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  Teaching the Cummins Complex Heterodimerization: Formation of Unorthodox Heteroleptic X3MoMoY3 Dimers with Ultralong Metal-Metal Triple Bonds

Rütter, D., Nöthling, N., Leutzsch, M., & Fürstner, A. (2024). Teaching the Cummins Complex Heterodimerization: Formation of Unorthodox Heteroleptic X3MoMoY3 Dimers with Ultralong Metal-Metal Triple Bonds. ChemRxiv: the Preprint Server for Chemistry. doi:10.26434/chemrxiv-2024-00cnb.

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 Creators:
Rütter, Daniel1, Author           
Nöthling, Nils2, Author           
Leutzsch, Markus3, Author           
Fürstner, Alois1, Author           
Affiliations:
1Research Department Fürstner, Max-Planck-Institut für Kohlenforschung, Max Planck Society, ou_1445584              
2Service Department Lehmann (EMR), Max-Planck-Institut für Kohlenforschung, Max Planck Society, ou_1445625              
3Service Department Farès (NMR), Max-Planck-Institut für Kohlenforschung, Max Planck Society, ou_1445623              

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Free keywords: metal-metal bonding; 95Mo NMR; Mo(3+); dimolybdenum complexes
 Abstract: Attempts to stabilize mononuclear trigonal-planar Mo(+3) complexes by (tripodal) silanolates or alkoxides, which had recently been shown to synergize exceedingly well with high valent molybdenum or tungsten alkylidynes, afforded unsymmetrical dimolybdenum complexes of the general type [X3MoMoY3]; not only is this ligand pattern unprece-dented, but these dimers incorporate the intact Cummins complex [(tBu)(Ar)N]3Mo (Ar = 3,5-dimethylphenyl), which is famous for not engaging in metal-metal triple bonding otherwise. The remarkable ease of heterodimerization likely reflects a pronounced kinetic selectivity. The new complexes were characterized by crystallographic and spectroscopic means; they show highly deshielded 95Mo NMR signals and comprise unusually long yet robust MoMo bonds.

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Language(s): eng - English
 Dates: 2024-02-14
 Publication Status: Published online
 Pages: 8
 Publishing info: -
 Table of Contents: -
 Rev. Type: No review
 Identifiers: DOI: 10.26434/chemrxiv-2024-00cnb
 Degree: -

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Title: ChemRxiv : the Preprint Server for Chemistry
  Other : ChemRxiv
Source Genre: Journal
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Publ. Info: Washington, DC; Frankfurt am Main; Cambridge, London : ACS, GDCh, Royal Society of Chemistry
Pages: - Volume / Issue: - Sequence Number: - Start / End Page: - Identifier: ZDB: 2949894-7
CoNE: https://pure.mpg.de/cone/journals/resource/2949894-7