Synthesis, characterisation and reactions of ruthenium(II) complexes based upon RuL3 (2+) (L-3 = tripodal triseleno- or tritelluro-ether) fragments. Structures of RuCl2(PPh3){MeC(CH2SeMe)(3)} and RuCl2(dmso){MeC(CH2SeMe)(3)}
Levason, W., Orchard, S. D. and Reid, G. (2000) Synthesis, characterisation and reactions of ruthenium(II) complexes based upon RuL3 (2+) (L-3 = tripodal triseleno- or tritelluro-ether) fragments. Structures of RuCl2(PPh3){MeC(CH2SeMe)(3)} and RuCl2(dmso){MeC(CH2SeMe)(3)}. Journal of the Chemical Society, Dalton Transactions, (24), 4550-4554. (doi: 10.1039/b007487j).
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Description/Abstract
The reaction of [RuCl2(PPh3)(3)] with tripodal Group 16 donor ligands L-3 {MeC(CH2EMe)(3) (E=Se or Te) and MeC(CH2TePh)(3)} gave [RuCl2(PPh3)L-3] complexes which have been characterised by elemental analysis, IR and NMR spectroscopy and ES+ mass spectrometry. The structure of [RuCl2(PPh3){MeC(CH2SeMe)(3)}] reveals a distorted octahedral geometry with a facially co-ordinated triselenoether. The reaction of [RuCl2(dmso)(4)] with L-3 gave [RuCl2(dmso)L-3] which have similarly been characterised, including a crystal structure of [RuCl2(dmso){MeC(CH2SeMe)(3)}], which is fac-octahedral with S-bonded dmso. The [RuCl2(dmso)L-3] species react with Ag[CF3SO3] in MeCN to produce [Ru(MeCN)(3)L-3](2+) {L-3=MeC(CH2SeMe)(3) or MeC(CH2TePh)(3)}. The MeCN is labile and readily replaced by a second tridentate ligand to give mixed tripod ligand complexes including [Ru{MeC(CH2SMe)(3)}{MeC(CH2SeMe)(3)}][CF3SO3](2) and [Ru{MeC(CH2SeMe)(3)}{MeC(CH2TePh)(3)}][CF3SO3](2). Attempts to generate hydride species by reaction of [Ru(MeCN)(3)L-3](2+) with NaBH4 in ethanol bring about decomposition.
| Item Type: | Article |
|---|---|
| Related URLs: | |
| Keywords: | organometallic macrocycle chemistry, crystal-structures, hds activity, ligands, benzothiophene, 1,4,7-trithiacyclononane, ditelluroether, mimicking, catalysts, cl |
| Subjects: | Q Science Q Science > QD Chemistry |
| Divisions: | University Structure - Pre August 2011 > School of Chemistry |
| Item ID: | 18863 |
| Date Deposited: | 20 Dec 2005 |
| Last Modified: | 01 Jun 2011 01:45 |
| Contributors: | Levason, W. (Author) Orchard, S. D. (Author) Reid, G. (Author) |
| Date: | 2000 |
| Status: | Published |
| URI: | http://eprints.soton.ac.uk/id/eprint/18863 |
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