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Water-catalyzed iron-molybdenum carbyne formation in bimetallic acetylene transformation

Author

Listed:
  • Xiaofang Zhai

    (Beijing Normal University)

  • Minghui Xue

    (Shandong University)

  • Qiuting Zhao

    (Beijing Normal University)

  • Qiucui Zheng

    (Beijing Normal University)

  • Datong Song

    (University of Toronto)

  • Chen-Ho Tung

    (Shandong University)

  • Wenguang Wang

    (Beijing Normal University)

Abstract

Transition metal carbyne complexes are of fundamental importance in carbon-carbon bond formation, alkyne metathesis, and alkyne coupling reactions. Most reported iron carbyne complexes are stabilized by incorporating heteroatoms. Here we show the synthesis of bioinspired FeMo heterobimetallic carbyne complexes by the conversion of C2H2 through a diverse series of intermediates. Key reactions discovered include the reduction of a μ-η2:η2-C2H2 ligand with a hydride to produce a vinyl ligand (μ-η1:η2-CH = CH2), tautomerization of the vinyl ligand to a carbyne (μ-CCH3), and protonation of either the vinyl or the carbyne compound to form a hydrido carbyne heterobimetallic complex. Mechanistic studies unveil the pivotal role of H2O as a proton shuttle, facilitating the proton transfer that converts the vinyl group to a bridging carbyne.

Suggested Citation

  • Xiaofang Zhai & Minghui Xue & Qiuting Zhao & Qiucui Zheng & Datong Song & Chen-Ho Tung & Wenguang Wang, 2024. "Water-catalyzed iron-molybdenum carbyne formation in bimetallic acetylene transformation," Nature Communications, Nature, vol. 15(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:15:y:2024:i:1:d:10.1038_s41467-024-52116-9
    DOI: 10.1038/s41467-024-52116-9
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