Fast Motions of an Iridium Dihydride Complex in Aqueous Medium Revealed by NMR Relaxometry with High-resolution Full article
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INEOS OPEN
ISSN: 2658-5618 |
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| Output data | Year: 2025, Volume: 8, Number: 1-3, Pages: 42-44 Pages count : 3 DOI: 10.32931/io2547a | ||
| Tags | NMR, relaxation dispersion, correlation time, SABRE complex | ||
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Abstract:
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.
Cite:
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
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
Dates:
| Submitted: | Nov 20, 2024 |
| Accepted: | Jan 15, 2025 |
| Published print: | Aug 26, 2025 |
Identifiers:
| OpenAlex: | W4412697962 |
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