Abstract
We present a general method for constructing a subset of the constants of motion in terms of products of spin operators. These operators are then used to give insight into the multi-spin orders comprising the quasi-equilibrium state formed under a Jeener-Broekaert sequence in small, dipolar-coupled, spin systems. We further show that constants of motion that represent single-quantum coherences are present due to the symmetry of the dipolar Hamiltonian under 180° spin rotations, and that such coherences contribute a DC component to the FID which vanishes in the absence of the flip-flop terms and is only present for spin clusters with an odd number of spins.
| Original language | English |
|---|---|
| Pages (from-to) | 22-29 |
| Number of pages | 8 |
| Journal | Solid State Nuclear Magnetic Resonance |
| Volume | 29 |
| Issue number | 1-3 |
| DOIs | |
| State | Published - Feb 1 2006 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Physical and Theoretical Chemistry
- Spectroscopy
- Electronic, Optical and Magnetic Materials
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Constants of motion in NMR spectroscopy. / Walls, Jamie; Lin, Yung Ya.
In: Solid State Nuclear Magnetic Resonance, Vol. 29, No. 1-3, 01.02.2006, p. 22-29.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Constants of motion in NMR spectroscopy
AU - Walls, Jamie
AU - Lin, Yung Ya
PY - 2006/2/1
Y1 - 2006/2/1
N2 - We present a general method for constructing a subset of the constants of motion in terms of products of spin operators. These operators are then used to give insight into the multi-spin orders comprising the quasi-equilibrium state formed under a Jeener-Broekaert sequence in small, dipolar-coupled, spin systems. We further show that constants of motion that represent single-quantum coherences are present due to the symmetry of the dipolar Hamiltonian under 180° spin rotations, and that such coherences contribute a DC component to the FID which vanishes in the absence of the flip-flop terms and is only present for spin clusters with an odd number of spins.
AB - We present a general method for constructing a subset of the constants of motion in terms of products of spin operators. These operators are then used to give insight into the multi-spin orders comprising the quasi-equilibrium state formed under a Jeener-Broekaert sequence in small, dipolar-coupled, spin systems. We further show that constants of motion that represent single-quantum coherences are present due to the symmetry of the dipolar Hamiltonian under 180° spin rotations, and that such coherences contribute a DC component to the FID which vanishes in the absence of the flip-flop terms and is only present for spin clusters with an odd number of spins.
UR - http://www.scopus.com/inward/record.url?scp=29144533010&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=29144533010&partnerID=8YFLogxK
U2 - 10.1016/j.ssnmr.2005.09.007
DO - 10.1016/j.ssnmr.2005.09.007
M3 - Article
VL - 29
SP - 22
EP - 29
JO - Solid State Nuclear Magnetic Resonance
JF - Solid State Nuclear Magnetic Resonance
SN - 0926-2040
IS - 1-3
ER -