Synthesis of novel metallocenes: Asymmetric hydrogenation catalysts to conductive polymers
The goal of this research was to synthesize conductive polymers based on repeating ferrocene units. During the course of this study, the design of the conductive polymers evolved from the initial model based on [open quotes]stacked[open quotes] ferrocenes where ethano bridged cyclophentadienyl rings are linked by iron(II), to the latest ferrocene-diene model where ferrocene units were linked by double bonds. In the pursuit of these elusive monomers, attempts at their synthesis led down dead-end routes, even though new molecules were synthesized. Some of these dead-end routes, even though new molecules were synthesized. All the work reported in this dissertation had the eventual goal of synthesizing potential monomers for ferrocene conductive polymers. This dissertation is divided into three chapters. Chapter one describes the attempted synthesis of thiophene derivatives where a cyclopentadienyl ring is fused to the [c]-face. Although the target molecule was never synthesized, a convenient and safe new synthesis of 3,4-dibromo=2,5-dimethyl thiophene was developed along with the synthesis and full characterization of 3-bromo-4-trimethylsilyl-2,5-dimethylthiophene. Chapter two describes the design of asymmetric hydrogenation catalysts and the convenient synthesis of chiral titanocene derivatives. Chapter three summarizes the history of the attempts to prepare ferrocene containing conductive polymers and describes the synthesis of ferrocenophenes and diethano bridged bis(cyclophentadienyl) compounds for use as monomeric precursors to conductive polymers based on repeating ferrocene units.
- Research Organization:
- Louisiana State Univ. and Agricultural and Mechanical Coll., Baton Rouge, LA (United States)
- OSTI ID:
- 7069970
- Country of Publication:
- United States
- Language:
- English
Similar Records
Water-soluble conductive polymers
Water-soluble conductive polymers
Related Subjects
400201* -- Chemical & Physicochemical Properties
CATALYTIC EFFECTS
CHEMICAL PREPARATION
COMPLEXES
DIENES
FERROCENE
HETEROCYCLIC COMPOUNDS
HYDROCARBONS
IRON COMPLEXES
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
POLYENES
POLYMERS
PRECURSOR
SYNTHESIS
THIOPHENE
TITANIUM COMPLEXES
TRANSITION ELEMENT COMPLEXES