[Transition metal mediated transformations of small molecules]
Work on organotransition metal chemistry, homogeneous and heterogeneous catalysis is summarized. Several cationic palladium(II) complexes with bulky phosphine or pyridine ligands were discovered that are highly selective catalysts for linear dimerization of vinyl monomers and linear polymerization of p-divinylbenzene, the reactions proceeding through a carbocationic mechanism. Our studies were continued on alternating olefin-carbon monoxide copolymers. The copolymerization reaction and reactivity of copolymers were examined. New catalytic systems for alternating copolymerization of [alpha]-olefins with CO were discovered. In the case of styrene derivatives, tactic copolymers were obtained. Poly(ethylenepyrrolediyl) derivatives were synthesized from alternating ethylene-carbon monoxide copolymer and become electronic conductors when doped with iodine. A catalytic system for direct synthesis of polyureas and polyoxamides from and diamines was also discovered. Pt metal catalyzed the oxidation of ethers, esters, and amines to carboxylic acids and the oxidation of olefins to 1,2-diols. Anaerobic and aerobic decomposition of molybdenum(VI)-oxoalkyl compounds were studied for heterogeneous oxidation of alkanes and olefins on Mo(VI)-oxide surfaces. Synthesis of polymer-trapped metal, metal oxide, and metal sulfide nanoclusters (size <1--10 nm) was studied.
- Research Organization:
- Pennsylvania State Univ., University Park, PA (United States)
- Sponsoring Organization:
- USDOE; USDOE, Washington, DC (United States)
- DOE Contract Number:
- FG02-84ER13295
- OSTI ID:
- 6915678
- Report Number(s):
- DOE/ER/13295-6; ON: DE93001725
- Country of Publication:
- United States
- Language:
- English
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(Transition metal mediated transformations of small molecules)
Organometallic chemistry of weakly solvated transition metal cations. Final report, August 1, 1981-July 31, 1984
Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
36 MATERIALS SCIENCE
COPOLYMERIZATION
CATALYSIS
DIMERIZATION
ORGANOMETALLIC COMPOUNDS
CATALYTIC EFFECTS
OXIDATION
POLYMERIZATION
TRANSITION ELEMENT COMPOUNDS
ALKANES
ALKENES
CATALYSTS
HETEROGENEOUS CATALYSIS
MOLYBDENUM COMPLEXES
PALLADIUM COMPLEXES
PLATINUM
PROGRESS REPORT
STYRENE
VINYL MONOMERS
ALKYLATED AROMATICS
AROMATICS
CHEMICAL REACTIONS
COMPLEXES
DOCUMENT TYPES
ELEMENTS
HYDROCARBONS
METALS
MONOMERS
ORGANIC COMPOUNDS
PLATINUM METALS
TRANSITION ELEMENT COMPLEXES
TRANSITION ELEMENTS
400201* - Chemical & Physicochemical Properties
360601 - Other Materials- Preparation & Manufacture