Brownbill, Nick J., Reiner Sebastian Sprick, Baltasar Bonillo, Shane Pawsey, Fabien Aussenac, Alistair J. Fielding, Andrew I. Cooper, and Frédéric Blanc. “Structural Elucidation of Amorphous Photocatalytic Polymers from Dynamic Nuclear Polarization Enhanced Solid State NMR.” Macromolecules 51, no. 8 (April 24, 2018): 3088–96.
Dynamic nuclear polarization (DNP) solid-state nuclear magnetic resonance (NMR) offers a recent approach to dramatically enhance NMR signals and has enabled detailed structural information to be obtained in a series of amorphous photocatalytic copolymers of alternating pyrene and benzene monomer units, the structures of which cannot be reliably established by other spectroscopic or analytical techniques. Large 13C cross-polarization (CP) magic angle spinning (MAS) signal enhancements were obtained at high magnetic fields (9.4- 14.1 T) and low temperature (110-120 K), permitting the acquisition of a 13C INADEQUATE spectrum at natural abundance and facilitating complete spectral assignments, including when small amounts of specific monomers are present. The high 13C signal-to-noise ratios obtained are harnessed to record quantitative multiple contact CP NMR data, used to determine the polymers’ composition. This correlates well with the putative pyrene:benzene stoichiometry from the monomer feed ratio, enabling their structures to be understood.
Chromophore Distortions in Photointermediates of Proteorhodopsin Visualized by Dynamic Nuclear Polarization-Enhanced Solid-State NMR #DNPNMR #NMR #SSNMR
From The DNP-NMR Blog:
Chromophore Distortions in Photointermediates of Proteorhodopsin Visualized by Dynamic Nuclear Polarization-Enhanced Solid-State NMR #DNPNMR #NMR #SSNMR
p.p1 {margin: 0.0px 0.0px 0.0px 36.0px; text-indent: -36.0px; font: 12.0px Helvetica}
Mehler, M., et al., Chromophore Distortions in Photointermediates of Proteorhodopsin Visualized by Dynamic Nuclear Polarization-Enhanced Solid-State NMR. J. Am. Chem. Soc., 2017. 139(45): p. 16143-16153.
https://www.ncbi.nlm.nih.gov/pubmed/29027800
nmrlearner
News from NMR blogs
0
01-23-2018 02:57 AM
Analysis of Molecular Orientation in Organic Semiconducting Thin Films Using Static Dynamic Nuclear Polarization Enhanced Solid-State NMR Spectroscopy #DNPNMR
From The DNP-NMR Blog:
Analysis of Molecular Orientation in Organic Semiconducting Thin Films Using Static Dynamic Nuclear Polarization Enhanced Solid-State NMR Spectroscopy #DNPNMR
p.p1 {margin: 0.0px 0.0px 0.0px 36.0px; text-indent: -36.0px; font: 12.0px Helvetica}
Suzuki, K., et al., Analysis of Molecular Orientation in Organic Semiconducting Thin Films Using Static Dynamic Nuclear Polarization Enhanced Solid-State NMR Spectroscopy. Angew. Chem. Int. Ed., 2017. 56(47): p. 14842-14846.
https://www.ncbi.nlm.nih.gov/pubmed/28994190
nmrlearner
News from NMR blogs
0
01-11-2018 03:11 AM
Atomic-Level Structure Characterization of Biomass Pre- and Post-Lignin Treatment by Dynamic Nuclear Polarization-Enhanced Solid-State NMR #DNPNMR
From The DNP-NMR Blog:
Atomic-Level Structure Characterization of Biomass Pre- and Post-Lignin Treatment by Dynamic Nuclear Polarization-Enhanced Solid-State NMR #DNPNMR
p.p1 {margin: 0.0px 0.0px 0.0px 36.0px; text-indent: -36.0px; font: 12.0px Helvetica}
Perras, F.A., et al., Atomic-Level Structure Characterization of Biomass Pre- and Post-Lignin Treatment by Dynamic Nuclear Polarization-Enhanced Solid-State NMR. The Journal of Physical Chemistry A, 2017. 121(3): p. 623-630.
http://dx.doi.org/10.1021/acs.jpca.6b11121
Improved Structural Elucidation of Synthetic Polymers by Dynamic Nuclear Polarization Solid-State NMR Spectroscopy
From The DNP-NMR Blog:
Improved Structural Elucidation of Synthetic Polymers by Dynamic Nuclear Polarization Solid-State NMR Spectroscopy
Ouari, O., et al., Improved Structural Elucidation of Synthetic Polymers by Dynamic Nuclear Polarization Solid-State NMR Spectroscopy. ACS Macro Letters, 2013. 2(8): p. 715-719.
http://dx.doi.org/10.1021/mz4003003
nmrlearner
News from NMR blogs
0
09-19-2013 02:19 PM
Solid-state NMR enhanced by dynamic nuclear polarization as a novel tool for ribosome structural biology
From The DNP-NMR Blog:
Solid-state NMR enhanced by dynamic nuclear polarization as a novel tool for ribosome structural biology
Gelis, I., et al., Solid-state NMR enhanced by dynamic nuclear polarization as a novel tool for ribosome structural biology. J. Biomol. NMR, 2013. 56(2): p. 85-93.
http://dx.doi.org/10.1007/s10858-013-9721-2
Structural Elucidation of Amorphous Photocatalytic Polymers from Dynamic Nuclear Polarization Enhanced Solid State NMR #DNPNMR
Linear Mode
