The 1h nmr spectrum

Assignment Help Chemistry
Reference no: EM131247

Note that the integrals for some of the resonances in the 1H NMR spectrum are higher than they should be due to the shear number of hydrogens in this compound (this is not uncommon). You should make the following corrections to the spectrum before analyzing it.

The integral for the resonance at approximately 2.2 should be 6 (not 6.6).
The integral for the resonance at approximately 1.5 should be 6 (not 6.7).
The integral for the resonance at approximately 1.2 should be 60 (not 66.8).
The integral for the resonance at approximately 0.8 should be 9 (not 9.9).

1. For the pair of doublet of doublets centered at 4.18 ppm extract all relevant coupling constants from the table and then draw a splitting tree
leading to each doublet of doublet. Clearly label what the coupling constants are on each splitting tree (see Figure 8.15 on page 159 of the
lab text for an example)

2. What multiplicity would you predict the resonance centered at 5.2 ppm to be? (e.g. a doublet of doublet, a quartet of quartets, etc.)

3. Based on the coupling constants you extracted in Part 1, use the online "Multiplet Maker" given on page 8 of the September 13th lecture slides to
calculate what the multiplet at 5.2 ppm should actually look like. Does the multiplet observed in the 1H NMR spectrum resemble what the "Multiplet Maker" predicted? Before answering, consider that small peaks might be "hidden" by larger peaks, especially when one considers that NONE of the resonances you observe in 1H NMR spectrum show up as single lines (as shown in the predicted multiplet) with no shape.

Reference no: EM131247

Questions Cloud

Prepare a linear support vector machine svm : Write a computer program to prepare a Linear Support Vector Machine SVM
Market for cigarettes : The Australian government administers two programs that affect the market for cigarettes.
Multiplicative decomposition method : Multiplicative decomposition method
Advanced design methodologies : Focus mainly of consumer items such as iPods, coke bottles, running shoes
The 1h nmr spectrum : Integrals for some of the resonances in the 1H NMR spectrum are higher than they should be due to the shear number of hydrogens in this compound
Write an article : Write an article
Evaluate mergers and acquisitions : Concept of business, forms and organisations of business, business strategy, financial management methods, allocation of capital and control of an organisation.
How much money require in order maximize the utility : How much total utility does the consumer receive
Management function and behaviour : What are the various methods of inventory valuation? Explain the effect of inventory valuation methods on profit during inflation. What are the provisions of Accounting Standard 2 (AS-2) with regards to inventory valuation?

Reviews

Write a Review

Chemistry Questions & Answers

  Steps in the mechanism for the following reaction

Show all the steps in the mechanism for the following reaction, When benzene is mixed with deuterated sulfuric acid, deuterium is slowly incorporated onto the ring. Show the mechanism for this reaction and explain how this relates the sulfonation of ..

  Prior to placing piece of metal into the graduated cylinder

This assignment inhibits chemistry Laboratory Questions.

  Write the structures of the saytzeff elimination

Write the structures of the saytzeff elimination

  Calculate ph - chemistry questions

Chemistry Questions on Calculate P H

  How many mols of hydrogen can produce

how many mols of H 2 can produce

  Analysis of corrosion mechanisms

Analysis of corrosion mechanisms and preventative measures

  Chemical and pharmaceutical science

Write an equation for the formation of an acetal from reaction of excess methanol with benzaldehyde in the presence of an acid catalyst.

  Calculate the approximate sulphur

Calculate the approximate SO 2 mass emission in lb/day.

  What is the structure - stereochemistry

What is the structure (including functional groups)? Stereochemistry (racemic or single enantiomer)?

  Design a qualitative analysis scheme

Design a qualitative analysis scheme

  What will be the resultant pressure

What will be the resultant pressure when the stopcock is opened?

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd