Exploring 129Xe NMR parameters for structural investigation of biomolecules: relativistic, solvent, and thermal Effects

27 October 2022, Version 1
This content is a preprint and has not undergone peer review at the time of posting.

Abstract

In recent years, the study of new probes has aroused great interest in the scientific community around the world. Therefore, in the present work, we present a potential candidate for a new spectroscopic probe, the Xe(CO)3(NNO) conjugated to 2-(4’-Aminophenyl) Benzothiazole complex, XeABT. For this proposal, chemical shift calculations at the DFT level were performed, thus, a factorial design was carried out in order to choose the best computational method. The best combination was the base function ZORA-def2-TZVP, with the functional PBE0 and considering the relativistic effects with the ZORA implementation. Our findings reveal that the 129Xe chemical shifts is affected by thermal and solvent effects and considering an enzymatic environment a significant decrease in δ(129Xe) values are observed, suggesting with the XeABT complex it may be a promising spectroscopic probe.

Keywords

129Xe
Relativistic effects
Probes
NMR
Biological systems

Comments

Comments are not moderated before they are posted, but they can be removed by the site moderators if they are found to be in contravention of our Commenting Policy [opens in a new tab] - please read this policy before you post. Comments should be used for scholarly discussion of the content in question. You can find more information about how to use the commenting feature here [opens in a new tab] .
This site is protected by reCAPTCHA and the Google Privacy Policy [opens in a new tab] and Terms of Service [opens in a new tab] apply.