Part I: the electrocatalytic reduction of carbon dioxide using macrocycles of nickel and cobalt. Part II: the preparation, characterization and reaction chemistry of some new iridium bis(tertiary phosphine) complexes
Thesis/Dissertation
·
OSTI ID:5616862
The iridium(III) hydride adducts of these complexes were prepared. Binuclear dppp (1,3-bis-diphenylphosphino)-propane) bridged complexes of formula (IrH/sub 2/X(CO)(dppp))/sub 2/ where X = Br, I, possess the phosphine donors in trans positions. Upon heating, these dimers cleave into monomeric species of the same stoichiometry. The dppe (1,2-bis(diphenylphosphine)ethane) complexes are all mononuclear and contain a chelated ligand. The new complexes IrX(CO)(dppe) where X = Br, I, have been described, as has their reaction chemistry to form reversible adducts with CO and H/sub 2/. The trihydride complex IrH/sub 3/(C)(dppe) has been prepared. Under irradiation or heating, H/sub 2/ is eliminated, yielding IrD/sub 3/(CO(dppe) under D/sub 2/ and IrH(CO)2(dppe) under CO. In C/sub 6/D/sub 6/ under vacuum, IrH/sub 3/(CO)(dppe) shows evidence of H/D exchange only upon irradiation, indicating arene C-H bond activation involving a photochemical process. When irradiation of IrH/sub 3/(CO(dppe) In C/sub 6/H/sub 6/ under CO is carried out, benzaldehyde is produced. One important secondary reaction upon prolonged photolysis is the subsequent conversion of benzaldehyde to benzyl alcohol.
- OSTI ID:
- 5616862
- Country of Publication:
- United States
- Language:
- English
Similar Records
Photochemical carbonylation of benzene by iridium(I) and rhodium(I) square-planar complexes
Phosphine-based platinum(II) hydroxo and oxo complexes
Organometallic chemistry on a metallathiaborane cluster: Reactions of [8,8-(PPh{sub 3}){sub 2}-nido-8,7-RhSB{sub 9}H{sub 10}] with bidentate phosphine ligands
Journal Article
·
Sat Oct 01 00:00:00 EDT 1988
· Organometallics; (United States)
·
OSTI ID:5913280
Phosphine-based platinum(II) hydroxo and oxo complexes
Journal Article
·
Tue Jan 30 23:00:00 EST 1996
· Inorganic Chemistry
·
OSTI ID:255638
Organometallic chemistry on a metallathiaborane cluster: Reactions of [8,8-(PPh{sub 3}){sub 2}-nido-8,7-RhSB{sub 9}H{sub 10}] with bidentate phosphine ligands
Journal Article
·
Mon Aug 30 00:00:00 EDT 1999
· Organometallics
·
OSTI ID:696627
Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400400* -- Electrochemistry
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CATALYSIS
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL PREPARATION
CHEMICAL PROPERTIES
CHEMICAL REACTIONS
CHROMATOGRAPHY
COBALT
COMPLEXES
DATA
ELECTRIC POTENTIAL
ELECTROCATALYSTS
ELEMENTS
EXPERIMENTAL DATA
GAS CHROMATOGRAPHY
INFORMATION
IRIDIUM COMPLEXES
METALS
NICKEL
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PHOSPHINES
PHOSPHORUS COMPOUNDS
REDUCTION
SEPARATION PROCESSES
SYNTHESIS
TRANSITION ELEMENT COMPLEXES
TRANSITION ELEMENTS
400400* -- Electrochemistry
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CATALYSIS
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL PREPARATION
CHEMICAL PROPERTIES
CHEMICAL REACTIONS
CHROMATOGRAPHY
COBALT
COMPLEXES
DATA
ELECTRIC POTENTIAL
ELECTROCATALYSTS
ELEMENTS
EXPERIMENTAL DATA
GAS CHROMATOGRAPHY
INFORMATION
IRIDIUM COMPLEXES
METALS
NICKEL
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PHOSPHINES
PHOSPHORUS COMPOUNDS
REDUCTION
SEPARATION PROCESSES
SYNTHESIS
TRANSITION ELEMENT COMPLEXES
TRANSITION ELEMENTS