Uranium(IV) terminal hydrosulfido and sulfido complexes: insights into the nature of the uranium-sulfur bond

Rosenzweig M, Scheurer A, Lamsfus CA, Heinemann FW, Maron L, Andrez J, Mazzanti M, Meyer K (2016)


Publication Status: Published

Publication Type: Journal article

Publication year: 2016

Journal

Publisher: ROYAL SOC CHEMISTRY

Book Volume: 7

Pages Range: 5857-5866

Journal Issue: 9

DOI: 10.1039/c6sc00677a

Abstract

Herein, we report the synthesis and characterization of a series of terminal uranium(IV) hydrosulfido and sulfido complexes, supported by the hexadentate, tacn-based ligand framework ((ArO)-Ar-Ad,Me)(3)tacn(3-) (= trianion of 1,4,7-tris(3-(1-adamantyl)-5-methyl-2-hydroxybenzyl)-1,4,7-triazacyclononane). The hydrosulfido complex [(((ArO)-Ar-Ad,Me)(3)tacn) U-SH] (2) is obtained from the reaction of H2S with the uranium(III) starting material [(((ArO)-Ar-Ad,Me)(3)tacn) U] (1) in THF. Subsequent deprotonation with potassium bis(trimethylsilyl) amide yields the mononuclear uranium(IV) sulfido species in good yields. With the aid of dibenzo-18-crown-6 and 2.2.2-cryptand, it was possible to isolate a terminal sulfido species, capped by the potassium counter ion, and a "free" terminal sulfido species with a well separated cation/anion pair. Spectroscopic and computational analyses provided insights into the nature of the uranium-sulfur bond in these complexes.

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APA:

Rosenzweig, M., Scheurer, A., Lamsfus, C.A., Heinemann, F.W., Maron, L., Andrez, J.,... Meyer, K. (2016). Uranium(IV) terminal hydrosulfido and sulfido complexes: insights into the nature of the uranium-sulfur bond. Chemical Science, 7(9), 5857-5866. https://dx.doi.org/10.1039/c6sc00677a

MLA:

Rosenzweig, Michael, et al. "Uranium(IV) terminal hydrosulfido and sulfido complexes: insights into the nature of the uranium-sulfur bond." Chemical Science 7.9 (2016): 5857-5866.

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