TRANCESERelative IntensityUnknown #5Elemental Analysis:69.72% Carbon, 11.70% Hydrogen, 18.57% OxygenMass Spec100--150180-604020-to10203040506070IRm/z400030002000 150010005001H NMR13C NMR1110ppmExchanges200 190 150120 200Chemical Formula:HDI Calculation:Proposed Structure:withD₂O

The elemental percentages are given:C = 69.72%H = 11.70%O = 18.57%In moles : Carbon: 69.72 g/12…

Answered: TRANCESE Relative Intensity Unknown #5…

Principles of Instrumental Analysis

7th Edition

ISBN:9781305577213

Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Chapter19: Nuclear Magnetic Resonance Spectroscopy

Section: Chapter Questions

Problem 19.33QAP

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Propose structures for molecules that meet the following descriptions. Assume that the kinds of carbons (1, 2, 3, or 4) have been assigned by DEPTNMR. a) C6H12O;IR: 1715 cm-1; 13C NMR: 8.0 (1), 18.5 (1), 33.5 (2), 40.6 (3), 214.0 (4) b) C5H10O; IR: 1730 cm-1; 13C NMR: 22.6 (1), 23.6 8 (3), 52.8 8 (2), 202.4 8 (3) c) C6H8O; IR: 1680 cm-1; 13C NMR: 22.9 (2), 25.8 8 (2), 38.2 (2). 129.8 8 (3), 150.6 8 (3), 198.7 (4)
Analyze the HNMR spectrum below and identify the compound
determine the structure of the given spectrum
For questions 13-16, match the molecule (A-D) to the correct spectra. :0: :0: „Br он A D в 13. 13C-NMR 200 180 160 140 120 100 80 60 40 20 CDS-03-258 ppm 100 Mass spectrum 80 60 40 20 0.0+ 0.0 40 80 120 160 200 m/z Rel. Intensity
Deduce the structures from the nmr data
The unknown compound is one of the following Methyl Salicylate Benzoic Acid Salicylic Acid Vitamin C (Ascorbic Acid) identify the main features of the spectrum with references to support the peaks/bands.
predict the structure of the unknown compound using the image attached. Annotate all spectraEach spectra must be used to arrive at the answerThis means each piece of provided information should be annotated in some way depending on the type of analysis and information gained from it.calculate the HDI for proposed structure and provide the chemical formula
This is all one question.
Can you explain this nmr
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…
Please assist in identifying the all the major peaks of the NMR and what they corresponds with. Please explain.
Please describe the key characteristics of the H-NMR and 13C-NMR spectra.

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