Preparation of highly reactive metal powders: preparation, characterization, and chemistry of iron, cobalt, nickel, palladium, and platinum microparticles
Anhydrous metal halides of iron cobalt, nickel, palladium, and platinum are readily reduced in glyme or tetra-hydro-furan (THF) with lithium in the presence of a small amount of naphthalene and yield finely divided, black metal powders of exceptional reactivity. Metal powders of Fe and Co react with C/sub 6/F/sub 5/X (X = Br, I) to yield solvated M(C/sub 6/F/sub 5/)/sub 2/ and MX/sub 2/. Powders of palladium and platinum react with C/sub 6/F/sub 5/I to yield solvated M(C/sub 6/F/sub 5/)I (M = Pd, Pt). Nickel powder reacts with C/sub 6/F/sub 5/I to yield the solvated species Ni(C/sub 6/F/sub 5/)/sub 2/ and NiI/sub 2/, however, with C/sub 6/F/sub 5/Br the product is solvated Ni(C/sub 6/F/sub 5/)Br. In most cases the metal powders are sufficiently reactive that a stoichiometric amount of C/sub 6/F/sub 5/X to the metal powder is used. The coordinated ether of all of these organometallic compounds is exceptionally labile and is displaced with a variety of ligands: phosphines, amines, sulfides, isocyanides, diolefins, and carbon monoxide. Many of the resultant compounds are novel and most are obtained in high yields. Palladium metal powder to which has been added 2,2'-bipyridine (bpy) reacts with iodobenzene to yield Pd(C/sub 6/H/sub 5/)I(bpy). Surface analyses including ESCA (electron spectroscopy) and BET were performed on the highly reactive Ni, Pt, and Pd metal powders. 32 references, 4 tables.
- Research Organization:
- Univ. of Nebraska, Lincoln
- DOE Contract Number:
- AC02-80ER10603
- OSTI ID:
- 5949907
- Journal Information:
- Organometallics; (United States), Journal Name: Organometallics; (United States) Vol. 2:3; ISSN ORGND
- Country of Publication:
- United States
- Language:
- English
Similar Records
Studies on unusually reactive metal powders. Preparation of new organometallic and organic compounds including potential new catalysts. Final report, July 1, 1980-December 31, 1984. [Benzyl ketones]
Photoinduced intramolecular electron transfer in 1,2,4,5,-tetrakis(diphenylphosphino)benzene-bridged Os{sup II}-M{sup II} dimetallic complexes (M = Ni, Pd, Pt)
Related Subjects
360101 -- Metals & Alloys-- Preparation & Fabrication
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
400301 -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ALKENES
AMINES
AROMATICS
AZINES
BIPYRIDINES
BROMINATED AROMATIC HYDROCARBONS
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CHALCOGENIDES
CHEMICAL PREPARATION
CHEMICAL REACTIONS
CHROMATOGRAPHY
COBALT
COBALT COMPLEXES
COMPLEXES
DATA
ELECTRON SPECTROSCOPY
ELEMENTS
EXPERIMENTAL DATA
FLUORINATED AROMATIC HYDROCARBONS
GAS CHROMATOGRAPHY
HALOGENATED AROMATIC HYDROCARBONS
HETEROCYCLIC COMPOUNDS
HYDROCARBONS
INFORMATION
IODINATED AROMATIC HYDROCARBONS
IRON
IRON COMPLEXES
LIGANDS
METALS
NICKEL
NICKEL COMPLEXES
NMR SPECTRA
NUMERICAL DATA
ORGANIC BROMINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC FLUORINE COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC IODINE COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANOMETALLIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PALLADIUM
PALLADIUM COMPLEXES
PHOSPHINES
PHOSPHORUS COMPOUNDS
PLATINUM
PLATINUM COMPLEXES
PLATINUM METALS
POWDERS
PYRIDINES
REAGENTS
SEPARATION PROCESSES
SPECTRA
SPECTROSCOPY
STABILITY
STRUCTURAL CHEMICAL ANALYSIS
SULFIDES
SULFUR COMPOUNDS
SURFACE AREA
SURFACE PROPERTIES
SYNTHESIS
TRANSITION ELEMENT COMPLEXES
TRANSITION ELEMENTS