Interpretation:
Many nuclei have spin and all nuclei are electrically charged. If an external magnetic field is applied, an energy transfer is possible between the ground energy to a higher energy level.
Concept introduction:
The exact frequency necessary for resonance depends both on the strength of the external magnetic field, the identity of the nucleus, and the electronic environment of the nucleus. If a very strong magnetic field is applied, the energy difference between the two spin states is larger and higher-frequency (higher-energy) radiation is required for a spin-flip. If a weaker magnetic field is applied, less energy is required to effect the transition between nuclear spin states.
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Chapter 13 Solutions
Organic Chemistry
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- 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_forwardCalculate the magnetic fields that correspond to proton resonance frequencies of60.00 MHzarrow_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_forward