Work

Synthesis and Molecular Structure of [Fe4(CO)10(μ4-O)(κ2-dppn)] (dppn = 1,8-bis(diphenylphosphino)naphthalene): A Missing Piece in the [M4(CO)12(μ4-E)]n− (M = Fe, Ru; E = C, N, O; n = 2, 1, 0) Puzzle

Year: 2009

Type: article

Abstract: Reaction of Fe 3 (CO) 12 with 1,8-bis(diphenylphosphino)naphthalene (dppn) yields the tetranuclear oxide cluster [Fe 4 (CO) 10 (μ 4 -O)(κ 2 -dppn)] ( 1 ), which has been crystallographically characterized. It is a member of the [M 4 (CO) 12 (μ 4 -E)] n − series of butterfly clusters, being a close relative of the unknown “missing link” [Fe 4 (CO) 12 (μ 4 -O)] ( 2 ). In order to understand the stability of 1 relative to 2, we have carried out DFT calculations on [Fe 4 (CO) 10 L 2 (μ 4 -O)] (L = CO, PMe 3, PPh 3; L 2 = dppn), which suggest that 1 is best considered as a combination of [Fe 3 (CO) 9 O] 2− and [Fe(CO)(dppn)] 2+ fragments.

Source: Organometallics

DOI: 10.1021/om900855v