Oxidative Addition of Hydrosilanes, Hydrogermane, and Hydrostannane to Cyclopentadienylcobalt(I) Bearing a Pendant Phosphane Ligand: Cyclopentadienylhydridocobalt(III) Chelate Complexes with Silyl, Germyl, and Stannyl Ligands

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Original languageEnglish
Pages (from-to)5463-5467
Number of pages5
JournalOrganometallics
Volume22
Issue number26
Publication statusPublished - 18 Nov 2003

Abstract

Oxidative addition of hydrosilanes, a hydrogermane, and a hydrostannane to the ((cyclopentadienylalkyl)phosphane)cobalt(I) chelate 1 results in the formation of cyclopentadienylhydridocobalt(III) complexes having a tethered phosphorus ligand and silyl (rac-4-rac-8), germyl (rac-10), and stannyl substituents (rac-11). The pseudo-four-coordinate complexes are chiral. The X-ray structures of 5 and 7 have been determined. Variable-temperature NMR spectra indicate racemization in solution due to reversible dissociation of the phosphorus ligand. The barrier of this process has been estimated to be in the range of 13-16 kcal/mol.

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Oxidative Addition of Hydrosilanes, Hydrogermane, and Hydrostannane to Cyclopentadienylcobalt(I) Bearing a Pendant Phosphane Ligand: Cyclopentadienylhydridocobalt(III) Chelate Complexes with Silyl, Germyl, and Stannyl Ligands. / Yong, Li; Hofer, Edgar; Wartchow, Rudolf et al.
In: Organometallics, Vol. 22, No. 26, 18.11.2003, p. 5463-5467.

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title = "Oxidative Addition of Hydrosilanes, Hydrogermane, and Hydrostannane to Cyclopentadienylcobalt(I) Bearing a Pendant Phosphane Ligand: Cyclopentadienylhydridocobalt(III) Chelate Complexes with Silyl, Germyl, and Stannyl Ligands",
abstract = "Oxidative addition of hydrosilanes, a hydrogermane, and a hydrostannane to the ((cyclopentadienylalkyl)phosphane)cobalt(I) chelate 1 results in the formation of cyclopentadienylhydridocobalt(III) complexes having a tethered phosphorus ligand and silyl (rac-4-rac-8), germyl (rac-10), and stannyl substituents (rac-11). The pseudo-four-coordinate complexes are chiral. The X-ray structures of 5 and 7 have been determined. Variable-temperature NMR spectra indicate racemization in solution due to reversible dissociation of the phosphorus ligand. The barrier of this process has been estimated to be in the range of 13-16 kcal/mol.",
author = "Li Yong and Edgar Hofer and Rudolf Wartchow and Holger Butensch{\"o}n",
year = "2003",
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day = "18",
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journal = "Organometallics",
issn = "0276-7333",
publisher = "American Chemical Society",
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TY - JOUR

T1 - Oxidative Addition of Hydrosilanes, Hydrogermane, and Hydrostannane to Cyclopentadienylcobalt(I) Bearing a Pendant Phosphane Ligand

T2 - Cyclopentadienylhydridocobalt(III) Chelate Complexes with Silyl, Germyl, and Stannyl Ligands

AU - Yong, Li

AU - Hofer, Edgar

AU - Wartchow, Rudolf

AU - Butenschön, Holger

PY - 2003/11/18

Y1 - 2003/11/18

N2 - Oxidative addition of hydrosilanes, a hydrogermane, and a hydrostannane to the ((cyclopentadienylalkyl)phosphane)cobalt(I) chelate 1 results in the formation of cyclopentadienylhydridocobalt(III) complexes having a tethered phosphorus ligand and silyl (rac-4-rac-8), germyl (rac-10), and stannyl substituents (rac-11). The pseudo-four-coordinate complexes are chiral. The X-ray structures of 5 and 7 have been determined. Variable-temperature NMR spectra indicate racemization in solution due to reversible dissociation of the phosphorus ligand. The barrier of this process has been estimated to be in the range of 13-16 kcal/mol.

AB - Oxidative addition of hydrosilanes, a hydrogermane, and a hydrostannane to the ((cyclopentadienylalkyl)phosphane)cobalt(I) chelate 1 results in the formation of cyclopentadienylhydridocobalt(III) complexes having a tethered phosphorus ligand and silyl (rac-4-rac-8), germyl (rac-10), and stannyl substituents (rac-11). The pseudo-four-coordinate complexes are chiral. The X-ray structures of 5 and 7 have been determined. Variable-temperature NMR spectra indicate racemization in solution due to reversible dissociation of the phosphorus ligand. The barrier of this process has been estimated to be in the range of 13-16 kcal/mol.

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U2 - 10.1021/om030581b

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JO - Organometallics

JF - Organometallics

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ER -

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