Recherches de synthèse et de structure de dérivés du fer carbonyle

Synthetic, structural, and chemical study of the 1,2-diphosphetene ring

“…The excess sulfur was thus recovered; the column was then washed with etherhexane (2:1), and 2.6 g of two solid diastereoisomers of (CeHslfCH^PfSlCÍCeHsl^CfCeHelPÍSKCgHslCHa) (5,89% yield) was recovered: mol wt 488; NMR 6.5-8 (m, 20 H, phenyl), I. 8 (d, Jph = 13 Hz, 6 H, methyl, first diastereomer), 1.7 (d, JPH = 13 Hz, 6 H, methyl, second diastereomer). Anal.…”

The syntheses and structures of iron carbonyl adducts of tricoordinated hypervalent phosphorus compounds

“…UV irradiation of (or, alternatively, boiling) a solution containing only (ADPO)Fe(C0)4 yields the identical product. The usual geometry for unconstrained his(phosphorus) iron tricarbonyl complexes is TBP with phosphorus ligands in the axial positions [16,17,22,271. However, the IR spectrum of (ADP0)2Fe(CO)3 does not show the single major band in the vco region that would be expected for tr~ns-L~Fe(C0)~.…”

Comparative infrared and Raman spectroscopic .nu.(carbon monoxide) study of dodecacarbonyltriruthenium, dodecacarbonyltriosmium, their mixed crystals, and the mixed triangulo cluster carbonyls dodecacarbonylosmiumdiruthenium and dodecacarbonyldiosmiumruthenium

“…In examining the data given in Figures 2-5, it is helpful to anticipate to some extent our final conclusions. 7, 19801965 5 1972.0 1999.5" 1972.0 1994.5' 1994.5" 1994'5 1994.5Q 1968.0 1968.0 " Calculated intensity = 0. It is clear that these constants exhibit a nearly perfect transferability from molecule to molecule.…”