Hyperpolarized NMR Spectroscopy: d‐DNP, PHIP, and SABRE Techniques

KV Kovtunov, EV Pokochueva… - Chemistry–An Asian …, 2018 - Wiley Online Library
The intensity of NMR signals can be enhanced by several orders of magnitude by using
various techniques for the hyperpolarization of different molecules. Such approaches can …

Heterogeneous Catalysis and Parahydrogen‐Induced Polarization

EV Pokochueva, DB Burueva, OG Salnikov… - …, 2021 - Wiley Online Library
Parahydrogen‐induced polarization with heterogeneous catalysts (HET‐PHIP) has been a
subject of extensive research in the last decade since its first observation in 2007. While …

Cobalt-catalyzed and Lewis acid-assisted nitrile hydrogenation to primary amines: a combined effort

K Tokmic, BJ Jackson, A Salazar… - Journal of the …, 2017 - ACS Publications
The selective hydrogenation of nitriles to primary amines using a bench-stable cobalt
precatalyst under 4 atm of H2 is reported herein. The catalyst precursor was reduced in situ …

Understanding heterogeneous catalytic hydrogenation by parahydrogen-induced polarization NMR spectroscopy

W Wang, Q Wang, J Xu, F Deng - ACS Catalysis, 2023 - ACS Publications
Parahydrogen-induced polarization (PHIP) is an NMR hyperpolarization technique with the
ability to increase the NMR sensitivity by serval orders. The generation of hyperpolarization …

Synergy of Ru and Ir in the electrohydrogenation of toluene to methylcyclohexane on a ketjenblack-supported Ru-Ir alloy cathode

Y Inami, H Ogihara, S Nagamatsu, K Asakura… - ACS …, 2019 - ACS Publications
An organic hydride system based on hydrogenation/dehydrogenation of toluene (TL)/
methylcyclohexane (MCH) has been studied as a hydrogen storage technology …

Catalytic hydrogenation with parahydrogen: a bridge from homogeneous to heterogeneous catalysis

KV Kovtunov, OG Salnikov, IV Skovpin… - Pure and Applied …, 2020 - degruyter.com
One of the essential themes in modern catalysis is that of bridging the gap between its
homogeneous and heterogeneous counterparts to combine their individual advantages and …

Aqueous, Heterogeneous para-Hydrogen-Induced 15N Polarization

LB Bales, KV Kovtunov, DA Barskiy… - The Journal of …, 2017 - ACS Publications
The successful transfer of para-hydrogen-induced polarization to 15N spins using
heterogeneous catalysts in aqueous solutions was demonstrated. Hydrogenation of a …

Pairwise hydrogen addition in the selective semihydrogenation of alkynes on silica-supported Cu catalysts

OG Salnikov, HJ Liu, A Fedorov, DB Burueva… - Chemical …, 2017 - pubs.rsc.org
Mechanistic insight into the semihydrogenation of 1-butyne and 2-butyne on Cu
nanoparticles supported on partially dehydroxylated silica (Cu/SiO2-700) was obtained …

13C NMR Signal Enhancement Using Parahydrogen-Induced Polarization Mediated by a Cobalt Hydrogenation Catalyst

K Tokmic, RB Greer, L Zhu, AR Fout - Journal of the American …, 2018 - ACS Publications
The use of a cobalt-based catalyst for the generation of hyperpolarized 13C NMR
resonances by para hydrogenation of ethyl acrylate is presented herein. Comparisons of the …

Parahydrogen-induced polarization in gas-phase heterogeneous hydrogenation of epoxides

OG Salnikov, EV Pokochueva… - The Journal of …, 2023 - ACS Publications
Hydrogenation of epoxides is a reaction of both fundamental and practical importance.
Herein, gas-phase heterogeneous hydrogenation of saturated and unsaturated epoxides …