A new class of (μ-η22-disulfido) dicopper complexes: Synthesis, characterization, and disulfido exchange

Eric C. Brown, Nermeen W. Aboelella, Anne M. Reynolds, Gabriel Aullón, Santiago Alvarez, William B Tolman

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Abstract

Rare examples of (μ-η22-disulfido)dicopper complexes have been prepared from Cu(I) and Cu(II) complexes of β-diketiminate and anilido-imine supporting ligands. A novel byproduct derived from sulfur functionalization of the methine position of a β-diketiminate ligand was identified. DFT calculations on [(LCu) 2X2] (L = β-diketiminate, X = O or S) complexes rationalize the absence of a bis(μ-sulfido)dicopper isomer, [Cu 2(μ-S)2]2+, in the synthetic reactions, yet predict that a [Cu2(μ-S)2]0 core is a stable product of 2-electron reduction of the [Cu2(μ-η 22-S2)]2+ unit. Exchange of the disulfido ligand was discovered upon reaction of a (μ-η2: η2-disulfido)dicopper complex with a Cu(I) reagent.

Original languageEnglish (US)
Pages (from-to)3335-3337
Number of pages3
JournalInorganic chemistry
Volume43
Issue number11
DOIs
StatePublished - May 31 2004

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    Brown, E. C., Aboelella, N. W., Reynolds, A. M., Aullón, G., Alvarez, S., & Tolman, W. B. (2004). A new class of (μ-η22-disulfido) dicopper complexes: Synthesis, characterization, and disulfido exchange. Inorganic chemistry, 43(11), 3335-3337. https://doi.org/10.1021/ic049811k