Ligand exchange processes in some iron-sulphur-carbonyl and -nitrosyl complexes

Anthony R. Butler; Christopher Glidewel; Andrew R. Hyde; Joseph McGinnis; Julie E. Seymour

doi:10.1016/S0277-5387(00)81451-5

Ligand exchange processes in some iron-sulphur-carbonyl and -nitrosyl complexes

Anthony R. Butler, Christopher Glidewel, Andrew R. Hyde, Joseph McGinnis, Julie E. Seymour

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Abstract

The complex [Fe₂(SMe)₂(CO)₆] undergoes stepwise exchange with Et₂S₂ to yield successively [Fe₂(SMe)(SEt)(CO)₆] and [Fe₂(SEt)₂(CO)₆]. Carbonyl complexes [Fe₂(SR)₂(CO)₆] are efficiently converted to the nitrosyls [Fe₂(SR)₂(NO)₄] by the action either of NO gas or of methanolic sodium nitrite: the analogous species [Fe₂S₂(CO)₆], [Fe₂S₂(CO)₆]^2-, and [Fe₃S₂(CO)₉] all, with methanolic nitrite, yield [Fe₄S₃(NO)₇]^-. This anion, [Fe₄S₃(NO)₇]^-, reacts with sulphur to give the cubane-like [Fe₄S₄(NO)₄]: the synthesis of its selenium analogue, [Fe₄Se₃(NO)₇]^- is described. The complexes [Fe₂(SR)₂(NO)₄] (R = Me, Et, Prⁿ, Prⁱ, Bu^t, PhCH₂) all consist of two isomers in solution, presumed to have structures of C_2h and C_2v, symmetry: activation parameters for the C_2h⇌C_2v reaction are reported.

Original language	English
Pages (from-to)	1045-1052
Number of pages	8
Journal	Polyhedron
Volume	2
Issue number	10
DOIs	https://doi.org/10.1016/S0277-5387(00)81451-5
Publication status	Published - 1 Jan 1983

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@article{d722155fab01456b96f1035f3bca538d,

title = "Ligand exchange processes in some iron-sulphur-carbonyl and -nitrosyl complexes",

abstract = "The complex [Fe2(SMe)2(CO)6] undergoes stepwise exchange with Et2S2 to yield successively [Fe2(SMe)(SEt)(CO)6] and [Fe2(SEt)2(CO)6]. Carbonyl complexes [Fe2(SR)2(CO)6] are efficiently converted to the nitrosyls [Fe2(SR)2(NO)4] by the action either of NO gas or of methanolic sodium nitrite: the analogous species [Fe2S2(CO)6], [Fe2S2(CO)6]2-, and [Fe3S2(CO)9] all, with methanolic nitrite, yield [Fe4S3(NO)7]-. This anion, [Fe4S3(NO)7]-, reacts with sulphur to give the cubane-like [Fe4S4(NO)4]: the synthesis of its selenium analogue, [Fe4Se3(NO)7]- is described. The complexes [Fe2(SR)2(NO)4] (R = Me, Et, Prn, Pri, But, PhCH2) all consist of two isomers in solution, presumed to have structures of C2h and C2v, symmetry: activation parameters for the C2h⇌C2v reaction are reported.",

author = "Butler, {Anthony R.} and Christopher Glidewel and Hyde, {Andrew R.} and Joseph McGinnis and Seymour, {Julie E.}",

year = "1983",

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doi = "10.1016/S0277-5387(00)81451-5",

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T1 - Ligand exchange processes in some iron-sulphur-carbonyl and -nitrosyl complexes

AU - Butler, Anthony R.

AU - Glidewel, Christopher

AU - Hyde, Andrew R.

AU - McGinnis, Joseph

AU - Seymour, Julie E.

PY - 1983/1/1

Y1 - 1983/1/1

N2 - The complex [Fe2(SMe)2(CO)6] undergoes stepwise exchange with Et2S2 to yield successively [Fe2(SMe)(SEt)(CO)6] and [Fe2(SEt)2(CO)6]. Carbonyl complexes [Fe2(SR)2(CO)6] are efficiently converted to the nitrosyls [Fe2(SR)2(NO)4] by the action either of NO gas or of methanolic sodium nitrite: the analogous species [Fe2S2(CO)6], [Fe2S2(CO)6]2-, and [Fe3S2(CO)9] all, with methanolic nitrite, yield [Fe4S3(NO)7]-. This anion, [Fe4S3(NO)7]-, reacts with sulphur to give the cubane-like [Fe4S4(NO)4]: the synthesis of its selenium analogue, [Fe4Se3(NO)7]- is described. The complexes [Fe2(SR)2(NO)4] (R = Me, Et, Prn, Pri, But, PhCH2) all consist of two isomers in solution, presumed to have structures of C2h and C2v, symmetry: activation parameters for the C2h⇌C2v reaction are reported.

AB - The complex [Fe2(SMe)2(CO)6] undergoes stepwise exchange with Et2S2 to yield successively [Fe2(SMe)(SEt)(CO)6] and [Fe2(SEt)2(CO)6]. Carbonyl complexes [Fe2(SR)2(CO)6] are efficiently converted to the nitrosyls [Fe2(SR)2(NO)4] by the action either of NO gas or of methanolic sodium nitrite: the analogous species [Fe2S2(CO)6], [Fe2S2(CO)6]2-, and [Fe3S2(CO)9] all, with methanolic nitrite, yield [Fe4S3(NO)7]-. This anion, [Fe4S3(NO)7]-, reacts with sulphur to give the cubane-like [Fe4S4(NO)4]: the synthesis of its selenium analogue, [Fe4Se3(NO)7]- is described. The complexes [Fe2(SR)2(NO)4] (R = Me, Et, Prn, Pri, But, PhCH2) all consist of two isomers in solution, presumed to have structures of C2h and C2v, symmetry: activation parameters for the C2h⇌C2v reaction are reported.

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JO - Polyhedron

JF - Polyhedron

IS - 10

ER -

Ligand exchange processes in some iron-sulphur-carbonyl and -nitrosyl complexes

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