- Author
-
D. Anselmo
R. Gramage-Doria
T. Besset
M.V. Escárcega-Bobadilla
G. Salassa
E.C. Escudero-Adán
M.M. Belmonte
E. Martin
J.N.H. Reek
A.W. Kleij - Year
- 2013
- Title
- Supramolecular bulky phosphines comprising 1,3,5-triaza-7-phosphaadamantane and Zn(salphen)s: structural features and application in hydrosilylation catalysis
- Journal
- Dalton Transactions
- Volume | Issue number
- 42 | 21
- Pages (from-to)
- 7595-7603
- Document type
- Article
- Faculty
- Faculty of Science (FNWI)
- Institute
- Van 't Hoff Institute for Molecular Sciences (HIMS)
- Abstract
-
The use of the commercially available, bifunctional phosphine 1,3,5-triaza-7-phosphaadamantane (abbreviated as PN3) in conjunction with a series of Zn(salphen) complexes leads to sterically encumbered phosphine ligands as a result of (reversible) coordinative Zn-N interactions. The solid state and solution phase behaviour of these supramolecular ligand systems have been investigated in detail and revealed their stoichiometries in the solid state observed by X-ray crystallography, and those determined in solution by NMR and UV-Vis spectroscopy. Also, upon application of these supramolecular bulky phosphines in hydrosilylation catalysis employing 1-hexene as a substrate, the catalysis data infer the presence of an active Rh species with two coordinated, bulky PN3/Zn(salphen) assembly units having a maximum of three Zn(salphen)s associated per PN3 scaffold, with an excess of bulky phosphines hardly affecting the overall activity.
- URL
- go to publisher's site
- Language
- English
- Note
- With supplementary information & crystal structure data
- Persistent Identifier
- https://hdl.handle.net/11245/1.398633
- Downloads
-
Supramolecular_bulky_phosphines.pdf(Final published version)
Supramolecular_bulky_phosphines_supplementary_information.pdf(Final published version)
Supramolecular_bulky_phosphines_crystal_structure_data.pdf(Final published version)
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