Cluster compounds containing a linear carbon chain derived from polyynediyl and polyynyl complexes, Fp*-(C C)(n)-X X = Fp*, H; Fp* = Fe(eta(5)-C5Me5)(CO)(2)
| Autor: | Min-Chul Chung, Yoshihiko Moro-oka, Munetaka Akita, Aizoh Sakurai |
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| Jazyk: | angličtina |
| Rok vydání: | 2003 |
| Předmět: |
chemistry.chemical_classification
Valence (chemistry) Stereochemistry Acetylide Organic Chemistry Alkyne Metal carbonyl Electronic structure Conjugated system Biochemistry Inorganic Chemistry Metal Crystallography chemistry.chemical_compound chemistry visual_art Materials Chemistry visual_art.visual_art_medium Physical and Theoretical Chemistry Isomerization |
| Zdroj: | Journal of Organometallic Chemistry. 670:2-10 |
| Popis: | Our studies on polynuclear complexes containing a one-dimensional carbon chain derived from polyynyl [Fp*(CC) n H 1 n ] and polyynediyl complexes [Fp*(CC) n Fp* 2 n ; Fp*=FeCp*(CO) 2 ] are reviewed. Reaction of 1 n and 2 n with di- and trinuclear metal carbonyl species produces polycarbon–polymetal systems with a variety of coordination structures including η 2 -alkyne, μ-acetylide, μ-cumulenylidene, μ 3 -alkylidyne and μ 3 -propargylidene structures. In addition to the cluster formation reactions as usually observed for acetylide and alkyne cluster compounds, the unique cluster transformations such as valence isomerization of the conjugated carbon chain, metal migration along the carbon rod and CC cleavage reaction are observed. These transformations are realized by the flexible electronic structure of the π-conjugated carbon chain (polyynyl↔cumulenic), which fits the electronic structure of the attached metal fragments. |
| Databáze: | OpenAIRE |
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