115632-01-4Relevant academic research and scientific papers
The Oxidative Isomerisation of cis,cis-Dicarbonylmanganese(I) Derivatives; Isolation of the Resulting trans-Dicarbonylmanganese(II) Complexes and the X-Ray Structure of cis,cis-(Ph2PCH2PPh2)>
Connelly, Neil G.,Hassard, Keeley A.,Dunne, Barry J.,Orpen, A. Guy,Raven, Stephen J.,et al.
, p. 1623 - 1630 (2007/10/02)
The manganese(I) complexes cis,cis-(dppm)>z , cis,cis-(1+) , and cis-(1+) undergo oxidative isomerisation at a platinum electrode in CH2Cl2 to the trans-dicarbonylmanganese(II) analogues which are also formed directly by the reversible one-electron oxidation of trans-(dppm)>z (2; z=0, L=Br or Cn; z=+1, L=CNMe) or trans-2(dppe)>(1+).The low-spin manganese(II) complexes trans-(dppm)> z (3; z=+1, L=Br or CN) have been prepared as crystalline (1-) salts by the chemical oxidation of (1; z=0, L=Br or CN) with and respectively, but excess and (1; z=0, L=CN) gave the hydrogen isocyanide complex (3; z=+2, L=CNH); the e.s.r. spectra of these species are reported.The stereochemistry of cis,cis-(dppm)> has been determined by X-ray crystallography.The bromide ligand is trans to CO, and the manganese has a distorted octahedral co-ordination geometry with the largest distortions due to the restricted bite of the chelating dppm ligand .The structure analysis has aided a brief discussion of the significance of the linear correlations between E0 and the ligand constant, PL, observed for both (1) and (2).
