Reaction of organocobalt polymers with isocyanide. Synthesis of novel poly[(η5-cyclopentadieny1)(η 5-amino-cyclopentadieny1)-cobalticinium-diyl-alt-biphenyl-4,4′- diyl]s

Journal of Organometallic Chemistry

Volumn 611, Issue 1-2, 2000, Pages 570-576

  Tomita, Ikuyoshi ^a   Lee, Jong Chan ^a   Endo, Takeshi ^a  

^a TOKYO INSTITUTE OF TECHNOLOGY   (Japan)

Author keywords

Cobaltacyclopentadiene; Cobalticinium; Isocyanide; Organometallic polymer; Polymer reaction; Reactive polymer; Solvatochromism

Indexed keywords

EID: 0004780982     PISSN: 0022328X     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0022-328X(00)00393-4     Document Type: Article

References (22)

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17. 3OD revealed a peak for the Cp at 5.87 ppm, much lower than that of 5 in the same solvent system, probably because 7 does not have any equilibrium as proposed for 5.
18. The organocobalt polymer 1a containing ca. 85% of the cobaltacyclopentadiene moieties was used for this reaction. The remaining 15% was the cyclobutadienecobalt units contaminated during the synthetic step of 1a. See Ref. [2b].
19. Under air, the pale brown-colored polymer 2a turned into pale orange less soluble material, probably by oxidation.
20. As mentioned in the model experiments, attempts to use solvents with higher polarity for the alkylation failed to result in the recovery of the starting polymer.
21. The decomposition of 1a originates from the elimination of triphenylphosphine ligand by the rearrangement to the cyclobutadienecobalt-containing polymer. See Ref. [4].
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