Synthesis and characterization of a uranium(II) monoarene complex supported by δ backbonding.

la Pierre HS, Scheurer A, Heinemann FW, Hieringer W, Meyer K (2014)


Publication Status: Published

Publication Type: Journal article

Publication year: 2014

Journal

Book Volume: 53

Pages Range: 7158-7162

Journal Issue: 28

DOI: 10.1002/anie.201402050

Abstract

The low-temperature (<-35 °C) reduction of the trivalent uranium monoarene complex [{((Ad,Me) ArO)3 mes}U] (1), with potassium spheres in the presence of a slight excess of 2.2.2-cryptand, affords the quantitative conversion of 1 into the uranium(II) monoarene complex [K(2.2.2-crypt)][(((Ad,Me) ArO)3 mes)U] (1-K). The molecular and electronic structure of 1-K was established experimentally by single-crystal X-ray diffraction, variable-temperature (1) H NMR and X-band EPR spectroscopy, solution-state and solid-state magnetism studies, and optical absorption spectroscopy. The electronic structure of the complex was further investigated by DFT calculations. The complete body of evidence confirms that 1-K is a uranium(II) monoarene complex with a 5f (4) electronic configuration supported by δ backbonding and that the nearly reversible, room-temperature reduction observed for 1 at -2.495 V vs. Fc/Fc(+) is principally metal-centered.

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How to cite

APA:

la Pierre, H.S., Scheurer, A., Heinemann, F.W., Hieringer, W., & Meyer, K. (2014). Synthesis and characterization of a uranium(II) monoarene complex supported by δ backbonding. Angewandte Chemie International Edition, 53(28), 7158-7162. https://dx.doi.org/10.1002/anie.201402050

MLA:

la Pierre, Henry Storms, et al. "Synthesis and characterization of a uranium(II) monoarene complex supported by δ backbonding." Angewandte Chemie International Edition 53.28 (2014): 7158-7162.

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