[2π+2π] Cycloaddition of Isocyanates to Uranium(IV) Imido Complexes for the Synthesis of U(IV) κ2-Ureato Compounds
Abstract

A new family of uranium(IV) imido complexes of the form Tp*2U(NR) (Tp* = hydrotris(3,5-dimethylpyrazolyl)borate; R = benzyl (Bn), para-tolyl (p-Tol), 2,6-diethylphenyl (detp), and 2,6-diisopropylphenyl (dipp)) have been generated by bibenzyl extrusion from Tp*2UBn. Tp*2U(NBn), Tp*2U(Np-Tol), and Tp*2U(Ndetp), along with previously reported Tp*2U(NPh) and Tp*2U(NAd) (Ad = 1-adamantyl), readily undergo [2π+2π] cycloaddition with isocyanates and isothiocyanates to generate κ2-ureato and κ2-thioureato derivatives, respectively. These new uranium(IV) complexes were characterized via multinuclear NMR, vibrational and electronic absorption spectroscopies, and, where possible, X-ray crystallography. The steric demands of the ligands were quantitatively assessed using computational modeling, and it was shown that cycloaddition only occurs for imido species where ligands occupy 90% or less of the coordination sphere.
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- Diana Perales, Shannon A. Ford, Sahan R. Salpage, Tyler S. Collins, Matthias Zeller, Kenneth Hanson, Suzanne C. Bart. Conversion of Trivalent Uranium Anilido to Tetravalent Uranium Imido Species via Oxidative Deprotonation. Inorganic Chemistry 2020, 59 (17) , 11910-11914. https://doi.org/10.1021/acs.inorgchem.0c01704
- Caleb J. Tatebe, Ellen M. Matson, Christopher L. Clark, John J. Kiernicki, Phillip E. Fanwick, Matthias Zeller, Suzanne C. Bart. Low- and Mid-Valent Uranium Species Supported by Phenyltris(oxazolinyl)borate Ligands. Organometallics 2020, 39 (2) , 353-360. https://doi.org/10.1021/acs.organomet.9b00793
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- John J. Kiernicki, Caleb J. Tatebe, Matthias Zeller, and Suzanne C. Bart . Tailoring the Electronic Structure of Uranium Mono(imido) Species through Ligand Variation. Inorganic Chemistry 2018, 57 (4) , 1870-1879. https://doi.org/10.1021/acs.inorgchem.7b02791
- Congcong Zhang, Pikun Yang, Enwei Zhou, Xuebin Deng, Guofu Zi, and Marc D. Walter . Reactivity of a Lewis Base Supported Thorium Terminal Imido Metallocene toward Small Organic Molecules. Organometallics 2017, 36 (23) , 4525-4538. https://doi.org/10.1021/acs.organomet.7b00212
- Tongyu Li, Dongwei Wang, Yi Heng, Guohua Hou, Guofu Zi, Marc D. Walter. Reactivity of a Lewis base-supported uranium terminal imido metallocene towards small molecules. Dalton Transactions 2023, 455 https://doi.org/10.1039/D3DT02165C
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- Paul J. Fischer. Polypyrazolylborates and Scorpionates. 2021, 428-504. https://doi.org/10.1016/B978-0-08-102688-5.00072-6
- Sascha T. Löffler, Karsten Meyer. Actinides. 2021, 471-521. https://doi.org/10.1016/B978-0-12-409547-2.14754-7
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- Caleb J. Tatebe, Tyler S. Collins, Grant Reed Barnett, Matthias Zeller, Suzanne C. Bart. Preparation of U(IV) κ1-amidinate complexes by nitrile metathesis. Polyhedron 2019, 158 , 1-7. https://doi.org/10.1016/j.poly.2018.10.042
- Frank T. Edelmann. Lanthanides and actinides: Annual survey of their organometallic chemistry covering the year 2017. Coordination Chemistry Reviews 2018, 370 , 129-223. https://doi.org/10.1016/j.ccr.2018.05.013
- Michael A. Boreen, John Arnold. Multiple Bonding in Actinide Chemistry. 2018, 1-18. https://doi.org/10.1002/9781119951438.eibc2535
- Caleb J. Tatebe, Sara A. Johnson, Matthias Zeller, Suzanne C. Bart. Generation of Tp*2U(N3) from a family of new uranium(III) alkyl complexes. Journal of Organometallic Chemistry 2018, 857 , 152-158. https://doi.org/10.1016/j.jorganchem.2017.09.013
- Kimberly C. Mullane, Thibault Cheisson, Eiko Nakamaru‐Ogiso, Brian C. Manor, Patrick J. Carroll, Eric J. Schelter. Reduction of Carbonyl Groups by Uranium(III) and Formation of a Stable Amide Radical Anion. Chemistry – A European Journal 2018, 24 (4) , 826-837. https://doi.org/10.1002/chem.201703396
- Caleb J. Tatebe, Kristen E. Gettys, Suzanne C. Bart. Reactivity of Actinide Imido Complexes. 2018, 1-42. https://doi.org/10.1016/bs.hpcre.2018.08.001