Published July 5, 2006
| Version Supplemental Material
Journal Article
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Model Compounds of Ruthenium−Alkene Intermediates in Olefin Metathesis Reactions
Creators
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1.
California Institute of Technology
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2.
Pomona College
Abstract
The development of a model system to study ruthenium−olefin complexes relevant to the mechanism of olefin metathesis is reported. Upon addition of 1,2-divinylbenzene to (H_2IMes)(py_2)(Cl)_2Ru CHPh (H_2IMes = 1,3-dimesityl-4,5-dihydroimidazol-2-ylidene), two ruthenium−olefin adducts are formed. On the basis of ^1H NMR spectroscopy experiments and X-ray crystallographic analysis, these complexes are assigned as side-bound isomers in which the olefin and H_2IMes ligands are coordinated cis to each other. The dynamic interconversion of these two ruthenium complexes was determined to have a barrier of 19.1 ± 0.1 kcal/mol.
Additional Information
© 2006 American Chemical Society. Received March 15, 2006. The authors thank Lawrence M. Henling and Dr. Michael W. Day for X-ray crystallography data, John Keith for invaluable assistance with theoretical calculations, and Materia, Inc. for generous donation of complex 2. D.R.A. was supported by NDSEG and NSF predoctoral fellowships. D.J.O. thanks the Mellon Foundation for financial support. This research was also supported by the National Science Foundation.Attached Files
Supplemental Material - ja0618090si20060315_114021.cif
Supplemental Material - ja0618090si20060511_052029.pdf
Files
ja0618090si20060511_052029.pdf
Additional details
Identifiers
- Eprint ID
- 55672
- Resolver ID
- CaltechAUTHORS:20150310-115120338
Funding
- National Defense Science and Engineering Graduate (NDSEG) Fellowship
- NSF Predoctoral Fellowship
- Andrew W. Mellon Foundation
Dates
- Created
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2015-03-10Created from EPrint's datestamp field
- Updated
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2023-03-16Created from EPrint's last_modified field