Temperature dependence of the degenerate electron exchange between guanosine-5′-monophosphate cation and its short-lived radical dication in aqueous solution

Temperature dependence of the degenerate electron exchange between guanosine-5′-monophosphate cation and its short-lived radical dication in aqueous solution Full article

Journal

Russian Chemical Bulletin
ISSN: 1066-5285

Output data

Year: 2021, Volume: 70, Number: 12, Pages: 2375-2381 Pages count : 7 DOI: 10.1007/s11172-021-3356-3

Tags

chemically induced dynamic nuclear polarization (CIDNP), guanosine, short lived radicals, degenerate electron exchange, Marcus theory

Authors

Geniman M.P. ^1,2 , Panov M.S. ¹ , Morozova O.B. ¹ , Kiryutin A.S. ¹ , Fishman N.N. ¹ , Yurkovskaya A.V. ¹

Affiliations

1	International Tomography Center, Siberian Branch of the Russian Academy of Sciences, 3a ul. Institutskaya, 630090 Novosibirsk, Russian Federation.
2	bNovosibirsk State University, 2 ul. Pirogova, 630090 Novosibirsk, Russian Federation

The temperature dependence of the degenerate electron exchange (DEE) between the guanosine-5′-monophosphate cation and its short-lived radical dication in an aqueous solution was studied by the chemically induced dynamic nuclear polarization (CIDNP) method with the microsecond time resolution. Based on the simulation of the CIDNP kinetic data, the rate constant values of the DEE kex at four temperatures were determined. Using the obtained rate constant values of the DEE reaction the parameters of the dependence $${k_{{\rm{ex}}}}(T) = (A/\sqrt T ){\rm{exp}}[ - \lambda /(4RT)]$$were determined: lnA = 29.2±1.0, λ = 0.79±0.11 eV.

Geniman M.P. , Panov M.S. , Morozova O.B. , Kiryutin A.S. , Fishman N.N. , Yurkovskaya A.V.
Temperature dependence of the degenerate electron exchange between guanosine-5′-monophosphate cation and its short-lived radical dication in aqueous solution
Russian Chemical Bulletin. 2021. V.70. N12. P.2375-2381. DOI: 10.1007/s11172-021-3356-3 OpenAlex

Гениман М.П. , Панов М.С. , Морозова О.Б. , Кирютин А.С. , Фишман Н.Н. , Юрковская А.В.
Температурная зависимость реакции вырожденного электронного обмена между катионом гуанозин-5´-монофосфата и его короткоживущим дикатион-радикалом в водном растворе
Известия Академии наук. Серия химическая. 2021. Т.12. С.2375-2381.

Submitted:	May 19, 2021
Accepted:	Jul 9, 2021
Published print:	Dec 1, 2021
Published online:	Jan 26, 2022

OpenAlex:

W4210565121

DB	Citing
OpenAlex	4