Synthesis and characterisation of a bulky chelating bis(phosphine) ligand, 1,2-bis(dinbutylphosphino)ethane (DBPE), and its iron metal coordinated complexes, Fe(DBPE)2Cl2 and Fe(DBPE)2(CCC6H5)2

Jack Lewis; Ashok K. Kakkar; Paul R. Raithby; Klaus Fuhrmann; Richard H. Friend

doi:10.1016/0022-328X(92)80136-L

Synthesis and characterisation of a bulky chelating bis(phosphine) ligand, 1,2-bis(diⁿbutylphosphino)ethane (DBPE), and its iron metal coordinated complexes, Fe(DBPE)₂Cl₂ and Fe(DBPE)₂(CCC₆H₅)₂

Jack Lewis, Ashok K. Kakkar, Paul R. Raithby, Klaus Fuhrmann, Richard H. Friend

University of Cambridge

Research output: Contribution to journal › Article › peer-review

Abstract

The synthesis of a bulky chelating bis(phosphine) ligand, 1,2-bis(diⁿbutylphosphino)ethane, ⁿBu₂PCH₂CH₂PⁿBu₂ (1) (Bu = Butyl = C₄H₉) (DBPE) is reported. This ligand was coordinated to iron by treatment with FeCl₂ to yield Fe(DBPE)₂Cl₂ (2) which is an important precursor of a variety of σ-acetylide complexes, e.g. Fe(DBPE)₂ (CCC₆H₅)₂ (3). Complex 2 is paramagnetic in solution at room temperature and diamagnetic in the solid state. The optical absorption spectrum of 3 shows strong absorptions associated with π-π{black star} transition of the acetylenic unit.

Original language	English
Pages (from-to)	135-139
Number of pages	5
Journal	Journal of Organometallic Chemistry
Volume	433
Issue number	1-2
DOIs	https://doi.org/10.1016/0022-328X(92)80136-L
Publication status	Published - 21 Jul 1992

ASJC Scopus subject areas

Biochemistry
Physical and Theoretical Chemistry
Organic Chemistry
Inorganic Chemistry
Materials Chemistry

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10.1016/0022-328X(92)80136-L

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Lewis, J., Kakkar, A. K., Raithby, P. R., Fuhrmann, K., & Friend, R. H. (1992). Synthesis and characterisation of a bulky chelating bis(phosphine) ligand, 1,2-bis(diⁿbutylphosphino)ethane (DBPE), and its iron metal coordinated complexes, Fe(DBPE)₂Cl₂ and Fe(DBPE)₂(CCC₆H₅)₂. Journal of Organometallic Chemistry, 433(1-2), 135-139. https://doi.org/10.1016/0022-328X(92)80136-L

Synthesis and characterisation of a bulky chelating bis(phosphine) ligand, 1,2-bis(diⁿbutylphosphino)ethane (DBPE), and its iron metal coordinated complexes, Fe(DBPE)₂Cl₂ and Fe(DBPE)₂(CCC₆H₅)₂. / Lewis, Jack; Kakkar, Ashok K.; Raithby, Paul R. et al.
In: Journal of Organometallic Chemistry, Vol. 433, No. 1-2, 21.07.1992, p. 135-139.

Research output: Contribution to journal › Article › peer-review

Lewis, J, Kakkar, AK, Raithby, PR, Fuhrmann, K & Friend, RH 1992, 'Synthesis and characterisation of a bulky chelating bis(phosphine) ligand, 1,2-bis(diⁿbutylphosphino)ethane (DBPE), and its iron metal coordinated complexes, Fe(DBPE)₂Cl₂ and Fe(DBPE)₂(CCC₆H₅)₂', Journal of Organometallic Chemistry, vol. 433, no. 1-2, pp. 135-139. https://doi.org/10.1016/0022-328X(92)80136-L

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title = "Synthesis and characterisation of a bulky chelating bis(phosphine) ligand, 1,2-bis(dinbutylphosphino)ethane (DBPE), and its iron metal coordinated complexes, Fe(DBPE)2Cl2 and Fe(DBPE)2(CCC6H5)2",

abstract = "The synthesis of a bulky chelating bis(phosphine) ligand, 1,2-bis(dinbutylphosphino)ethane, nBu2PCH2CH2PnBu2 (1) (Bu = Butyl = C4H9) (DBPE) is reported. This ligand was coordinated to iron by treatment with FeCl2 to yield Fe(DBPE)2Cl2 (2) which is an important precursor of a variety of σ-acetylide complexes, e.g. Fe(DBPE)2 (CCC6H5)2 (3). Complex 2 is paramagnetic in solution at room temperature and diamagnetic in the solid state. The optical absorption spectrum of 3 shows strong absorptions associated with π-π{black star} transition of the acetylenic unit.",

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AU - Lewis, Jack

AU - Kakkar, Ashok K.

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AB - The synthesis of a bulky chelating bis(phosphine) ligand, 1,2-bis(dinbutylphosphino)ethane, nBu2PCH2CH2PnBu2 (1) (Bu = Butyl = C4H9) (DBPE) is reported. This ligand was coordinated to iron by treatment with FeCl2 to yield Fe(DBPE)2Cl2 (2) which is an important precursor of a variety of σ-acetylide complexes, e.g. Fe(DBPE)2 (CCC6H5)2 (3). Complex 2 is paramagnetic in solution at room temperature and diamagnetic in the solid state. The optical absorption spectrum of 3 shows strong absorptions associated with π-π{black star} transition of the acetylenic unit.

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Synthesis and characterisation of a bulky chelating bis(phosphine) ligand, 1,2-bis(diⁿbutylphosphino)ethane (DBPE), and its iron metal coordinated complexes, Fe(DBPE)₂Cl₂ and Fe(DBPE)₂(CCC₆H₅)₂

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