Rapid acquisition of data dense solid-state CPMG NMR spectral sets using multi-dimensional statistical analysis

Mason, H. E.; Uribe, E. C.; Shusterman, J. A.

doi:10.1039/C8CP02382D

Title: Rapid acquisition of data dense solid-state CPMG NMR spectral sets using multi-dimensional statistical analysis

Abstract

Tensor-rank decomposition methods have been applied to variable contact time²⁹Si{¹H} CP/CPMG NMR data sets to extract NMR dynamics information and dramatically decrease conventional NMR acquisition times.

Authors:

^[1]; Uribe, E. C. ^[2]; Shusterman, J. A. ^[3]

Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sandia National Lab. (SNL-CA), Livermore, CA (United States)
Hunter College of City Univ. of New York, New York, NY (United States)

Publication Date:: Wed Jun 20 00:00:00 EDT 2018

Research Org.:: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Sandia National Lab. (SNL-CA), Livermore, CA (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Biological and Environmental Research (BER)

OSTI Identifier:: 1463021

Alternate Identifier(s):: OSTI ID: 1456294; OSTI ID: 1464198

Report Number(s):: LLNL-JRNL-736456; SAND-2018-8223J
Journal ID: ISSN 1463-9076; PPCPFQ; 888524

Grant/Contract Number:: AC52-07NA27344; AC04-94AL85000

Resource Type:: Accepted Manuscript

Journal Name:: Physical Chemistry Chemical Physics. PCCP (Print)

Additional Journal Information:: Journal Name: Physical Chemistry Chemical Physics. PCCP (Print); Journal Volume: 20; Journal Issue: 26; Journal ID: ISSN 1463-9076

Publisher:: Royal Society of Chemistry

Country of Publication:: United States

Language:: English

Subject:: 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats


                    Mason, H. E., Uribe, E. C., and Shusterman, J. A. Rapid acquisition of data dense solid-state CPMG NMR spectral sets using multi-dimensional statistical analysis.  United States: N. p., 2018. 
Web.  doi:10.1039/C8CP02382D.

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                    Mason, H. E., Uribe, E. C., & Shusterman, J. A. Rapid acquisition of data dense solid-state CPMG NMR spectral sets using multi-dimensional statistical analysis.  United States.  https://doi.org/10.1039/C8CP02382D

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                    Mason, H. E., Uribe, E. C., and Shusterman, J. A. Wed .  
"Rapid acquisition of data dense solid-state CPMG NMR spectral sets using multi-dimensional statistical analysis".  United States.  https://doi.org/10.1039/C8CP02382D.  https://www.osti.gov/servlets/purl/1463021.

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@article{osti_1463021,

  title        = {Rapid acquisition of data dense solid-state CPMG NMR spectral sets using multi-dimensional statistical analysis},

  author       = {Mason, H. E. and Uribe, E. C. and Shusterman, J. A.},

  abstractNote = {Tensor-rank decomposition methods have been applied to variable contact time29Si{1H} CP/CPMG NMR data sets to extract NMR dynamics information and dramatically decrease conventional NMR acquisition times.},

  doi          = {10.1039/C8CP02382D},

  journal      = {Physical Chemistry Chemical Physics. PCCP (Print)},

  number       = 26,

  volume       = 20,

  place        = {United States},

  year         = {Wed Jun 20 00:00:00 EDT 2018},

  month        = {Wed Jun 20 00:00:00 EDT 2018}

}

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https://doi.org/10.1039/C8CP02382D

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Figures / Tables:

Figure-1: Data derived from the tensor-rank decomposition of variable contact time ²⁹Si{¹H} CP/MAS CPMG NMR data sets for the DPTS-SBA sample. Contributions from component 1 are given in blue and those from component 2 are given in red (a) The extracted T₂ data points (solid symbols) and their corresponding least-squaremore »

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Works referenced in this record:

Spatial distribution of organic functional groups supported on mesoporous silica nanoparticles: a study by conventional and DNP-enhanced ²⁹ Si solid-state NMR
journal, January 2017

Kobayashi, Takeshi; Singappuli-Arachchige, Dilini; Wang, Zhuoran
Physical Chemistry Chemical Physics, Vol. 19, Issue 3
DOI: 10.1039/C6CP07642D

Probing the interaction of U( vi ) with phosphonate-functionalized mesoporous silica using solid-state NMR spectroscopy
journal, January 2016

Uribe, Eva C.; Mason, Harris E.; Shusterman, Jennifer A.
Dalton Transactions, Vol. 45, Issue 25
DOI: 10.1039/C6DT01200K

Solid-state NMR spectroscopy of Pb-rich apatite
journal, December 2009

Mason, Harris E.; Hirner, Joshua J.; Xu, Wenqian
Magnetic Resonance in Chemistry, Vol. 47, Issue 12
DOI: 10.1002/mrc.2514

Development and Testing of Diglycolamide Functionalized Mesoporous Silica for Sorption of Trivalent Actinides and Lanthanides
journal, September 2015

Shusterman, Jennifer A.; Mason, Harris E.; Bowers, Jon
ACS Applied Materials & Interfaces, Vol. 7, Issue 37
DOI: 10.1021/acsami.5b04481

¹¹⁹ Sn MAS NMR Study of the Interaction of Probe Molecules with Sn-BEA: The Origin of Penta- and Hexacoordinated Tin Formation
journal, December 2016

Yakimov, Alexander V.; Kolyagin, Yury G.; Tolborg, Søren
The Journal of Physical Chemistry C, Vol. 120, Issue 49
DOI: 10.1021/acs.jpcc.6b09999

Unmixing the NMR spectra of similar species – vive la différence
journal, January 2013

Colbourne, Adam A.; Meier, Sebastian; Morris, Gareth A.
Chemical Communications, Vol. 49, Issue 89
DOI: 10.1039/c3cc46228e

Synthesis and characterization of polymeric C18 stationary phases for liquid chromatography
journal, March 1984

Sander, Lane C.; Wise, Stephen A.
Analytical Chemistry, Vol. 56, Issue 3
DOI: 10.1021/ac00267a047

Site-resolved 2H relaxation experiments in solid materials by global line-shape analysis of MAS NMR spectra
journal, July 2016

Lindh, E. L.; Stilbs, P.; Furó, I.
Journal of Magnetic Resonance, Vol. 268
DOI: 10.1016/j.jmr.2016.04.014

Dynamic Nuclear Polarization Surface Enhanced NMR Spectroscopy
journal, March 2013

Rossini, Aaron J.; Zagdoun, Alexandre; Lelli, Moreno
Accounts of Chemical Research, Vol. 46, Issue 9
DOI: 10.1021/ar300322x

Global least‐squares analysis of large, correlated spectral data sets and application to chemical kinetics and time‐resolved fluorescence
journal, December 1996

Stilbs, Peter; Paulsen, Kim
Review of Scientific Instruments, Vol. 67, Issue 12
DOI: 10.1063/1.1147539

One hundred fold overall sensitivity enhancements for Silicon-29 NMR spectroscopy of surfaces by dynamic nuclear polarization with CPMG acquisition
journal, January 2012

Rossini, Aaron J.; Zagdoun, Alexandre; Lelli, Moreno
Chem. Sci., Vol. 3, Issue 1
DOI: 10.1039/C1SC00550B

Natural Abundance ¹⁷ O DNP Two-Dimensional and Surface-Enhanced NMR Spectroscopy
journal, June 2015

Perras, Frédéric A.; Kobayashi, Takeshi; Pruski, Marek
Journal of the American Chemical Society, Vol. 137, Issue 26
DOI: 10.1021/jacs.5b03905

29Si and 17O (Q)CPMG-MAS solid-state NMR experiments as an optimum approach for half-integer nuclei having long T1 relaxation times
journal, May 2002

Larsen, Flemming H.; Farnan, Ian
Chemical Physics Letters, Vol. 357, Issue 5-6
DOI: 10.1016/S0009-2614(02)00520-1

Probing the Surface Structure of Divalent Transition Metals Using Surface Specific Solid-State NMR Spectroscopy
journal, February 2012

Mason, Harris E.; Harley, Stephen J.; Maxwell, Robert S.
Environmental Science & Technology, Vol. 46, Issue 5
DOI: 10.1021/es203733c

Kinetics of Cross-Polarization in Solid-State NMR: A Guide for Chemists
journal, March 2002

Kolodziejski, Waclaw; Klinowski, Jacek
Chemical Reviews, Vol. 102, Issue 3
DOI: 10.1021/cr000060n

Synthesis of ordered large pore SBA-15 spherical particles for adsorption of biomolecules
journal, July 2006

Katiyar, Amit; Yadav, Santosh; Smirniotis, Panagiotis G.
Journal of Chromatography A, Vol. 1122, Issue 1-2
DOI: 10.1016/j.chroma.2006.04.055

Application of ¹¹⁹ Sn CPMG MAS NMR for Fast Characterization of Sn Sites in Zeolites with Natural ¹¹⁹ Sn Isotope Abundance
journal, March 2016

Kolyagin, Yury G.; Yakimov, Alexander V.; Tolborg, Søren
The Journal of Physical Chemistry Letters, Vol. 7, Issue 7
DOI: 10.1021/acs.jpclett.6b00249

Direct dynamic nuclear polarization targeting catalytically active ²⁷ Al sites
journal, January 2015

Lund, Alicia; Hsieh, Ming-Feng; Siaw, Ting-Ann
Physical Chemistry Chemical Physics, Vol. 17, Issue 38
DOI: 10.1039/C5CP03396A

Analysis of trivalent cation complexation to functionalized mesoporous silica using solid-state NMR spectroscopy
journal, January 2014

Shusterman, Jennifer; Mason, Harris; Bruchet, Anthony
Dalton Trans., Vol. 43, Issue 44
DOI: 10.1039/C4DT02380C

Communication: Phase incremented echo train acquisition in NMR spectroscopy
journal, June 2012

Baltisberger, Jay H.; Walder, Brennan J.; Keeler, Eric G.
The Journal of Chemical Physics, Vol. 136, Issue 21
DOI: 10.1063/1.4728105

Mesoporous Silica Nanoparticles Loaded with Surfactant: Low Temperature Magic Angle Spinning ¹³ C and ²⁹ Si NMR Enhanced by Dynamic Nuclear Polarization
journal, January 2013

Lafon, Olivier; Thankamony, Aany S. Lilly; Kobayashi, Takeshi
The Journal of Physical Chemistry C, Vol. 117, Issue 3
DOI: 10.1021/jp310109s

Organic layer formation and sorption of U( vi ) on acetamide diethylphosphonate-functionalized mesoporous silica
journal, January 2017

Uribe, Eva C.; Mason, Harris E.; Shusterman, Jennifer A.
Dalton Transactions, Vol. 46, Issue 16
DOI: 10.1039/C7DT00362E

Sensitivity-Enhanced Quadrupolar-Echo NMR of Half-Integer Quadrupolar Nuclei. Magnitudes and Relative Orientation of Chemical Shielding and Quadrupolar Coupling Tensors
journal, November 1997

Larsen, Flemming H.; Jakobsen, Hans J.; Ellis, Paul D.
The Journal of Physical Chemistry A, Vol. 101, Issue 46
DOI: 10.1021/jp971547b

Analysis of sensitivity enhancement by dynamic nuclear polarization in solid-state NMR: a case study of functionalized mesoporous materials
journal, January 2013

Kobayashi, Takeshi; Lafon, Olivier; Lilly Thankamony, Aany S.
Physical Chemistry Chemical Physics, Vol. 15, Issue 15
DOI: 10.1039/c3cp00039g

Surface-selective direct ¹⁷ O DNP NMR of CeO ₂ nanoparticles
journal, January 2017

Hope, Michael A.; Halat, David M.; Magusin, Pieter C. M. M.
Chemical Communications, Vol. 53, Issue 13
DOI: 10.1039/C6CC10145C

Constraints on aluminum and scandium substitution mechanisms in forsterite, periclase, and larnite: High-resolution NMR
journal, June 2017

McCarty, Ryan J.; Stebbins, Jonathan F.
American Mineralogist, Vol. 102, Issue 6
DOI: 10.2138/am-2017-5976

Spectral deconvolution of NMR cross polarization data sets
journal, July 2009

Hedin, Niklas; Ng, Jovice B. S.; Stilbs, Peter
Solid State Nuclear Magnetic Resonance, Vol. 35, Issue 4
DOI: 10.1016/j.ssnmr.2009.04.001

Speedy Component Resolution: An Improved Tool for Processing Diffusion-Ordered Spectroscopy Data
journal, May 2008

Nilsson, Mathias; Morris, Gareth A.
Analytical Chemistry, Vol. 80, Issue 10
DOI: 10.1021/ac7025833

29Si NMR in solid state with CPMG acquisition under MAS
journal, August 2008

Wiench, J. W.; Lin, V. S. -Y.; Pruski, M.
Journal of Magnetic Resonance, Vol. 193, Issue 2
DOI: 10.1016/j.jmr.2008.05.007

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Title: Rapid acquisition of data dense solid-state CPMG NMR spectral sets using multi-dimensional statistical analysis

Abstract

Citation Formats

Figures / Tables:

Spatial distribution of organic functional groups supported on mesoporous silica nanoparticles: a study by conventional and DNP-enhanced 29 Si solid-state NMR journal, January 2017

Probing the interaction of U( vi ) with phosphonate-functionalized mesoporous silica using solid-state NMR spectroscopy journal, January 2016

Solid-state NMR spectroscopy of Pb-rich apatite journal, December 2009

Development and Testing of Diglycolamide Functionalized Mesoporous Silica for Sorption of Trivalent Actinides and Lanthanides journal, September 2015

119 Sn MAS NMR Study of the Interaction of Probe Molecules with Sn-BEA: The Origin of Penta- and Hexacoordinated Tin Formation journal, December 2016

Unmixing the NMR spectra of similar species – vive la différence journal, January 2013

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Site-resolved 2H relaxation experiments in solid materials by global line-shape analysis of MAS NMR spectra journal, July 2016

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Global least‐squares analysis of large, correlated spectral data sets and application to chemical kinetics and time‐resolved fluorescence journal, December 1996

One hundred fold overall sensitivity enhancements for Silicon-29 NMR spectroscopy of surfaces by dynamic nuclear polarization with CPMG acquisition journal, January 2012

Natural Abundance 17 O DNP Two-Dimensional and Surface-Enhanced NMR Spectroscopy journal, June 2015

29Si and 17O (Q)CPMG-MAS solid-state NMR experiments as an optimum approach for half-integer nuclei having long T1 relaxation times journal, May 2002

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Surface-selective direct 17 O DNP NMR of CeO 2 nanoparticles journal, January 2017

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29Si NMR in solid state with CPMG acquisition under MAS journal, August 2008

Spatial distribution of organic functional groups supported on mesoporous silica nanoparticles: a study by conventional and DNP-enhanced ²⁹ Si solid-state NMR
journal, January 2017

Probing the interaction of U( vi ) with phosphonate-functionalized mesoporous silica using solid-state NMR spectroscopy
journal, January 2016

Solid-state NMR spectroscopy of Pb-rich apatite
journal, December 2009

Development and Testing of Diglycolamide Functionalized Mesoporous Silica for Sorption of Trivalent Actinides and Lanthanides
journal, September 2015

¹¹⁹ Sn MAS NMR Study of the Interaction of Probe Molecules with Sn-BEA: The Origin of Penta- and Hexacoordinated Tin Formation
journal, December 2016

Unmixing the NMR spectra of similar species – vive la différence
journal, January 2013

Synthesis and characterization of polymeric C18 stationary phases for liquid chromatography
journal, March 1984

Site-resolved 2H relaxation experiments in solid materials by global line-shape analysis of MAS NMR spectra
journal, July 2016

Dynamic Nuclear Polarization Surface Enhanced NMR Spectroscopy
journal, March 2013

Global least‐squares analysis of large, correlated spectral data sets and application to chemical kinetics and time‐resolved fluorescence
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One hundred fold overall sensitivity enhancements for Silicon-29 NMR spectroscopy of surfaces by dynamic nuclear polarization with CPMG acquisition
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Natural Abundance ¹⁷ O DNP Two-Dimensional and Surface-Enhanced NMR Spectroscopy
journal, June 2015

29Si and 17O (Q)CPMG-MAS solid-state NMR experiments as an optimum approach for half-integer nuclei having long T1 relaxation times
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Probing the Surface Structure of Divalent Transition Metals Using Surface Specific Solid-State NMR Spectroscopy
journal, February 2012

Kinetics of Cross-Polarization in Solid-State NMR: A Guide for Chemists
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Synthesis of ordered large pore SBA-15 spherical particles for adsorption of biomolecules
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Application of ¹¹⁹ Sn CPMG MAS NMR for Fast Characterization of Sn Sites in Zeolites with Natural ¹¹⁹ Sn Isotope Abundance
journal, March 2016

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journal, January 2015

Analysis of trivalent cation complexation to functionalized mesoporous silica using solid-state NMR spectroscopy
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Mesoporous Silica Nanoparticles Loaded with Surfactant: Low Temperature Magic Angle Spinning ¹³ C and ²⁹ Si NMR Enhanced by Dynamic Nuclear Polarization
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Organic layer formation and sorption of U( vi ) on acetamide diethylphosphonate-functionalized mesoporous silica
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Sensitivity-Enhanced Quadrupolar-Echo NMR of Half-Integer Quadrupolar Nuclei. Magnitudes and Relative Orientation of Chemical Shielding and Quadrupolar Coupling Tensors
journal, November 1997

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Surface-selective direct ¹⁷ O DNP NMR of CeO ₂ nanoparticles
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Constraints on aluminum and scandium substitution mechanisms in forsterite, periclase, and larnite: High-resolution NMR
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