Concept explainers
Interpretation:
It is to be explained at which magnetic field experienced by a hydrogen nucleus is the energy difference between the
Concept introduction:
Protons have quantized magnetic dipoles and thus behave as tiny bar magnets, with a north and a south pole. When exposed to
The difference in energy between the two spin states of a proton is given by the equation:
The energy difference,
Answer to Problem 16.1P
The energy difference will be greater at
Explanation of Solution
The difference in energy between the two spin states of a proton is given by the equation:
The energy difference,
Thus, at greater external magnetic field,
The magnetic field experienced by hydrogen nucleus, at which the energy difference between the
Want to see more full solutions like this?
Chapter 16 Solutions
Organic Chemistry: Principles and Mechanisms (Second Edition)
- Draw a diagram analogous to Figure 11.15, but now representing an electrons spin and its z-component. How many cones are there?arrow_forwardDecreasing order of chemical shift of H?arrow_forwardProblem (2): .A carbon deuterium C-D bond is electronically much like a C-H bond, and it has similar stiffness, measured by spring constant, k. The deuterium isotope has twice the mass of the hydrogen atom. Calculate the IR absorption frequency of a typical C-D bond. Given that the IR absorption frequency of C-H is 3000 cm-1? m(C) = 12u , m(H) = 1uarrow_forward
- A sample of a red dye and a sample of a blue dye both have the same concentration. Their Absorbance is measured using the same spectrophotometer. At a particular wavelength, will both samples give the same Absorbance reading? Why or why not?arrow_forwardCompute for the linear equation of the following concentration and absorbance given in the table. y=0.6169x+0.1031 y=0.6469x+0.1231 y=0.7169x+0.2031 y=0.5169x+0.1531arrow_forwardWhy is this the correct spectra for these molecules. Identify a specific absorption band which identifies each characteristic functional group of the molecule chosen.arrow_forward
- Decide which spectra goes with which molecule and explain, please.arrow_forwardLabel below statement as True or False. When a nucleus is strongly shielded, the effective field is smaller than the applied field and the absorption is shifted upfield .arrow_forwardFind the number of different kinds proton and carbon signals in the following compound. Write the spin multiplicity of each proton in these compounds?arrow_forward
- (a) Calculate the energy difference between the two spin states of 1H and of 13C in a magnetic field of 6.8 T. 1H 4.0 1.91e-29 X J 13C 4.80e-33 X J (b) What is the precession frequency of a 'H nucleus at this magnetic field? Of a 13C nucleus? 1H 4.0 290 MHz 13C 4.0 73 MHz (c) At what magnetic field do protons precess at a frequency of 300. MHz? [4.0 7.04arrow_forward5. Calculate the reduced mass for the two isotopomers (HCl and HCI). Which isotopomer do you expect to have a higher vibrational frequency ? (Recall = 20arrow_forwarddetermine the structure of the unknown given the spectrumarrow_forward
- Physical ChemistryChemistryISBN:9781133958437Author:Ball, David W. (david Warren), BAER, TomasPublisher:Wadsworth Cengage Learning,Organic ChemistryChemistryISBN:9781305580350Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. FootePublisher:Cengage Learning
- Organic Chemistry: A Guided InquiryChemistryISBN:9780618974122Author:Andrei StraumanisPublisher:Cengage Learning