Fast Motions of an Iridium Dihydride Complex in Aqueous Medium Revealed by NMR Relaxometry with High-resolution

Fast Motions of an Iridium Dihydride Complex in Aqueous Medium Revealed by NMR Relaxometry with High-resolution Научная публикация

Журнал

INEOS OPEN
ISSN: 2658-5618

Вых. Данные

Год: 2025, Том: 8, Номер: 1-3, Страницы: 42-44 Страниц : 3 DOI: 10.32931/io2547a

Ключевые слова

NMR, relaxation dispersion, correlation time, SABRE complex

Авторы

Kiryutin A.S. ¹ , Fishman N.N. ¹ , Yurkovskaya A.V. ¹

Организации

1	International Tomography Center, Siberian Branch of the Russian Academy of Sciences, ul. Institutskaya 3A, Novosibirsk, 630090 Russia

We have investigated correlation times in the iridium dihydride catalytic complex [Ir(IMes)(Pyeq)2(Pyax)H2]Cl in water, where it remains stable for days. T1-relaxation times of individual protons were measured across magnetic fields using NMR with fast field cycling. Above 4 Tesla, T1 time increased, indicating a transition from fast (ωτc < 1) to slow motion (ωτc > 1) regime. Fitting the experimental data to a local magnetic field fluctuation model provided site specific rotational correlation times with an average of 280 ps for the whole molecule.

Kiryutin A.S. , Fishman N.N. , Yurkovskaya A.V.
Fast Motions of an Iridium Dihydride Complex in Aqueous Medium Revealed by NMR Relaxometry with High-resolution
INEOS OPEN. 2025. V.8. N1-3. P.42-44. DOI: 10.32931/io2547a OpenAlex

Поступила в редакцию:	20 нояб. 2024 г.
Принята к публикации:	15 янв. 2025 г.
Опубликована в печати:	26 авг. 2025 г.

OpenAlex:

W4412697962

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