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Tungsten(0) and rhodium(I) complexes of a series of 2-(2 '-halo)triarylphosphinines
Citation
Wallis, C and McGuinness, DS and Newman, PD and Tooze, RP and Edwards, PG, Tungsten(0) and rhodium(I) complexes of a series of 2-(2 '-halo)triarylphosphinines , Dalton Transactions, 2009, (12) pp. 2178-2184. ISSN 1477-9226 (2009) [Refereed Article]
DOI: doi:10.1039/B816507F
Abstract
A series of halo substituted triarylphosphinines have been synthesised and coordinated to tungsten(0) and rhodium(I) to give [(2-(2′-halo)- triarylphosphinine)W(CO)5] and [(2-(2′-halo)- triarylphosphinine)Rh(COD)Cl] respectively. The complexes have been examined by NMR and IR spectroscopy in an effort to elucidate the nature of the bonding between the phosphinines and the respective metal centre. The W(CO) 5(L) systems reveal restricted C-C bond rotation as evidenced by temperature-dependent 31P{1H} NMR spectra. Thermodynamic barriers to the rotation are dependent upon the nature of the halide with Î"G‡ values of 72.5 kJ mol-1 and 50.8 kJ mol-1 being obtained for the chloro- and fluoro-derivatives, respectively; activation barriers for the iodo- and bromo- derivatives were beyond the accessible temperature range of the NMR experiment. © 2009 The Royal Society of Chemistry.
Item Details
| Item Type: | Refereed Article |
|---|---|
| Research Division: | Chemical Sciences |
| Research Group: | Inorganic Chemistry |
| Research Field: | Transition Metal Chemistry |
| Objective Division: | Expanding Knowledge |
| Objective Group: | Expanding Knowledge |
| Objective Field: | Expanding Knowledge in the Chemical Sciences |
| Author: | McGuinness, DS (Dr David McGuinness) |
| ID Code: | 62382 |
| Year Published: | 2009 |
| Web of Science® Times Cited: | 8 |
| Deposited By: | Chemistry |
| Deposited On: | 2010-03-11 |
| Last Modified: | 2012-03-05 |
| Downloads: | 0 |
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