Inorganic clusters with a [Fe2MoOS3] core—a functional model for acetylene reduction by nitrogenases

April 9, 2020

Title

Inorganic clusters with a [Fe2MoOS3] core—a functional model for acetylene reduction by nitrogenases

Author

Koji Yoshimoto, Takeshi Yatabe, Takahiro Matsumoto, Viet-Ha Tran, Andrew Robertson, Hidetaka Nakai, Koichiro Asazawa, Hirohisa Tanakaad, Seiji Ogo

Year

2016

Journal

Dalton Transactions

Abstract

We report the first example of a wholly inorganic mimic of a part of the FeMoco active centre of nitrogenases. We detail the synthesis, characterisation and reactivity of two related, transient hydride-containing inorganic clusters, a dihydride complex and a vinyl monohydride complex, which bear the [Fe2MoOS3] portion of FeMoco. The dihydride complex is capable of reducing acetylene to ethylene via the vinyl monohydride complex. In the reaction cycle, a transient low-valent complex was generated by the reductive elimination of H2 or ethylene from dihydride or vinyl monohydride complexes, respectively.

We report the first example of a wholly inorganic mimic of a part of the FeMoco active centre of nitrogenases. We detail the synthesis, characterisation and reactivity of two related, transient hydride-containing inorganic clusters, a dihydride complex and a vinyl monohydride complex, which bear the [Fe2MoOS3] portion of FeMoco. The dihydride complex is capable of reducing acetylene to ethylene via the vinyl monohydride complex. In the reaction cycle, a transient low-valent complex was generated by the reductive elimination of H2 or ethylene from dihydride or vinyl monohydride complexes, respectively.

Instrument

RMP-510

Keywords

Probe Raman, inorganic clusters, nitrogenases