| 18275141 |
Mock MT, Popescu CV, Yap GP, Dougherty WG, Riordan CG: Monovalent iron in a sulfur-rich environment. Inorg Chem. 2008 Mar 17;47(6):1889-91. Epub 2008 Feb 15.
A series of low-coordinate, paramagnetic iron complexes in a tris (thioether) ligand environment have been prepared. Reduction of ferrous {[PhTt (tBu)] FeCl}2 [1; PhTt (tBu) = phenyltris ((tert-butylthio) methyl) borate] with KC8 in the presence of PR3 (R = Me or Et) yields the high-spin, monovalent iron phosphine complexes [PhTt (tBu)] Fe (PR3) (2). These complexes provide entry into other low-valent derivatives via ligand substitution. Carbonylation led to smooth formation of the low-spin dicarbonyl [PhTt (tBu)] Fe (CO) 2 (3). Alternatively, replacement of PR 3 with diphenylacetylene produced the high-spin alkyne complex [PhTt (tBu)] Fe (PhCCPh) (4). Lastly, 2 equiv of adamantyl azide undergoes a 3 + 2 cycloaddition at 2, yielding high-spin dialkyltetraazadiene complex 5. |
82(1,1,1,2) |