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Synthesis and properties of new ditertiary stibines based upon o-, m- or p-xylyl and m- or p-phenylene backbones and their complexes with tungsten, iron and nickel carbonyls

Record type: Article

High yield syntheses for 1,2-, 1,3-, and 1,4-xylyl distibines (1,2-C6H4(CH2SbMe2)(2), 1,3-C6H4(CH2SbMe2)(2), 1,4-C6H4(CH2SbMe2)(2), respectively) from Me2SbCl (conveniently made in situ from Me2PhSb and HClgas) and the appropriate di-Grignard are reported. The 1,3- and 1,4-phenylene distibines, 1,3-C6H4(SbMe2)(2) and 1,4-C6H4(SbMe2)(2), were made similarly. The new ligands have been characterised by mass spectrometry, H-1 and C-13{H-1} NMR spectroscopy, and by the preparation of methiodide derivatives. The crystal structures of 1,4-C6H4(CH2SbMe2)(2) and [1,3-C6H4(CH2SbMe3)(2)] I-2 have been determined. The synthesis of 1,2-C6H4( CH2SbPh2)(2) has been achieved similarly in modest yield and the distibine converted into the tetra-iodo-derivative 1,2-C6H4(CH2SbPh2I2)(2). The coordination modes available to these ligands have been probed by the synthesis and characterisation of complexes with nickel, iron and tungsten carbonyls. The crystal structure of [{Fe(CO)(4)}(2){ {mu-1,3-C6H4(CH2SbMe2)(2)}] has been determined. The spectroscopic properties of these carbonyl derivatives have been compared with those of complexes of other antimony ligands, and in some cases with diphosphine and diarsine complexes, to probe the electronic properties of the new ligands.

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Citation

Levason, William, Matthews, Melissa L., Reid, Gillian and Webster, Michael (2004) Synthesis and properties of new ditertiary stibines based upon o-, m- or p-xylyl and m- or p-phenylene backbones and their complexes with tungsten, iron and nickel carbonyls Dalton Transactions, 2004, (1), pp. 51-58. (doi:10.1039/b312083j).

More information

Published date: 2004
Keywords: distibinomethane ligands, crystal-structures, proprietes vibrationnelles, coordination chemistry, molybdene carbonyle, tertiary, derivatives, halides, sb, di

Identifiers

Local EPrints ID: 20272
URI: http://eprints.soton.ac.uk/id/eprint/20272
ISSN: 1477-9226
PURE UUID: 1299cd6a-682b-4f4e-90a5-0d3c1afc0ee1
ORCID for William Levason: ORCID iD orcid.org/0000-0003-3540-0971

Catalogue record

Date deposited: 20 Feb 2006
Last modified: 17 Jul 2017 16:29

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Contributors

Author: William Levason ORCID iD
Author: Melissa L. Matthews
Author: Gillian Reid
Author: Michael Webster

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