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- Title
A Monometallic Bis(cyaphido) Complex.
- Authors
Levis, Madeleine C.; Helm, Monte L.; Turner, John F. C.; Crossley, Ian R.
- Abstract
The first example of a bis(cyaphido) complex, trans‐[Ru(dppe)2(C≡P)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(C≡P)]+ via sequential coordination and desilylation of the phosphaalkyne Me3SiC≡P. The heteroleptic analogue trans‐[Ru(dppe)2(C≡N)(C≡P)] 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 π‐acidity for −C≡P over −C≡N, while computational studies reveal also a higher π‐donor character for the cyaphido ligand.
- Subjects
COORDINATE covalent bond; LIGANDS (Chemistry); CYANIDES; RUTHENIUM; CATIONS
- Publication
Chemistry - A European Journal, 2024, Vol 30, Issue 40, p1
- ISSN
0947-6539
- Publication type
Article
- DOI
10.1002/chem.202303370