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
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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_forwardProblem (a) Answer the following questions regarding the F term for some electron configuration and its F2 level. (i) What is the S value for the term? (ii) What is the L value for the term? (iii) How many states are in the term? (iv) What is the multiplicity of the term? (v) What is the J value for the level? (vi) How many states are in the level? (b) What is the Clebsch-Gordon series for J based on L = 6 and S = 3/2?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
- Why is this the correct spectra for these molecules. Identify a specific absorption band which identifies each characteristic functional group of the molecule chosen.arrow_forwardA 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_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
- 5. Calculate the reduced mass for the two isotopomers (HCl and HCI). Which isotopomer do you expect to have a higher vibrational frequency ? (Recall = 20arrow_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_forwardEach peak in the spectrum below can be used to provide a measure of the mass of this protein, you can work out the charge associated with each peak, and measures can be averaged to find the overall mass. Use simultaneous equations to find the charge associated with each peak in the spectra below, which will allow you to calculate the average mass of each species. Include an estimate of the error associated with this measure.arrow_forward
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