Ferrocenylphenylphosphine and diferrocenylphosphine: new two-electron ligands in complexes of group VIB and VII transition metals

Journal Article · Sat Oct 10 00:00:00 EDT 1987 · J. Gen. Chem. USSR (Engl. Transl.); (United States)

OSTI ID:5022683

Losilkina, V I; Baranetskaya, N K; Tolkunova, V S; Krylova, A I; Vil'chevskaya, V D; Setkina, V N

Previously unknown carbonyl complexes were synthesized: C/sub 6/H/sub 6/Cr(CO)/sub 2/PFcPhH, C/sub 6/H/sub 6/Cr(CO)/sub 2/PFc/sub 2/H, C/sub 5/H/sub 5/Mn(CO)/sub 2/PFcPhH, C/sub 5/H/sub 5/Mn(CO)/sub 2/PFc/sub 2/H, and M(CO)/sub 5/PFc/sub 2/H (M = Cr, Mo, W). The ligands PFcPhH and PFc/sub 2/H have weaker electron-donor properties than the ligand PFc/sub 3/ in analogous systems. Under the conditions of isotopic exchange of hydrogen in CF/sub 3/COOH there occurs the protonation of C/sub 6/H/sub 6/Cr(CO)/sub 2/PFcH on the chromium atom. For the complex C/sub 6/H/sub 6/Cr(CO)/sub 2/PFc/sub 2/H it was found that, in the reaction of the isotopic exchange of hydrogen, hydrogens of both the ..pi..-benzene ring and the ..pi..-cyclopentadienyl rings of the phosphine ligand take part, and, moreover, at equal rates. By the method of the isotopic exchange of hydrogen and by spectral methods (IR and PMR) it was shown that the nature of the central metal atom in the complexes M(CO)/sub 5/PFc/sub 2/H, in which M = Cr, Mo, W, has no substantial influence on the spectral characteristics and on the reactivities of these complexes.

• Research Organization: Institute of Organometallic Compounds, Moscow (USSR)
• OSTI ID: 5022683
• Journal Information: J. Gen. Chem. USSR (Engl. Transl.); (United States), Vol. 57:4; Other Information: Translated from Zh. Obshch. Khim.; 57: No. 4, 852-857(Apr 1987)
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
74 ATOMIC AND MOLECULAR PHYSICS
CARBONYLS
ISOTOPIC EXCHANGE
NMR SPECTRA
CHROMIUM COMPLEXES
MANGANESE COMPLEXES
MOLYBDENUM COMPLEXES
PHOSPHINES
TUNGSTEN COMPLEXES
ACTIVATION ENERGY
BINDING ENERGY
CHEMICAL SHIFT
COMPLEXOMETRY
COUPLING CONSTANTS
DEUTERATION
DEUTERIUM COMPOUNDS
HYDROGEN 1
HYDROGEN TRANSFER
HYPERFINE STRUCTURE
INFRARED SPECTRA
ISOTOPE EFFECTS
J-J COUPLING
LIGANDS
PHOSPHORUS 31
CHEMICAL REACTIONS
COMPLEXES
COUPLING
ENERGY
HYDROGEN COMPOUNDS
HYDROGEN ISOTOPES
INTERMEDIATE COUPLING
ISOTOPES
LIGHT NUCLEI
NUCLEI
ODD-EVEN NUCLEI
PHOSPHORUS COMPOUNDS
PHOSPHORUS ISOTOPES
SPECTRA
STABLE ISOTOPES
TRANSITION ELEMENT COMPLEXES
400202* - Isotope Effects
Isotope Exchange
& Isotope Separation
640302 - Atomic
Molecular & Chemical Physics- Atomic & Molecular Properties & Theory