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Medientyp:
E-Artikel
Titel:
A Monometallic Bis(cyaphido) Complex
Beteiligte:
Levis, Madeleine C.;
Helm, Monte L.;
Turner, John F. C.;
Crossley, Ian R.
Erschienen:
Wiley, 2024
Erschienen in:
Chemistry – A European Journal, 30 (2024) 40
Sprache:
Englisch
DOI:
10.1002/chem.202303370
ISSN:
0947-6539;
1521-3765
Entstehung:
Anmerkungen:
Beschreibung:
AbstractThe 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.