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High-Resolution NMR of the Hydrogenation Reaction with Parahydrogen in an Inhomogeneous Magnetic Field. / Kononenko, Elizaveta S.; Skovpin, Ivan V.; Kovtunova, Larisa M. et al.

In: Journal of Physical Chemistry Letters, 01.2025, p. 650-657.

Research output: Contribution to journal › Article › peer-review

Harvard

Kononenko, ES, Skovpin, IV, Kovtunova, LM & Koptyug, IV 2025, 'High-Resolution NMR of the Hydrogenation Reaction with Parahydrogen in an Inhomogeneous Magnetic Field', Journal of Physical Chemistry Letters, pp. 650-657. https://doi.org/10.1021/acs.jpclett.4c03154

APA

Kononenko, E. S., Skovpin, I. V., Kovtunova, L. M., & Koptyug, I. V. (2025). High-Resolution NMR of the Hydrogenation Reaction with Parahydrogen in an Inhomogeneous Magnetic Field. Journal of Physical Chemistry Letters, 650-657. https://doi.org/10.1021/acs.jpclett.4c03154

Vancouver

Kononenko ES, Skovpin IV, Kovtunova LM, Koptyug IV. High-Resolution NMR of the Hydrogenation Reaction with Parahydrogen in an Inhomogeneous Magnetic Field. Journal of Physical Chemistry Letters. 2025 Jan;650-657. doi: 10.1021/acs.jpclett.4c03154

Author

Kononenko, Elizaveta S. ; Skovpin, Ivan V. ; Kovtunova, Larisa M. et al. / High-Resolution NMR of the Hydrogenation Reaction with Parahydrogen in an Inhomogeneous Magnetic Field. In: Journal of Physical Chemistry Letters. 2025 ; pp. 650-657.

BibTeX

@article{caca66efb1a040a687ea980ea80e9165,
title = "High-Resolution NMR of the Hydrogenation Reaction with Parahydrogen in an Inhomogeneous Magnetic Field",
abstract = "Nuclear magnetic resonance is extremely attractive for operando studies of chemical reactors. However, the heterogeneous catalyst particles placed inside an NMR probe greatly affect the uniformity of the magnetic field. This problem is especially acute when studying heterogeneous hydrogenation processes using parahydrogen. Despite the increased sensitivity due to hyperpolarization, under conditions of a strong heterogeneity of the magnetic field, the antiphase nature of the NMR signals leads to a partial or even a complete loss of spectroscopic information due to significant NMR signal broadening. The use of intramolecular multiple-quantum coherences in 2D NMR allows one to circumvent this problem. We used the COSY pulse sequence to acquire 2D NMR spectra of the reaction mixture upon propene hydrogenation with parahydrogen. The selection of double-quantum coherences in the resulting 2D NMR spectrum allowed us to obtain a highly resolved NMR spectrum under conditions of severe inhomogeneity of the magnetic field caused by the presence of catalyst granules.",
author = "Kononenko, {Elizaveta S.} and Skovpin, {Ivan V.} and Kovtunova, {Larisa M.} and Koptyug, {Igor V.}",
year = "2025",
month = jan,
doi = "10.1021/acs.jpclett.4c03154",
language = "English",
pages = "650--657",
journal = "Journal of Physical Chemistry Letters",
issn = "1948-7185",
publisher = "American Chemical Society",

}

RIS

TY - JOUR

T1 - High-Resolution NMR of the Hydrogenation Reaction with Parahydrogen in an Inhomogeneous Magnetic Field

AU - Kononenko, Elizaveta S.

AU - Skovpin, Ivan V.

AU - Kovtunova, Larisa M.

AU - Koptyug, Igor V.

PY - 2025/1

Y1 - 2025/1

N2 - Nuclear magnetic resonance is extremely attractive for operando studies of chemical reactors. However, the heterogeneous catalyst particles placed inside an NMR probe greatly affect the uniformity of the magnetic field. This problem is especially acute when studying heterogeneous hydrogenation processes using parahydrogen. Despite the increased sensitivity due to hyperpolarization, under conditions of a strong heterogeneity of the magnetic field, the antiphase nature of the NMR signals leads to a partial or even a complete loss of spectroscopic information due to significant NMR signal broadening. The use of intramolecular multiple-quantum coherences in 2D NMR allows one to circumvent this problem. We used the COSY pulse sequence to acquire 2D NMR spectra of the reaction mixture upon propene hydrogenation with parahydrogen. The selection of double-quantum coherences in the resulting 2D NMR spectrum allowed us to obtain a highly resolved NMR spectrum under conditions of severe inhomogeneity of the magnetic field caused by the presence of catalyst granules.

AB - Nuclear magnetic resonance is extremely attractive for operando studies of chemical reactors. However, the heterogeneous catalyst particles placed inside an NMR probe greatly affect the uniformity of the magnetic field. This problem is especially acute when studying heterogeneous hydrogenation processes using parahydrogen. Despite the increased sensitivity due to hyperpolarization, under conditions of a strong heterogeneity of the magnetic field, the antiphase nature of the NMR signals leads to a partial or even a complete loss of spectroscopic information due to significant NMR signal broadening. The use of intramolecular multiple-quantum coherences in 2D NMR allows one to circumvent this problem. We used the COSY pulse sequence to acquire 2D NMR spectra of the reaction mixture upon propene hydrogenation with parahydrogen. The selection of double-quantum coherences in the resulting 2D NMR spectrum allowed us to obtain a highly resolved NMR spectrum under conditions of severe inhomogeneity of the magnetic field caused by the presence of catalyst granules.

UR - https://www.mendeley.com/catalogue/38fcf541-2b43-3db8-9355-64a5d0b45498/

UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85214323476&origin=inward&txGid=9f0a990a2382173f27fa0e16e009bc2c

U2 - 10.1021/acs.jpclett.4c03154

DO - 10.1021/acs.jpclett.4c03154

M3 - Article

SP - 650

EP - 657

JO - Journal of Physical Chemistry Letters

JF - Journal of Physical Chemistry Letters

SN - 1948-7185

ER -

ID: 62790830