Electron paramagnetic resonance study of the reactions of tetrathiomolybdate with roussin salts and esters, and with some related iron nitrosyls

Anthony R. Butler; Christopher Glidewell; Ian L. Johnson; John C. Walton

doi:10.1016/S0277-5387(00)84268-0

Electron paramagnetic resonance study of the reactions of tetrathiomolybdate with roussin salts and esters, and with some related iron nitrosyls

Anthony R. Butler, Christopher Glidewell^*, Ian L. Johnson, John C. Walton

^*Corresponding author for this work

School of Chemistry

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

Abstract

The tetrathiomolybdate ion [MoS₄]^2- reacts in DMF solution with Roussin esters Fe₂(SR)₂(NO)₄ (R = Me, Et, n-Pr, i-Pr, n-Bu,t-Bu, n-C₅H₁₁) to yield the paramagnetic iron nitrosyls [Fe(NO)₂(SR)₂]^- (1), [Fe(NO)₂(S₂MoS₂]^- (2) and [Fe(NO)(S₂MOS₂)₂]^- (3). The new complexes (2) and (3) have been characterized by EPR spectroscopy and the assignment to them of constitutions based respectively upon tetrahedral and square pyramidal iron is supported by EHMO calculations. Fe₂(SPh)₂(NO)₄ with [MoS₄]^2- yields only [Fe(NO)₂(SPh)₂]^-, and preformed (3) reacts with PhS^- to give firstly EPR-silent species, and then [Fe(NO)₂(SPh)₂]^-. The mononitrosyl (3) can also be formed by reaction of [MoS₄]^2- with [Fe₄S₃(NO)₇]^-, Fe₄S₄(NO)₄, or Fe₂I₂(NO)₄.

Original language	English
Pages (from-to)	2085-2090
Number of pages	6
Journal	Polyhedron
Volume	6
Issue number	12
DOIs	https://doi.org/10.1016/S0277-5387(00)84268-0
Publication status	Published - 1 Jan 1987

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@article{746dd70018724290a5a5dbdeb8af9679,

title = "Electron paramagnetic resonance study of the reactions of tetrathiomolybdate with roussin salts and esters, and with some related iron nitrosyls",

abstract = "The tetrathiomolybdate ion [MoS4]2- reacts in DMF solution with Roussin esters Fe2(SR)2(NO)4 (R = Me, Et, n-Pr, i-Pr, n-Bu,t-Bu, n-C5H11) to yield the paramagnetic iron nitrosyls [Fe(NO)2(SR)2]- (1), [Fe(NO)2(S2MoS2]- (2) and [Fe(NO)(S2MOS2)2]- (3). The new complexes (2) and (3) have been characterized by EPR spectroscopy and the assignment to them of constitutions based respectively upon tetrahedral and square pyramidal iron is supported by EHMO calculations. Fe2(SPh)2(NO)4 with [MoS4]2- yields only [Fe(NO)2(SPh)2]-, and preformed (3) reacts with PhS- to give firstly EPR-silent species, and then [Fe(NO)2(SPh)2]-. The mononitrosyl (3) can also be formed by reaction of [MoS4]2- with [Fe4S3(NO)7]-, Fe4S4(NO)4, or Fe2I2(NO)4.",

author = "Butler, \{Anthony R.\} and Christopher Glidewell and Johnson, \{Ian L.\} and Walton, \{John C.\}",

year = "1987",

month = jan,

day = "1",

doi = "10.1016/S0277-5387(00)84268-0",

language = "English",

volume = "6",

pages = "2085--2090",

journal = "Polyhedron",

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publisher = "Elsevier",

number = "12",

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TY - JOUR

T1 - Electron paramagnetic resonance study of the reactions of tetrathiomolybdate with roussin salts and esters, and with some related iron nitrosyls

AU - Butler, Anthony R.

AU - Glidewell, Christopher

AU - Johnson, Ian L.

AU - Walton, John C.

PY - 1987/1/1

Y1 - 1987/1/1

N2 - The tetrathiomolybdate ion [MoS4]2- reacts in DMF solution with Roussin esters Fe2(SR)2(NO)4 (R = Me, Et, n-Pr, i-Pr, n-Bu,t-Bu, n-C5H11) to yield the paramagnetic iron nitrosyls [Fe(NO)2(SR)2]- (1), [Fe(NO)2(S2MoS2]- (2) and [Fe(NO)(S2MOS2)2]- (3). The new complexes (2) and (3) have been characterized by EPR spectroscopy and the assignment to them of constitutions based respectively upon tetrahedral and square pyramidal iron is supported by EHMO calculations. Fe2(SPh)2(NO)4 with [MoS4]2- yields only [Fe(NO)2(SPh)2]-, and preformed (3) reacts with PhS- to give firstly EPR-silent species, and then [Fe(NO)2(SPh)2]-. The mononitrosyl (3) can also be formed by reaction of [MoS4]2- with [Fe4S3(NO)7]-, Fe4S4(NO)4, or Fe2I2(NO)4.

AB - The tetrathiomolybdate ion [MoS4]2- reacts in DMF solution with Roussin esters Fe2(SR)2(NO)4 (R = Me, Et, n-Pr, i-Pr, n-Bu,t-Bu, n-C5H11) to yield the paramagnetic iron nitrosyls [Fe(NO)2(SR)2]- (1), [Fe(NO)2(S2MoS2]- (2) and [Fe(NO)(S2MOS2)2]- (3). The new complexes (2) and (3) have been characterized by EPR spectroscopy and the assignment to them of constitutions based respectively upon tetrahedral and square pyramidal iron is supported by EHMO calculations. Fe2(SPh)2(NO)4 with [MoS4]2- yields only [Fe(NO)2(SPh)2]-, and preformed (3) reacts with PhS- to give firstly EPR-silent species, and then [Fe(NO)2(SPh)2]-. The mononitrosyl (3) can also be formed by reaction of [MoS4]2- with [Fe4S3(NO)7]-, Fe4S4(NO)4, or Fe2I2(NO)4.

UR - https://www.scopus.com/pages/publications/4444283986

U2 - 10.1016/S0277-5387(00)84268-0

DO - 10.1016/S0277-5387(00)84268-0

M3 - Article

AN - SCOPUS:4444283986

SN - 0277-5387

VL - 6

SP - 2085

EP - 2090

JO - Polyhedron

JF - Polyhedron

IS - 12

ER -

Electron paramagnetic resonance study of the reactions of tetrathiomolybdate with roussin salts and esters, and with some related iron nitrosyls

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