New aspects of parahydrogen-induced polarization for C2—C3 hydrocarbons using metal complexes

New aspects of parahydrogen-induced polarization for C2—C3 hydrocarbons using metal complexes Full article

Journal

Russian Chemical Bulletin
ISSN: 1066-5285

Output data

Year: 2021, Volume: 70, Number: 12, Pages: 2382-2389 Pages count : 8 DOI: 10.1007/s11172-021-3357-2

Authors

Kovtunov K.V. ^1,2 , Burueva D.B. ^1,2 , Sviyazov S.V. ^1,2 , Salnikov O.G. ^1,2,3 , Goodson B.M. ⁴ , Chekmenev E.Y. ^5,6 , Koptyug I.V. ¹

Affiliations

1	International Tomography Center, Siberian Branch of the Russian Academy of Sciences, 3a ul. Institutskaya, 630090, Novosibirsk, Russia
2	Novosibirsk State University, 2 ul. Pirogova, 630090 Novosibirsk, Russian Federation
3	Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences, 5 prosp. Akad. Lavrentieva, 630090 Novosibirsk, Russian Federation
4	Southern Illinois University, Carbondale, Illinois, 62901, USA
5	Wayne State University, USA, Michigan, 48202, Detroit
6	Russian Academy of Sciences, 14 Leninsky prosp., 119991 Moscow, Russian Federation

The parahydrogen-induced polarization technique allows one to significantly enhance the NMR signal. Novel results on the parahydrogen-induced polarization of C2—C3 hydrocarbons using metal complexes are presented. Gaseous propane with the nuclear spin polarization level of at least 0.8% can be produced by bubbling parahydrogen through a solution of propylene and a homogeneous hydrogenation catalyst. Hydrogenation of acetylene with parahydrogen over Wilkinson’s catalyst can result in the formation of hyperpolarized ethylene. The shape of the NMR lines indicates that this reaction proceeds as a syn-addition of molecular hydrogen. The reactions of several ethylene complexes of rhodium and platinum with parahydrogen were studied. The [Rh(η2-C2H4)2Cl]2 complex reacts with parahydrogen to form hyperpolarized ethane, whereas [Pt(η2-C2H4)(PPh3)2] converts to the hyperpolarized dihydride complex cis-[Pt(H)2(PPh3)2].

Kovtunov K.V. , Burueva D.B. , Sviyazov S.V. , Salnikov O.G. , Goodson B.M. , Chekmenev E.Y. , Koptyug I.V.
New aspects of parahydrogen-induced polarization for C2—C3 hydrocarbons using metal complexes
Russian Chemical Bulletin. 2021. V.70. N12. P.2382-2389. DOI: 10.1007/s11172-021-3357-2 WOS Scopus OpenAlex

Ковтунов К.В. , Буруева Д.Б. , Свиязов С.В. , Сальников О.Г. , Гудсон Б.М. , Чекменев Э.Ю. , Коптюг И.В.
Новые аспекты индуцированной параводородом поляризации ядер для углеводородов С2—С3 с использованием металлокомплексов
Известия Академии наук. Серия химическая. 2021. №12. С.2382-2389.

Published print:

Jan 26, 2022

Web of science:	WOS:000749178900015
Scopus:	2-s2.0-85123539466
OpenAlex:	W4210524427

DB	Citing
Web of science	3
OpenAlex	4
Scopus	4