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Issue 26, 2020
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Benzenedithiolate-bridged MoFe complexes: structures, oxidation states, and reactivities

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Abstract

Two benzendithiolate-bridged MoFe complexes, [(Me3P)2(CO)2Mo(μ-S2C6H4)Fe(CO)3] (1) and [(Me3P)(CO)3Mo(μ-S2C6H4)Fe(CO)3] (2), were synthesized by reacting [Mo(S2C6H4)(CO)2(PMe3)2] (3) with Fe(CO)5. Each complex has a direct Mo–Fe bond that is supported by a bridging benzenedithiolate ligand and a semi-bridging carbonyl ligand as elucidated by single-crystal X-ray diffractometry. The structural data and differences in reactivity of these complexes suggest that monophosphine complex 2 is formed via diphosphine complex 1. The reaction of 2 with PMe3 gives the diiron bis(dithiolate) complex, [Fe(S2C6H4)(CO)2(PMe3)]2 (4), rather than 1. 57Fe Mössbauer and X-ray photoelectron spectroscopy studies reveal the oxidation states of the metal centers in 2 to be Fe0 and MoII.

Graphical abstract: Benzenedithiolate-bridged MoFe complexes: structures, oxidation states, and reactivities

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Article information


Submitted
20 Apr 2020
Accepted
17 Jun 2020
First published
17 Jun 2020

Dalton Trans., 2020,49, 9048-9056
Article type
Paper

Benzenedithiolate-bridged MoFe complexes: structures, oxidation states, and reactivities

S. Tsukada, T. Abe, N. Abe, S. Nakashima, K. Yamamoto and T. Gunji, Dalton Trans., 2020, 49, 9048
DOI: 10.1039/D0DT01428A

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