Spectroscopic identification worksheet - Tagged

A carbonyl compound has a molecular ion with a m/z of 86. The mass spectra of this compound also has two significant fragments with m/z of 43 and 71. Draw the correct structure of this molecule. Incorrect, 1 attempt remaining x Select to Draw X Incorrect, 1 attempt remaining The total number of carbons in the parent chain is incorrect. Review the reaction conditions including starting materials and/ or intermediate structures and recount the number of carbon atoms in the parent chain of your structure. Retry

ii) Molecular ion peak :the peak corresponding to the intact molecule (with a positive charge) What would the base peak and Molecular ion peaks when isobutane is subjected to Mass spectrometry? Draw the structures and write the molecular weights of the fragments. Circle most stable cation a) tert-butyl cation b) Isopropyl cation c) Ethyl cation. d) Methyl cation 6. What does a loss of 15 represent in Mass spectrum? a fragment of the molecule with a mass of 15 atomic mass units has been lost during the ionization Process 7. Write the isotopes and their % abundance of isotopes of i) Cl

please draw the molecule and label it based on the data in the sheet and use the label in the data table.

On spectra 1 are the mass, IR and 13 C and 1 H NMRspectra of an organic compound.1) a) From these spectra, determine the structure of the molecule.Remember to ignore the triad in the 13 C NMR spectrum at 77 ppm thatcomes from the NMR solvent. b) Draw the structure of the molecule and label each hydrogen with a letter(A, B, C...). Then fill in the peak assignment table below.  hydrogen chemical shift integration splitting pattern couples to

1. Identify the solvent peak in the spectrum and list its chemical shift. 2. Other than the solvent peak, how many signals are present in the 13C NMR and how does this correlate to the number of chemically distinct carbons? 3. Based on the chemical shifts, what functional groups are present in your compound? For each, correlate the functional group with the chemical shift of the identifying peak.

. Calculation of HDI for each compound show work . Label and assign all the functional groups in the diagnostic region of the IR . Label and assign all protons in the NMR on your drawing ( clearly annotate each set of chemically non equivalent protons on your proposed structure and assign their signal on the 1H-NMR spectrum. .what lead to the proposed structure using the HDI,IR AND 1-H-NMR data provided

I need help reading these NMR. I need to identify the solven peak for each, and I need to differentiate the peaks between brominated and debrominated. I would appreciate an explanation, thank you!

Identify the unknown compound using the C NMR and H NMR spectra

Identify the unknown compound using the C NMR and H NMR spectra

2) On spectra 2 are the mass, IR and 13 C and 1 H NMRspectra of an organic compound.a) From these spectra, determine the structure of the molecule. Rememberto ignore the triad in the 13 C NMR spectrum at 7 ppm that comes from theNMR solvent. b) Draw the structure of the molecule and label each hydrogen with a letter(A, B, C...). Then fill in the peak assignment table below.  hydrogen chemical shift integration splitting pattern couples to

3

analyse the spectra and write the name of the compound. Also write brief explanation for each spectra verifying the part of you suggested molecule (For IR indicate the functional groups which matches the peaks, for mass indicate the fragments, for CNMR and HNMR indicate which peak to what?

Please answer this question pertaining to organic chemistry.

Can you help me find the single, triplet, and quartet bond in nmr of ethyl acetate. Also can you explain why is that bond in the picture.

Kindly help me with this question. And kindly show full work so I can learn how to solve these types of questions. Thank you

Can you please help with the organic chemistry question attached?

Each of the following compounds exhibit a single 1H NMR peak. Approximately wherewould you expect each compound to absorb (give your answer in a range of chemical shift)?a. Cyclohexaneb. Acetonec. Benzened. Dichloromethanee. Trimethylamine

. Calculation of HDI for each compound show work . Label and assign all the functional groups in the diagnostic region of the IR . Label and assign all protons in the NMR on your drawing ( clearly annotate each set of chemically non equivalent protons on your proposed structure and assign their signal on the 1H-NMR spectrum. .what lead to the proposed structure using the HDI,IR AND 1-H-NMR data provided

How can I find the numbers of hydrogens per each peak on the NMR chart of the image?

. Calculation of HDI for each compound show work . Label and assign all the functional groups in the diagnostic region of the IR . Label and assign all protons in the NMR on your drawing ( clearly annotate each set of chemically non equivalent protons on your proposed structure and assign their signal on the 1H-NMR spectrum. .what lead to the proposed structure using the HDI,IR AND 1-H-NMR data provided

Please help

In the attached H1-NMR, draw and identify each set of equivalent hydrogens in the structure and list peak they belong to in the NMR spectrum.

Analyze the given graph of Ethyl acetate and answer the question

Imagine that you were given an unidentified aldehyde and performed another Wittig reaction in lab. Use the given data to answer the questions below and identify your original aldehyde. 8 5 R A H 7 + 15 1 C/O (C6H5)3P- Below is shown the ¹H spectrum for the pure alkene product of this experiment. Interpret the signals to identify "R" by assigning each hydrogen by chemical shift, multiplicity (splitting), integration, and any other significant features. 6 A B -5 NaOH 4 PPM (b) One possible alkene product is shown in the reaction above. Draw the other alkene product R 3 H 2 + (C6H5)3PO 2 1 6 1 (a) Label which proton in the product above corresponds to each signal A and B. Explain your assignment and what this tells you about the "R" group. (c) What was your aldehyde starting material? (What is "R"?) 1

Question 1: (5 marks - 3 for 1H NMR and 2 for 13C NMR)) Please draw the 1H-NMR and 13C-NMR spectra for the molecule shown. Be sure to indicate the approximate chemical shifts for the expected signals. In the 1H-NMR please also be sure to indicate the correct coupling patterns and integrations. Please use the symbols 1H, 2H 3H, 4H above each signal to indicate the number of hydrogen atoms responsible for each signal. HO 8 7 6 5 4 3 2 Chemical Shift (ppm) 200 180 160 140 120 100 80 60 40 10 Chemical Shift (ppm) 20 OH

Predict how many peaks you would expect to observe in the ‘H NMR,spectrum of the compound shown below and indicate the integration value you would expect to see for each peak. Please explain how you got the answer. (It may be useful to label each hydrogen atom using lowercase letters).

Consider the following proton NMR spectrum. The compound producing it contains oxygen, and IR analysis shows that it has v(C=O). Integrations are given at each signal . Propose a structure and assign it consistent with the NMR information. (Assign=draw structure and label a,b,c etc, each H-type; then label spectrum to tell which signal is from which H-type.) *See the second blue image for help.