(Electron transfer activation of coordinated thiophene)
This report summarizes our recent work on the isolation, characterization, and thermolysis of an intermediate in a thiophene desulfurization reaction. In the thermolysis, two metals combine to stabilize the C{sub 4} hydrocarbon residue in the form of a ferrole while three metals bind the extruded sulfur atom to give a cluster. Thus the metals play two distinct roles in the desulfurization of the heterocycle. The initial stage in thiophene desulfurization constitutes the replacement of one heteroatom with another, i.e. metal for sulfur. The metallacyclic ferrole provides an obvious means for the stabilization of the hydrocarbon residue. With regard to subsequent steps in a hydrodesulfurization cycle, the formation of M-C bonds is necessary simply because they are susceptible to hydrogenolysis whereas C-S bonds are not.
- Research Organization:
- Illinois Univ., Urbana, IL (United States)
- Sponsoring Organization:
- DOE; USDOE, Washington, DC (United States)
- DOE Contract Number:
- FG02-90ER14146
- OSTI ID:
- 5333433
- Report Number(s):
- DOE/ER/14146-1; ON: DE91017729
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
400201* -- Chemical & Physicochemical Properties
CHEMICAL REACTIONS
COHERENT SCATTERING
COMPLEXES
DECOMPOSITION
DESULFURIZATION
DIFFRACTION
HETEROCYCLIC COMPOUNDS
IRON COMPLEXES
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
ORGANOMETALLIC COMPOUNDS
PYROLYSIS
RHODIUM COMPLEXES
SCATTERING
SOLID CLUSTERS
STRUCTURAL CHEMICAL ANALYSIS
THERMOCHEMICAL PROCESSES
THIOPHENE
TRANSITION ELEMENT COMPLEXES
X-RAY DIFFRACTION