Interpretation:
Out of the two given protons, which proton is shielded to a greater extent and which proton requires higher frequency radio waves to cause a spin flip is to be explained.
Concept introduction:
When H atoms (surrounded by electrons) are subjected to
Chemically distinct protons are surrounded by different electron distributions and therefore have different values of
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Organic Chemistry: Principles and Mechanisms (Second Edition)
- what are the epr spectrum looks like for these two different type? cl CI PET THC cl PET PET Pet cl Viel et ctarrow_forwardWhich of the following nuclei/nucleus is/are spin active. Select one or more:arrow_forwardComplete the following table. Which nucleus requires the least energy to flip its spin at this applied field? Which nucleus requires the most energy? Applied Field (tesla, T) Radio Frequency (MHz) Nucleus Energy (J/mol) 7.05 300 13C 7.05 75.5 19F 7.05 282arrow_forward
- 1. Which proton has the largest multiplicity? Smallest multiplicity?arrow_forwardDescribe nuclear magnetic resonance spectroscopy .arrow_forwardLabel each statement as True or False. a.When a nucleus is strongly shielded, the effective field is larger than the applied field and the absorption shifts downfield. b.When a nucleus is strongly shielded, the effective field is smaller than the applied field and the absorption is shifted upfield. c. A nucleus that is strongly deshielded requires a lower field strength for resonance. d.A nucleus that is strongly shielded absorbs at a larger δ value.arrow_forward
- Label each statement as True or False.a. When a nucleus is strongly shielded, the effective field is larger than the applied field and the absorption shifts downfield.b. When a nucleus is strongly shielded, the effective field is smaller than the applied field and the absorption is shifted upfield.c. A nucleus that is strongly deshielded requires a lower field strength for resonance. d. A nucleus that is strongly shielded absorbs at a larger δ value.arrow_forwardThis arrangement of water molecules in the pore of aquaporins Omo=c -O=o=c 00101c H-N Asn H-N Asn -O=³0=c -O=o=c -Omo=c allows hydrated ions to flow through the pore prevents movement of protons through the pore O facilitates proton hopping from water molecule to water molecule in the pore O both A and Carrow_forwardExplain nuclear magnetic resonance spectroscopy ?arrow_forward
- According to the shell model, the spin-parity of the ground state of 0-18 (Z=8, A=15) nucleus is: O Nuclear spin: 1, parity: + Nuclear spin: 0, parity: + Nuclear spin: 2 parity: + Nuclear spin: 2 parity: - Ο Ο Ο Ο 13arrow_forwardQUES Which of the following is the reason that a more concentrated dye solution absorbs more light than a les concentrated solution? There are more molecules of dye in solution that can absorb photons, meaning fewer photons reach the detector, increasing absorbance. O There are fewer molecules of dye in solution that can absorb photons, meaning more photons reach the detector, increasing absorbance. O There are more molecules of dye in solution that can absorb isotopes. O There are fewer molecules of dye in solution that can absorb electrons, meaning more electrons reach the detector, increasing absorbance. O There are more molecules of dye in solution that can absorb electrons.arrow_forwardWhat is the resonance frequency of a proton in a magnetic field of 14.1 T?arrow_forward
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