PMID: 11929259Apr 4, 2002Paper

Acetylide-bridged organometallic oligomers via the photochemical metathesis of methyl-iron(II) complexes

Journal of the American Chemical Society
Leslie D FieldPeter Turner

Abstract

The acetylido methyl iron(II) complexes, cis/trans-[Fe(dmpe)(2)(C[triple bond]CR)(CH(3))] (1) and trans-[Fe(depe)(2)(C[triple bond]CR)(CH(3))] (2) (dmpe = 1,2-dimethylphoshinoethane; depe = 1,2-diethylphosphinoethane), were synthesized by transmetalation from the corresponding alkyl halide complexes. Acetylido methyl iron(II) complexes were also formed by transmetalation from the chloride complexes, trans-[Fe(dmpe)(2)(C[triple bond]CR)(Cl)] or trans-[Fe(depe)(2)(C[triple bond]CR)(Cl)]. The structure of trans-[Fe(dmpe)(2)(C[triple bond]CC(6)H(5))(CH(3))] (1a) was determined by single-crystal X-ray diffraction. The methyl acetylido iron complexes, [Fe(dmpe)(2)(C[triple bond]CR)(CH(3))] (1), are thermally stable in the presence of acetylenes; however, under UV irradiation, methane is lost with the formation of a metal bisacetylide. Photochemical metathesis of cis- or trans-[Fe(dmpe)(2)(CH(3))(C[triple bond]CR)] (R = C(6)H(5) (1a), 4-C(6)H(4)OCH(3) (1b)) with terminal acetylenes was used to selectively synthesize unsymmetrically substituted iron(II) bisacetylide complexes of the type trans-[Fe(dmpe)(2)(C[triple bond]CR)(C[triple bond]CR')] [R = Ph, R' = Ph (6a), 4-CH(3)OC(6)H(4) (6b), (t)()Bu (6c), Si(CH(3))(3) (6d), (CH(2))(4)C[tr...Continue Reading

References

Aug 6, 2000·Acta Crystallographica. Section A, Foundations of Crystallography·H D Flack, G Bernardinelli
Apr 24, 1996·Inorganic Chemistry·Leslie D. Field, Iain P. Thomas

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Citations

Jul 20, 2011·Inorganic Chemistry·Zhi CaoTong Ren
May 21, 2010·Chemical Communications : Chem Comm·Wesley A HoffertMatthew P Shores
Apr 22, 2016·Angewandte Chemie·Orestes Rivada-WheelaghanDavid Milstein
May 8, 2008·Inorganic Chemistry·Louise A Berben, Stosh A Kozimor
May 7, 2015·Inorganic Chemistry·Leslie D FieldHsiu L Li
Nov 10, 2011·Journal of the American Chemical Society·Wesley A HoffertMatthew P Shores
Feb 15, 2013·Journal of the American Chemical Society·Franziska LisselHeinz Berke
May 22, 2007·Inorganic Chemistry·Li-Bin GaoZhong-Ning Chen

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