A binuclear nickel(0) compound with trifluorophosphine ligands

Trifluorophosphine as a Bridging Ligand in Homoleptic Binuclear Nickel Complexes†

“…This theoretical study of the binuclear Ni 2 (PF 3 ) n derivatives coupled with the generation of binuclear Ni 2 (PF 3 ) n ions in the mass spectrum , of Ni(PF 3 ) 4 suggests the feasibility of synthesizing homoleptic Ni 2 (PF 3 ) n derivatives with bridging PF 3 groups. The thermodynamics (Table ) suggests Ni 2 (PF 3 ) 6 or Ni 2 (PF 3 ) 5 , particularly the latter, as the most promising synthetic targets.…”

“…No binuclear Ni 2 (PF 3 ) n derivatives have yet been synthesized but neither have any neutral homoleptic nickel carbonyls Ni 2 (CO) n . However, mass spectrometry experiments provide evidence for binuclear Ni 2 (PF 3 ) n derivatives ( n = 6, 5, 4, 3, 2) in the gas phase arising from ion−molecule reactions. , Theoretical studies on binuclear nickel carbonyls predict low energy structures with one, two, and three bridging carbonyl groups for Ni 2 (CO) 7 , Ni 2 (CO) 6 , and Ni 2 (CO) 5 . This suggests that analogous Ni 2 (PF 3 ) n ( n = 7, 6, 5) derivatives might have low-energy structures containing bridging PF 3 groups.…”