Molecular Gyroscopes: {Fe(CO)3} and {Fe(CO)2(NO)}+ Rotators Encased in Three-Spoke Stators; Facile Assembly by Alkene Metatheses

Complexes to toy with: Ring‐closing metathesis of the bis(phosphane) complexes 1 a–c (n=4–6) followed by hydrogenation gives the “molecular gyroscopes” 2 a–c. The crystal structure of 2 c and the NMR data for the analogous {Fe(CO)2(NO)}+ complex indicate facile rotation of the {Fe(CO)2(L)}m+ moietie...

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Bibliographic Details
Published in:Angewandte Chemie International Edition 2004-10, Vol.43 (41), p.5537-5540
Main Authors: Shima, Takanori, Hampel, Frank, Gladysz, J. A.
Format: Article
Language:English
Subjects:
alkene metathesis
Alkenes - chemical synthesis
Alkenes - chemistry
Crystallography, X-Ray
iron
Iron - chemistry
Models, Molecular
Molecular Conformation
N ligands
Organometallic Compounds - chemical synthesis
Organometallic Compounds - chemistry
phosphine ligands
ring-closing metathesis
Rotation
Stereoisomerism
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Summary:Complexes to toy with: Ring‐closing metathesis of the bis(phosphane) complexes 1 a–c (n=4–6) followed by hydrogenation gives the “molecular gyroscopes” 2 a–c. The crystal structure of 2 c and the NMR data for the analogous {Fe(CO)2(NO)}+ complex indicate facile rotation of the {Fe(CO)2(L)}m+ moieties within the P(CH2)14P spokes. Shorter bridges as in 2 a lock the rotators.
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.200460534