Isolation of Bis- and Mono-Cyclometallated Ru-IMes complexes upon reaction of [Ru(PPh3)3HCl], IMes and ZnMe2

Pécharman, Anne-Frédérique M. ; Roberts, Erika M. ; Miloserdov, Fedor M. ; Varela-Izquierdo, Victor ; Mahon, Mary F. ; Whittlesey, Michael K.

Resumen: Addition of an excess of ZnMe2 to a mixture of [Ru(PPh3)3HCl] and IMes (IMes=1,3-bis(2,4,6-trimethylphenyl)imidazolin-2-ylidene) yields the bis-cyclometallated complex, [Ru(IMes)“(PPh3)2] 2, together with the mono-cyclometallated, Ru−Zn heterobimetallic complex [Ru(IMes)′(PPh3)2(ZnMe)] 3. Treatment of 2 with H2, PhSiH3 or pinacolborane yields the previously reported complex, [Ru(IMes)′(PPh3)2H] 1, the synthesis of which has been reinvestigated. Further studies of small molecule reactivity show that 1 adds H2 to give [Ru(IMes)(PPh3)2H4] 4, whilst 2 reacts with catecholborane to give [Ru(IMes-Bcat)′(PPh3)2H] 5, in which (IMes-Bcat)′ signifies a borylated NHC ligand that is singly-metallated onto Ru. Treatment of 2 with CO gives the 18-electron dicarbonyl product [Ru(IMes)”(PPh3)(CO)2] 6. Compounds 1–3, 5 and 6 have been structurally characterised.

Idioma: Inglés

DOI: 10.1002/ejic.202300037

Año: 2023

Publicado en: European Journal of Inorganic Chemistry 26, 12 (2023), e202300037 [11 pp.]
ISSN: 1434-1948

Factor impacto JCR: 2.2 (2023)

Categ. JCR: CHEMISTRY, INORGANIC & NUCLEAR rank: 23 / 44 = 0.523 (2023) - Q3 - T2

Factor impacto CITESCORE: 4.3 - Inorganic Chemistry (Q2)

Factor impacto SCIMAGO: 0.481 - Inorganic Chemistry (Q2)

Financiación: info:eu-repo/grantAgreement/ES/DGA-FEDER/E08-17R
Financiación: info:eu-repo/grantAgreement/ES/MINECO/CTQ2017-83421-P

Tipo y forma: Artículo (Versión definitiva)