and the type of splitting that you'd expect were a "coupled" carbon-NMR to be acquired. CH3)2CHCH, CH = CHCH,OCH3 0-50 50-100 100-160 160-220 singlet doublet triplet quartet Chem. Shift Splitting
13C NMR 1. Propose a structure for the compound CsH12, with the following 13C NMR spectral data. 160 140 120 80 60 40 20 0 200 180 CDS-00-748 100 ppm 2. Propose a structure for the compound CaH;Br, with the following C NMR spectral data. 200 180 160 140 120 80 60 40 100 ppm 20 0 3. Propose a structure for the compound C H2O2, with the following "'C NMR spectral data. 200 180 160 140 120 30600 T...
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...
14. (3 pts) The following molecule has a molecular formula of CaHsN3O.. Determine the index of hydrogen deficiency (IHD) for the compound. Using the molecular formula, IHD, IR, TH NMR, and 13C NMR, determine the structure for the compound. Hint: this molecule is part of the practical (product, reagent, solvent, etc). IR: 44 100 TH NMR 13C NMR: TH NMR: 13C NMR: 200 160 140 120 180 100 80 60 40 0 20 16 12 10 porn -- ppm IHD...
1. What is the chemical formula of the unknown?
2. what is the mass of the unknown?
3. What is the HDI?
4. According to IR spectra, what functional groups are
present?
5. What is the structure of the molecule?
138 PRACTICAL SPECTROSCOPY Compound 80 is a liquid (boiling point 212 C), that can be prepared by the reaction of Compound 79 with acidic, anhydrous ethanol. The Mass, IR, and 'H NMR spectra, along with C NMR data, are given...
Create OscerSkotch Answer 6 Th e 1H-NMR and 13C-NMR spectra of an unknown compound s (formula CoMzo) are shown below. Draw the structure of B. The total integration of the peaks at around 7 ppm is 4. The integration of the peak at around 2 ppm is 6 ppm 200 180 160 140 120 100 060 4020
Interpret the given spectra of Triphenylmethanol.
11-Grignard Reaction 12738 13C NMR Atom Chemical Shift (5) Structure: 1H NMR Atom Chemical Shift (8) Multiplicity Structure: * Specify the multiplicity as a singlet (s), doublet (d), triplet (t), quartet (q), or multiplet (m) Specify the number of hydrogens associated with each peak.
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...
What would the structure look like using the mass spec with a
parent peak of 162, IR, C-NMR and H-NMR?
TRETTENCEI Singlet doublet Singlet triplet muitplet PPM halides 13C NMR: Broadband in provided below. DEPT data is in the provided table. 200 180 160 140 120 100 PPM 80 60 40 20 0 DEPT-135 positive DEPT-90 positive PPM 191 149 138 137 135 128 126 positive positive positive positive positive positive positive positive positive positive