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A Monometallic Bis(cyaphido) Complex

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posted on 2024-05-14, 13:46 authored by Madeleine C Levis, Monte L Helm, John FC Turner, Ian CrossleyIan Crossley

The first example of a bis(cyaphido) complex, trans‐[Ru(dppe)2(CºP)2], is described, unequivocally demonstrating the synthetic accessibility and stability of complexes that feature more than one cyaphido ligand.  Synthesis is achieved from the precedent cation [Ru(dppe)2(CΞP)]+ via sequential coordination and desilylation of the phosphaalkyne Me3SiCΞP.  The heteroleptic analogue trans‐[Ru(dppe)2(CΞN)(CΞP)] is also prepared from the same cation and NaCN; both cyaphido complexes are structurally characterized, enabling the first direct comparison of cyaphide with cyanide, its isoelectronic and isolobal counterpart.  This demonstrates an enhanced p‐acidity for ‐CΞP over ‐CΞN, while computational studies reveal also a degree of p‐donor character for the cyaphido ligand.

Funding

Linearly Conjugated Phosphacarbon Organometallics : EPSRC-ENGINEERING & PHYSICAL SCIENCES RESEARCH COUNCIL | EPSRC Ref: EP/N

History

Publication status

  • Published

File Version

  • Accepted version

Journal

Chemistry – A European Journal

ISSN

0947-6539

Publisher

Wiley

Department affiliated with

  • Chemistry Publications

Institution

University of Sussex

Full text available

  • Yes

Peer reviewed?

  • Yes

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