Exact simulation of multiple-quantum dynamics in solid-state NMR: implications for spin counting

1990 ◽  
Vol 71 (5) ◽  
pp. 959-978 ◽  
Author(s):  
M. Munowitz
Keyword(s):  
Solid State ◽  
Solid State Nmr ◽  
Quantum Dynamics ◽  
Multiple Quantum ◽  
Exact Simulation ◽  
Spin Counting

Multiple‐quantum dynamics in solid state NMR

1985 ◽  
Vol 83 (5) ◽  
pp. 2015-2025 ◽  
Author(s):  
J. Baum ◽  
M. Munowitz ◽  
A. N. Garroway ◽  
A. Pines
Keyword(s):  
Solid State ◽  
Solid State Nmr ◽  
Quantum Dynamics ◽  
Multiple Quantum

scholarly journals Combination of solid state NMR and DFT calculation to elucidate the state of sodium in hard carbon electrodes

2016 ◽  
Vol 4 (34) ◽  
pp. 13183-13193 ◽  
Author(s):  
Ryohei Morita ◽  
Kazuma Gotoh ◽  
Mika Fukunishi ◽  
Kei Kubota ◽  
Shinichi Komaba ◽  
...  
Keyword(s):  
Solid State ◽  
Solid State Nmr ◽  
Dft Calculation ◽  
Magic Angle Spinning ◽  
The State ◽  
Mas Nmr ◽  
Magic Angle ◽  
Multiple Quantum ◽  
Hard Carbon ◽  
Angle Spinning

We examined the state of sodium electrochemically inserted in HC prepared at 700–2000 °C using solid state Na magic angle spinning (MAS) NMR and multiple quantum (MQ) MAS NMR.

scholarly journals Quantum dynamics of excitations and decoherence in many-spin systems detected with Loschmidt echoes: its relation to their spreading through the Hilbert space

2016 ◽  
Vol 374 (2069) ◽  
pp. 20150155 ◽  
Author(s):  
C. M. Sánchez ◽  
P. R. Levstein ◽  
L. Buljubasich ◽  
H. M. Pastawski ◽  
A. K. Chattah
Keyword(s):  
Hilbert Space ◽  
Quantum Dynamics ◽  
Spin Systems ◽  
Equilibrium Density ◽  
Multiple Quantum ◽  
Counting Procedure ◽  
Two Samples ◽  
Spin Counting ◽  
Loschmidt Echo ◽  
The Many

In this work, we overview time-reversal nuclear magnetic resonance (NMR) experiments in many-spin systems evolving under the dipolar Hamiltonian. The Loschmidt echo (LE) in NMR is the signal of excitations which, after evolving with a forward Hamiltonian, is recovered by means of a backward evolution. The presence of non-diagonal terms in the non-equilibrium density matrix of the many-body state is directly monitored experimentally by encoding the multiple quantum coherences. This enables a spin counting procedure, giving information on the spreading of an excitation through the Hilbert space and the formation of clusters of correlated spins. Two samples representing different spin systems with coupled networks were used in the experiments. Protons in polycrystalline ferrocene correspond to an ‘infinite’ network. By contrast, the liquid crystal N -(4-methoxybenzylidene)-4-butylaniline in the nematic mesophase represents a finite proton system with a hierarchical set of couplings. A close connection was established between the LE decay and the spin counting measurements, confirming the hypothesis that the complexity of the system is driven by the coherent dynamics.

Spectral Editing in Solid-State NMR Using Scalar Multiple Quantum Filters

2001 ◽  
Vol 151 (1) ◽  
pp. 40-47 ◽  
Author(s):  
Dimitris Sakellariou ◽  
Anne Lesage ◽  
Lyndon Emsley
Keyword(s):  
Solid State ◽  
Solid State Nmr ◽  
Multiple Quantum ◽  
Spectral Editing ◽  
Scalar Multiple

Determination of Molecular Geometry by High-Order Multiple-Quantum Evolution in Solid-State NMR

2000 ◽  
Vol 144 (2) ◽  
pp. 266-279 ◽  
Author(s):  
Mattias Edén ◽  
Andreas Brinkmann ◽  
Henrik Luthman ◽  
Lars Eriksson ◽  
Malcolm H Levitt
Keyword(s):  
Solid State ◽  
Solid State Nmr ◽  
Molecular Geometry ◽  
High Order ◽  
Quantum Evolution ◽  
Multiple Quantum

scholarly journals Optimized multiple quantum MAS lineshape simulations in solid state NMR

2009 ◽  
Vol 180 (10) ◽  
pp. 1973-1982 ◽  
Author(s):  
William J. Brouwer ◽  
Michael C. Davis ◽  
Karl T. Mueller
Keyword(s):  
Solid State ◽  
Solid State Nmr ◽  
Multiple Quantum

scholarly journals t1-Noise eliminated dipolar heteronuclear multiple-quantum coherence solid-state NMR spectroscopy

2020 ◽  
Vol 22 (36) ◽  
pp. 20815-20828 ◽  
Author(s):  
Amrit Venkatesh ◽  
Xuechen Luan ◽  
Frédéric A. Perras ◽  
Ivan Hung ◽  
Wenyu Huang ◽  
...  
Keyword(s):  
Solid State ◽  
Solid State Nmr ◽  
Quantum Correlation ◽  
Quantum Coherence ◽  
Pulse Sequences ◽  
Multiple Quantum ◽  
Heteronuclear Correlation ◽  
Heteronuclear Multiple Quantum Coherence ◽  
Multiple Quantum Coherence ◽  
Nuclear Magnetic Resonance Pulse

t1-Noise eliminated (TONE) heteronuclear multiple quantum correlation (HMQC) solid-state nuclear magnetic resonance pulse sequences improve the sensitivity of 2D 1H{X} heteronuclear correlation experiments with X = 17O, 25Mg, 27Al and 35Cl.

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