Peer-reviewedCC BYInorganic chemistry
Solution Spectroscopic Analysis of Ligand Exchange in Uranium Mono-Oxo Complexes.
4 affiliations
- 1School of Chemistry & Biochemistry, Georgia Institute of Technology, Atlanta, Georgia30332, United States.
- 2Department of Chemistry, The University of Iowa, Iowa City, Iowa52242, United States.
- 3Nuclear and Radiological Engineering and Medical Physics Program in the School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, Georgia30332, United States.
- 4Physical Sciences Division, Pacific Northwest National Laboratory, Richland, Washington99352, United States.
Abstract
Four uranium mono-oxo imidophosphorane complexes with a closed set of systematically changed substituents (pyrrolidine vs piperidine and introduction of one tert-butyl group) are presented. All complexes exhibit an inverse trans-influence (ITI). The rapid exchange of axial and equatorial ligands at room temperature, the unique 31P nuclear magnetic resonance (NMR) handle of the ligands, and the complexes' overall closed-shell singlet ground state facilitate the determination of ligand-exchange barriers via variable-temperature (VT) and exchange spectroscopy (EXSY) NMR. Computational analysis delineates electronic and steric contributions to the experimentally determined exchange barriers.
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BibTeX
@article{ressnik2026solution,
title = {{Solution Spectroscopic Analysis of Ligand Exchange in Uranium Mono-Oxo Complexes.}},
author = {Florian Ressnik and Tyler-Rayne Nero and Maximilian G Bernbeck and Johannes Leisen and Bess Vlaisavljevich and Julie E Niklas and Henry S La Pierre},
journal = {Inorganic chemistry},
year = {2026},
month = oct,
doi = {10.1021/acs.inorgchem.6c03607},
url = {https://europepmc.org/article/MED/42895408},
note = {CC BY},
}
RIS
TY - JOUR
TI - Solution Spectroscopic Analysis of Ligand Exchange in Uranium Mono-Oxo Complexes.
AU - Florian Ressnik
AU - Tyler-Rayne Nero
AU - Maximilian G Bernbeck
AU - Johannes Leisen
AU - Bess Vlaisavljevich
AU - Julie E Niklas
AU - Henry S La Pierre
PY - 2026
DA - 2026/10/01
JO - Inorganic chemistry
DO - 10.1021/acs.inorgchem.6c03607
UR - https://europepmc.org/article/MED/42895408
AB - Four uranium mono-oxo imidophosphorane complexes with a closed set of systematically changed substituents (pyrrolidine vs piperidine and introduction of one tert-butyl group) are presented. All complexes exhibit an inverse trans-influence (ITI). The rapid exchange of axial and equatorial ligands at room temperature, the unique 31P nuclear magnetic resonance (NMR) handle of the ligands, and the complexes' overall closed-shell singlet ground state facilitate the determination of ligand-exchange barriers via variable-temperature (VT) and exchange spectroscopy (EXSY) NMR. Computational analysis delineates electronic and steric contributions to the experimentally determined exchange barriers.
SN - 0020-1669
SN - 1520-510X
ER -