Transition metal catalysis of hydrogen shuttling in coal liquefaction. Quarterly technical progress report, September 1, 1985-November 30, 1985
The ultimate objective of this research is to uncover new catalytic processes for the liquefaction of coal and for upgrading coal-derived fuels by removing undesirable organosulfur, organonitrogen and organooxygen constituents. Basic to both the liquefaction of coal and the purification of coal liquids is the transfer of hydrogen from such sources as dihydrogen, metal hydrides or partially reduced aromatic hydrocarbons to the extensive aromatic rings in coal itself or to aromatic sulfides, amines and ethers. Accordingly, this study is exploring how such crucial hydrogen-transfer processes might be catalyzed by soluble, low-valent transition metal complexes under moderate conditions of temperature and pressure. During the fifth quarter of this three-year grant the following phases of this study received particular attention: (a) the principal investigator completed his three-month period as visiting scientist at Cornell University, October 1 to December 31, 1985, with Professor Roald Hoffmann on the topic of Extended Hueckel Molecular Orbital calculations of organometallic structure; (b) final gas evolution studies between LiAlH/sub 4/ and bipyridyl(1,5-cyclooctadiene) nickel have been made and the related manuscript written for publication; (c) gas evolution studies between diisobutylaluminum hydride and phosphine complexes of Pt(0) and Ni(0) have been undertaken, as part of our trying to understand how powerful reducing agents can be generated from such combinations; (d) hydrogen shuttling studies continue between dihydroaromatic hydrocarbons and Ni(0) complexes; (e) studies on the cleavage of benzylic C-C bonds by Ni(0) and Cr(0) complexes are being intensified; and (f) attempts are being made to isolate crystalline samples of several organonickel intermediates in the foregoing cleavage reactions, so that x-ray structure determinations can be carried out.
- Research Organization:
- State Univ. of New York, Binghamton (USA). Dept. of Chemistry
- DOE Contract Number:
- FG22-84PC70786
- OSTI ID:
- 6243568
- Report Number(s):
- DOE/PC/70786-T5; ON: DE86006803
- Resource Relation:
- Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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Transition metal catalysis of hydrogen shuttling in coal liquefaction
Transition metal catalysis of hydrogen shuttling in coal liquefaction. Quarterly technical progress report, September 1-November 30, 1984. [LiAlH4]
Related Subjects
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ALUMINIUM HYDRIDES
CHEMICAL REACTIONS
COAL LIQUEFACTION
CATALYSTS
COAL LIQUIDS
DENITRIFICATION
DESULFURIZATION
HYDROGEN TRANSFER
CATALYSIS
LITHIUM HYDRIDES
NICKEL COMPLEXES
CATALYTIC EFFECTS
PLATINUM COMPLEXES
BIPYRIDINES
CYCLOALKENES
LIGANDS
ORGANIC PHOSPHORUS COMPOUNDS
RESEARCH PROGRAMS
STRUCTURAL MODELS
ALKALI METAL COMPOUNDS
ALKENES
ALUMINIUM COMPOUNDS
AZINES
COMPLEXES
FLUIDS
HETEROCYCLIC COMPOUNDS
HYDRIDES
HYDROCARBONS
HYDROGEN COMPOUNDS
LIQUEFACTION
LIQUIDS
LITHIUM COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PYRIDINES
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENT COMPLEXES
010405* - Coal
Lignite
& Peat- Hydrogenation & Liquefaction
400301 - Organic Chemistry- Chemical & Physicochemical Properties- (-1987)