Single‐Scan Diffusion‐Ordered NMR Spectroscopy of SABRE‐Hyperpolarized Mixtures
Autor: | Jean-Nicolas Dumez, Patrick Berthault, Ludmilla Guduff, Gaspard Huber, Carine van Heijenoort |
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Přispěvatelé: | Institut de Chimie des Substances Naturelles (ICSN), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Structure et Dynamique par Résonance Magnétique (LCF) (LSDRM), Nanosciences et Innovation pour les Matériaux, la Biomédecine et l'Energie (ex SIS2M) (NIMBE UMR 3685), Institut Rayonnement Matière de Saclay (IRAMIS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut Rayonnement Matière de Saclay (IRAMIS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), ANR-16-CE29-0012,SENSOR,Spectroscopie RMN de réactions organiques par codage spatial(2016), Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Institut Rayonnement Matière de Saclay (IRAMIS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC) |
Rok vydání: | 2019 |
Předmět: |
Materials science
02 engineering and technology 010402 general chemistry Spin isomers of hydrogen 01 natural sciences Spectral line [CHIM.ANAL]Chemical Sciences/Analytical chemistry Molecule Hyperpolarization (physics) Physical and Theoretical Chemistry Spectral resolution Stable isotope ratio diffusion NMR tube [CHIM.MATE]Chemical Sciences/Material chemistry Nuclear magnetic resonance spectroscopy 021001 nanoscience & nanotechnology NMR Atomic and Molecular Physics and Optics 0104 chemical sciences analytical methods Chemical physics para-hydrogen [CHIM.OTHE]Chemical Sciences/Other 0210 nano-technology spatially encoded experiments |
Zdroj: | ChemPhysChem ChemPhysChem, 2018, 20, pp.392-398. ⟨10.1002/cphc.201800983⟩ ChemPhysChem, Wiley-VCH Verlag, 2018, 20, pp.392-398 ChemPhysChem, Wiley-VCH Verlag, 2019, 20 (3), pp.392-398. ⟨10.1002/cphc.201800983⟩ |
ISSN: | 1439-7641 1439-4235 |
DOI: | 10.1002/cphc.201800983 |
Popis: | International audience; The analysis of complex mixtures of dissolved molecules is a major challenge, especially for systems that gradually evolve, e. g., in the course of a chemical reaction or in the case of chemical instability. 1D NMR is a fast and non‐invasive method suitable for detailed molecular analysis, though of low sensitivity. Moreover, the spectral resolution of proton, the most commonly used and most sensitive stable isotope in NMR, is also quite limited. Spatially encoded (SPEN) experiments aim at creating in one acquisition a 2D data set by simultaneously performing different 1D sub‐experiments on different slices of the NMR tube, at the price of an extra loss of sensitivity. Choosing translational diffusion coefficients as the additional dimension (the so‐called DOSY approach) helps to recover proton spectra of each molecule in a mixture. The sensitivity limitation of SPEN NMR can, on the other hand, be addressed with hyperpolarization methods. Within hyperpolarization methods, signal amplification by reversible exchange (SABRE), based on parahydrogen, is the cheapest and the easiest one to set up, and allows multi‐shot experiments. Here we show that the spectra of a mixture's components at millimolar concentration are resolved in few seconds by combining the SABRE, SPEN and DOSY concepts. |
Databáze: | OpenAIRE |
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