Spin Echo Measurements of Nuclear Spin Coupling in Molecules
- 1 December 1952
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 88 (5), 1070-1084
- https://doi.org/10.1103/physrev.88.1070
Abstract
A new type of nuclear spin-spin coupling in molecules in liquids is investigated by means of the spin echo technique. A coupling interaction of the rotationally invariant from in the nuclear induction Hamiltonian predicts the detailed shape of the spin echo envelope. Echo modulation frequencies corresponding to the coupling and the chemical shift between nonequivalent protons are measured in a variety of compounds. A generalized method for calculating the spin echo is presented for large chemical shift and weak coupling among an arbitrary number of spins. The damping of the echo modulation, due to spin relaxation and molecular effects which interrupt the coupling, is accounted for by a phenomenological treatment of the quantum-mechanical expectation value of nuclear magnetization.
Keywords
This publication has 24 references indexed in Scilit:
- Nuclear Electric Quadrupole Interactions in CrystalsPhysical Review B, 1950
- Magnetic Shielding of Nuclei in MoleculesPhysical Review B, 1950
- Dependence of theNuclear Resonance Position on Chemical CompoundPhysical Review B, 1950
- The Dependence of a Nuclear Magnetic Resonance Frequency upon Chemical CompoundPhysical Review B, 1950
- Nuclear Magnetic Resonance Line Shape for a Triangular Configuration of NucleiThe Journal of Chemical Physics, 1950
- Nuclear Magnetic Resonance Shift in MetalsPhysical Review B, 1949
- Nuclear Resonance Absorption in Hydrated Crystals: Fine Structure of the Proton LineThe Journal of Chemical Physics, 1948
- Relaxation Effects in Nuclear Magnetic Resonance AbsorptionPhysical Review B, 1948
- Nuclear InductionPhysical Review B, 1946
- Internal Diamagnetic FieldsPhysical Review B, 1941