Grimm, Felix W. ; Hafner, Klaus ; Lindner, Hans Jörg (1996)
Synthesis, Structure and Conformation of cis- and trans-(μ-1,6-Dimethylheptalene)bis(tricarbonyliron).
In: Chemische Berichte, 129 (12)
doi: 10.1002/cber.19961291226
Artikel, Bibliographie
Dies ist die neueste Version dieses Eintrags.
Kurzbeschreibung (Abstract)
The reaction of 1,6-dimethylheptalene (2) with Fe₂(CO)₉ affords two binuclear iron complexes 4a and 4b, each bearing two tricarbonyliron moieties, in trans and cis orientation, respectively. The reaction leads additionally to the formation of the monocomplexed compound 3. NMR studies indicate that the heptalene moiety of the new compounds is a π-bond isomer of 2, and this is clearly attributable to steric factors. Single-crystal X-ray structure analyses of the metal complexes 4a and 4b confirm that the Fe(CO)₃ fragments adopt trans and cis geometries, respectively, with respect to the plane of the carbocycle. The ring systems of the two isomers adopt different conformations in the solid state. In the case of 4a, a hitherto unknown chair-like conformation is determined, whereas in complex 4b the ring system shows a twisted double boat conformation.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 1996 |
| Autor(en): | Grimm, Felix W. ; Hafner, Klaus ; Lindner, Hans Jörg |
| Art des Eintrags: | Bibliographie |
| Titel: | Synthesis, Structure and Conformation of cis- and trans-(μ-1,6-Dimethylheptalene)bis(tricarbonyliron) |
| Sprache: | Englisch |
| Publikationsjahr: | 1996 |
| Ort: | Darmstadt |
| Verlag: | Wiley |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Chemische Berichte |
| Jahrgang/Volume einer Zeitschrift: | 129 |
| (Heft-)Nummer: | 12 |
| DOI: | 10.1002/cber.19961291226 |
| Zugehörige Links: | |
| Kurzbeschreibung (Abstract): | The reaction of 1,6-dimethylheptalene (2) with Fe₂(CO)₉ affords two binuclear iron complexes 4a and 4b, each bearing two tricarbonyliron moieties, in trans and cis orientation, respectively. The reaction leads additionally to the formation of the monocomplexed compound 3. NMR studies indicate that the heptalene moiety of the new compounds is a π-bond isomer of 2, and this is clearly attributable to steric factors. Single-crystal X-ray structure analyses of the metal complexes 4a and 4b confirm that the Fe(CO)₃ fragments adopt trans and cis geometries, respectively, with respect to the plane of the carbocycle. The ring systems of the two isomers adopt different conformations in the solid state. In the case of 4a, a hitherto unknown chair-like conformation is determined, whereas in complex 4b the ring system shows a twisted double boat conformation. |
| Freie Schlagworte: | Heptalenes / Carbonyliron complexes / cis and trans complexation |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 500 Naturwissenschaften und Mathematik > 540 Chemie |
| Fachbereich(e)/-gebiet(e): | 07 Fachbereich Chemie 07 Fachbereich Chemie > Clemens-Schöpf-Institut 07 Fachbereich Chemie > Clemens-Schöpf-Institut > Fachgebiet Organische Chemie |
| Hinterlegungsdatum: | 02 Aug 2024 12:45 |
| Letzte Änderung: | 02 Aug 2024 12:45 |
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| Suche nach Titel in: | TUfind oder in Google |
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Synthesis, Structure and Conformation of cis- and trans-(μ-1,6-Dimethylheptalene)bis(tricarbonyliron). (deposited 28 Nov 2022 09:47)
- Synthesis, Structure and Conformation of cis- and trans-(μ-1,6-Dimethylheptalene)bis(tricarbonyliron). (deposited 02 Aug 2024 12:45) [Gegenwärtig angezeigt]
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