Genre
- Journal Article
Coordination of dicobalt hexacarbonyl to the alkyne moiety of norbornene complexes containing either ferrocene or η(6) -chlorobenzene-η(5) -cyclopentadienyliron hexafluorophosphate, gave two unique trimetallic complexes available for ROMP. Polymerization of each monomer using Grubbs second generation catalyst gave organoiron/organocobalt polynorbornenes with weight average molecular weights between 55 300 and 69 000 with PDIs between 1.2 and 1.9. Cyclic voltammetric studies of the monomers and polymers at -40 °C showed a reversible reduction for cationic complexes containing η(6) -benzene-η(5) -cyclopentadienyliron and for the dicobalt hexacarbonyl moieties while, a reversible oxidation for the ferrocene containing complex was observed. Thermal analysis showed that the cobalt carbonyl moiety of the polymers degraded near 130 °C; however, the polymeric backbone was stable up to 350 °C. Scanning electron microscopy (SEM) and SEM-EDS indicated that the polymers possessed a fine globular morphology and that the distribution of iron and cobalt atoms was homogenous on the macro-scale.
Department of Chemistry, The University of British Columbia Okanagan, Kelowna, BC, Can.
Copyright (C) 2012 American Chemical Society (ACS). All Rights Reserved.; Section Code: 35-7; CA Section Cross-references: 36, 78; CODEN: MRCOE3; CAS Registry Numbers: 1258444-49-3P Role: RCT (Reactant), SPN (Synthetic preparation), PREP (Preparation), RACT (Reactant or reagent) (exo monomer; prepn. and morphol. and redox electrochem. of polynorbornenes contg. ferrocene and its chlorobenzene fluorophosphate and tricarbonylcobalt); 1258444-47-1P; 1258444-52-8P; 1258444-57-3P Role: RCT (Reactant), SPN (Synthetic preparation), PREP (Preparation), RACT (Reactant or reagent) (monomer; prepn. and morphol. and redox electrochem. of polynorbornenes contg. ferrocene and its chlorobenzene fluorophosphate and tricarbonylcobalt); 246047-72-3 Role: CAT (Catalyst use), USES (Uses) (prepn. and morphol. and redox electrochem. of polynorbornenes contg. ferrocene and its chlorobenzene fluorophosphate and tricarbonylcobalt); 1258444-61-9P; 1258444-65-3P; 1258444-68-6P; 1261120-90-4P; 1261121-38-3P; 1261121-76-9P Role: PRP (Properties), SPN (Synthetic preparation), PREP (Preparation) (prepn. and morphol. and redox electrochem. of polynorbornenes contg. ferrocene and its chlorobenzene fluorophosphate and tricarbonylcobalt); 110-65-6 (2-Butyne-1,4-diol); 120-74-1; 934-30-5 (exo-2-Norbornene-5-carboxylic acid); 1271-42-7 (Ferrocene carboxylic acid); 10210-68-1 (Dicobalt octacarbonyl); 1258444-24-4; 1258444-27-7 Role: RCT (Reactant), RACT (Reactant or reagent) (prepn. and morphol. and redox electrochem. of polynorbornenes contg. ferrocene and its chlorobenzene fluorophosphate and tricarbonylcobalt); 1258444-29-9P; 1258444-32-4P; 1258444-35-7P; 1258444-39-1P; 1258444-42-6P; 1258444-45-9P Role: RCT (Reactant), SPN (Synthetic preparation), PREP (Preparation), RACT (Reactant or reagent) (prepn. and morphol. and redox electrochem. of polynorbornenes contg. ferrocene and its chlorobenzene fluorophosphate and tricarbonylcobalt); 538-75-0 (Dicyclohexylcarbodiimide); 57951-36-7 (Dimethylaminopyridine) Role: RGT (Reagent), RACT (Reactant or reagent) (prepn. and morphol. and redox electrochem. of polynorbornenes contg. ferrocene and its chlorobenzene fluorophosphate and tricarbonylcobalt)
Source type: Electronic(1)
Language
- English
Subjects
- prepn
- prepn. and morphol. and redox electrochem. of polynorbornenes contg. ferrocene and its chlorobenzene fluorophosphate and tricarbonylcobalt)
- carbonyl
- OXIDATION
- Polymer morphology (globular
- Polymerization (metathetic, ring-opening
- Polymer degradation (thermal
- morphol
- STABILITY
- redox
- COBALT
- Ferrocene
- Reduction (prepn. and morphol. and redox electrochem. of polynorbornenes contg. ferrocene and its chlorobenzene fluorophosphate and tricarbonylcobalt)
- esterification
- polynorbornene