Synthesis and properties of ditelluroether complexes of osmium, trans- OsCl2(L-L)(2) and trans- OsCl(PPh3) (L-L)(2) PF6 (L-L = o-C6H4(TeMe)(2), RTe(CH2)(3)TeR (R = Ph or Me))


Barton, A. J., Levason, W., Reid, G. and Tolhurst, V. A. (2000) Synthesis and properties of ditelluroether complexes of osmium, trans- OsCl2(L-L)(2) and trans- OsCl(PPh3) (L-L)(2) PF6 (L-L = o-C6H4(TeMe)(2), RTe(CH2)(3)TeR (R = Ph or Me)). Polyhedron, 19, (2), 235-240. (doi:10.1016/S0277-5387(99)00376-9).

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Description/Abstract

The complexes trans-[OsCl2(L-L)(2)] (L-L=o-C6H4(TeMe)(2), RTe(CH2)(3)TeR (R = Ph or Me)) have been prepared from trans-[OsCl2(dmso)(4)] and the ditelluroethers in ethanol. The reaction of [OsCl2(PPh3)(3)] with the ditelluroethers or MeSCH2CH2SMe or MeSe(CH2)(3)SeMe in ethanol in the presence of NH4PF6 gave trans-[OsCl(PPh3) (L-L)(2)]PF6. The complexes have been characterised by analysis, IR, UV-Vis and multinuclear NMR spectroscopy. The reaction of OsO4-HCl-EtOH with PhTe(CH2)(3)TePh results in chlorination of the ligand to PhTeCl2(CH2)(3)TePhCl2, identified by single-crystal X-ray study. The X-ray structure for trans-[OsCl2{PhTe(CH2)(3)TePh}(2)] is reported. The reaction of [OsCl2(dmso)(4)] with the distibine Ph2Sb(CH2)(3)SbPh2 affords trans-[OsCl2{Ph2Sb(CH2)(3)SbPh2}(2)] which has also been characterised crystallographically.

Item Type: Article
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Keywords: osmium, ditelluroether, x-ray structures higher oxidation-states, coordination chemistry, crystal-structures, platinum, ligands, cl, br
Subjects: Q Science
Q Science > QD Chemistry
Divisions: University Structure - Pre August 2011 > School of Chemistry
ePrint ID: 18883
Date Deposited: 16 Dec 2005
Last Modified: 27 Mar 2014 18:08
URI: http://eprints.soton.ac.uk/id/eprint/18883

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