Complete as much of the table as possible below. Some resonance signals may overlap and/or give complex coupling pattems. Chemical shift Multiplicity 6 (ppm) Coupling constant J (Hz) Assignment Integral (no. of H)

For the following structures: (a) find # signals, chem shift ranges, integration, splitting and (b) match the two spectrums.

Please list all major chemical Shifts, Integration, Splitting, and Conclusion for the 1H-NMR peaks.

NMR data Summary NMR solvent: DMSO-d6 'H NMR: Splitting (Multiplicity) Integration Chemical Shift 9.67 singlet 1H singlet doublet 9.17 7.37 6.72 2.00 1H 2H doublet singlet 2H 3H 1"C NMR: Chemical Shift 167.8 153.3 131.1 121.1 115.1 23.8 15N NMR: Chemical Shift 132.3 Instructions: Step 0: Look at the structure of Tylenol. Determine integration, and splitting you are expecting in the 'H NMR. Step 1: Look at the integration and splitting of the signals in the H NMR spectrum - assign the chemical shift of the protons of the methyl group; make a note which signals in the 'H NMR are due aromatic protons, NH and/or OH. Step 2: Look at the 'HSN HSQC spectrum - Use this spectrum to assign the chemical shifts of the NH proton and the OH proton. Step 3: Look at the 'H1SN HMBC spectrum - Use this spectrum to assign the chemical shifts of the aromatic protons in the 'H NMR. Step 4: Look at the 13C NMR spectrum - Make a note which carbon atoms are aromatic and/or alkyl. Assign the chemical shift of…

ching and le X A PLQ-PHY2054L.docx - Google X engagenow.com/ilrn/takeAssignment/takeCovalentActivity.do?locator=Dassignment-take ... Translate Open Vellum Course Home [Review Topics] [References] Splitting of a signal in a proton NMR spectrum tells us the number of chemically non-equivalent hydrogens in the immediate vicinity of the hydrogen giving the signal. Predict the number of lines exhibited by hydrogens at the labeled positions in a first-order NMR spectrum. (Make the approximation that all coupling constants are equal.) 1) b a The number of lines exhibited by hydrogen(s) a is The number of lines exhibited by hydrogen(s) b is The number of lines exhibited by hydrogen(s) c is 2) b NH, The number of lines exhibited by hydrogen(s) a is The number of lines exhibited by hydrogen(s) b is The number of lines exhibited by hydrogen(s) c is D

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Analyze the HNMR data attached and state all take aways possible (stating all protons, chemical shift, multiplicity, integration, and coupling constants if necessary)

3. What molecule is used for a standard in proton and carbon NMR spectroscopy (name or structure, not abbreviation)?