Iron Complexes Containing the Tripodal Tetraphosphine Ligand P(CH2CH2PMe2)3

Leslie D. Field; Barbara A. Messerle; Ronald J. Smernik; Trevor W. Hambley; Peter Turner

Iron Complexes Containing the Tripodal Tetraphosphine Ligand P(CH₂CH₂PMe₂)₃

Leslie D. Field^*, Barbara A. Messerle, Ronald J. Smernik, Trevor W. Hambley, Peter Turner

^*Corresponding author for this work

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

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Abstract

The preparation and characterization of iron(II) complexes containing the tripodal tetraphosphine ligand tris [2(dimethylphosphino)ethyl]phosphine, P(CH₂CH₂PMe₂)₃ (PP₃, 1), are reported. The complex FeCl₂(PP₃) (2) was formed by the reaction of PP₃ with anhydrous iron(II) chloride. The complexes FeHCl(PP₃) (3) and FeH₂(PP₃) (4) were formed by the reaction of 2 with lithium aluminum hydride. Likewise, the complexes FeMeCl(PP₃) (5) and FeMe₂(PP₃) (6) were formed by the reaction of 2 with methyllithium or dimethylmagnesium. Reaction of 2 with CO afforded a mixture of isomeric carbonyl chloride complexes [Fe(CO)Cl(PP₂)]⁺ (7 and 8). Reaction of 2 with PPh₃ afforded [Fe(PPh₃)Cl(PP₃)]⁺ (9). The air-sensitive complexes 2-9 were characterized by multinuclear NMR spectroscopy, and 9 was characterized by X-ray crystallography. Crystals of 9 (BPh₄ salt), C₅₄H₆₅BClFeP₅, M 971.09, are monoclinic, space group P2₁/c, a = 13.246(3) Å, b = 30.314(2) Å, c= 14.338(2) Å,β= 100.92(2)°, Z = 4; R = 0.058.

Original language	English
Pages (from-to)	2884-2892
Number of pages	9
Journal	Inorganic Chemistry
Volume	36
Issue number	13
Publication status	Published - 1997
Externally published	Yes

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@article{26cfe9f7fc984111ba185a2195457304,

title = "Iron Complexes Containing the Tripodal Tetraphosphine Ligand P(CH2CH2PMe2)3 ",

abstract = "The preparation and characterization of iron(II) complexes containing the tripodal tetraphosphine ligand tris [2(dimethylphosphino)ethyl]phosphine, P(CH2CH2PMe2)3 (PP3, 1), are reported. The complex FeCl2(PP3) (2) was formed by the reaction of PP3 with anhydrous iron(II) chloride. The complexes FeHCl(PP3) (3) and FeH2(PP3) (4) were formed by the reaction of 2 with lithium aluminum hydride. Likewise, the complexes FeMeCl(PP3) (5) and FeMe2(PP3) (6) were formed by the reaction of 2 with methyllithium or dimethylmagnesium. Reaction of 2 with CO afforded a mixture of isomeric carbonyl chloride complexes [Fe(CO)Cl(PP2)]+ (7 and 8). Reaction of 2 with PPh3 afforded [Fe(PPh3)Cl(PP3)]+ (9). The air-sensitive complexes 2-9 were characterized by multinuclear NMR spectroscopy, and 9 was characterized by X-ray crystallography. Crystals of 9 (BPh4 salt), C54H65BClFeP5, M 971.09, are monoclinic, space group P21/c, a = 13.246(3) {\AA}, b = 30.314(2) {\AA}, c= 14.338(2) {\AA},β= 100.92(2)°, Z = 4; R = 0.058.",

author = "Field, \{Leslie D.\} and Messerle, \{Barbara A.\} and Smernik, \{Ronald J.\} and Hambley, \{Trevor W.\} and Peter Turner",

year = "1997",

language = "English",

volume = "36",

pages = "2884--2892",

journal = "Inorganic Chemistry",

issn = "0020-1669",

publisher = "American Chemical Society",

number = "13",

}

TY - JOUR

T1 - Iron Complexes Containing the Tripodal Tetraphosphine Ligand P(CH2CH2PMe2)3

AU - Field, Leslie D.

AU - Messerle, Barbara A.

AU - Smernik, Ronald J.

AU - Hambley, Trevor W.

AU - Turner, Peter

PY - 1997

Y1 - 1997

N2 - The preparation and characterization of iron(II) complexes containing the tripodal tetraphosphine ligand tris [2(dimethylphosphino)ethyl]phosphine, P(CH2CH2PMe2)3 (PP3, 1), are reported. The complex FeCl2(PP3) (2) was formed by the reaction of PP3 with anhydrous iron(II) chloride. The complexes FeHCl(PP3) (3) and FeH2(PP3) (4) were formed by the reaction of 2 with lithium aluminum hydride. Likewise, the complexes FeMeCl(PP3) (5) and FeMe2(PP3) (6) were formed by the reaction of 2 with methyllithium or dimethylmagnesium. Reaction of 2 with CO afforded a mixture of isomeric carbonyl chloride complexes [Fe(CO)Cl(PP2)]+ (7 and 8). Reaction of 2 with PPh3 afforded [Fe(PPh3)Cl(PP3)]+ (9). The air-sensitive complexes 2-9 were characterized by multinuclear NMR spectroscopy, and 9 was characterized by X-ray crystallography. Crystals of 9 (BPh4 salt), C54H65BClFeP5, M 971.09, are monoclinic, space group P21/c, a = 13.246(3) Å, b = 30.314(2) Å, c= 14.338(2) Å,β= 100.92(2)°, Z = 4; R = 0.058.

AB - The preparation and characterization of iron(II) complexes containing the tripodal tetraphosphine ligand tris [2(dimethylphosphino)ethyl]phosphine, P(CH2CH2PMe2)3 (PP3, 1), are reported. The complex FeCl2(PP3) (2) was formed by the reaction of PP3 with anhydrous iron(II) chloride. The complexes FeHCl(PP3) (3) and FeH2(PP3) (4) were formed by the reaction of 2 with lithium aluminum hydride. Likewise, the complexes FeMeCl(PP3) (5) and FeMe2(PP3) (6) were formed by the reaction of 2 with methyllithium or dimethylmagnesium. Reaction of 2 with CO afforded a mixture of isomeric carbonyl chloride complexes [Fe(CO)Cl(PP2)]+ (7 and 8). Reaction of 2 with PPh3 afforded [Fe(PPh3)Cl(PP3)]+ (9). The air-sensitive complexes 2-9 were characterized by multinuclear NMR spectroscopy, and 9 was characterized by X-ray crystallography. Crystals of 9 (BPh4 salt), C54H65BClFeP5, M 971.09, are monoclinic, space group P21/c, a = 13.246(3) Å, b = 30.314(2) Å, c= 14.338(2) Å,β= 100.92(2)°, Z = 4; R = 0.058.

UR - https://www.scopus.com/pages/publications/0001425266

M3 - Article

C2 - 11669927

AN - SCOPUS:0001425266

SN - 0020-1669

VL - 36

SP - 2884

EP - 2892

JO - Inorganic Chemistry

JF - Inorganic Chemistry

IS - 13

ER -

Iron Complexes Containing the Tripodal Tetraphosphine Ligand P(CH₂CH₂PMe₂)₃

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