Redox properties of 17-electron thiolate complexes of cyclopentadienyl iron (III)

C. Díaz, E. Araya, M. A. Santa Ana

Resultado de la investigación: Article

8 Citas (Scopus)

Resumen

The redox electrochemistry of iron (III) thiolate complexes of the type [CpFe(dppe)-SR]PF6 R=CH3, C3H7, C6H5, p-C6H4Br and thiobenzothiazole has been examined by cyclic voltammetry, coulometry and spectroelectrochemistry methods. Four redox waves were observed in the range - 1.5 to + 1.5V (S.C.E) in CH2Cl2. Around 0.0 V the metal centered reduction Fe (III)→Fe (II) process was observed, while that around +0.5 V the wave observed was attributed to a ligand centered oxidation. Strongly irreversible waves of oxidation near 1.3 V were assigned to the oxidation of RSSR while a reduction wave also strongly irreversible at very high negative potential was attributed to the reduction of the RSSR free ligand, RSSR + 2e→2RS-. The redox wave observed for the disulphides compounds are discussed in terms of a reductive elimination of RSSR. Chemical and electrochemical reduction of the complexes [CpFe(dppe)-SR]PF6 was accomplished by the color changes blue → red-brown characteristic of the redox change 17e→18e.

Idioma originalEnglish
Páginas (desde-hasta)2225-2230
Número de páginas6
PublicaciónPolyhedron
Volumen17
N.º13-14
EstadoPublished - 1998

Huella dactilar

Iron
iron
Electrons
electrons
Oxidation
oxidation
Ligands
coulometry
Coulometers
Spectroelectrochemistry
ligands
disulfides
Electrochemistry
electrochemistry
Disulfides
Cyclic voltammetry
elimination
Metals
Oxidation-Reduction
Color

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

Citar esto

Díaz, C. ; Araya, E. ; Santa Ana, M. A. / Redox properties of 17-electron thiolate complexes of cyclopentadienyl iron (III). En: Polyhedron. 1998 ; Vol. 17, N.º 13-14. pp. 2225-2230.
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abstract = "The redox electrochemistry of iron (III) thiolate complexes of the type [CpFe(dppe)-SR]PF6 R=CH3, C3H7, C6H5, p-C6H4Br and thiobenzothiazole has been examined by cyclic voltammetry, coulometry and spectroelectrochemistry methods. Four redox waves were observed in the range - 1.5 to + 1.5V (S.C.E) in CH2Cl2. Around 0.0 V the metal centered reduction Fe (III)→Fe (II) process was observed, while that around +0.5 V the wave observed was attributed to a ligand centered oxidation. Strongly irreversible waves of oxidation near 1.3 V were assigned to the oxidation of RSSR while a reduction wave also strongly irreversible at very high negative potential was attributed to the reduction of the RSSR free ligand, RSSR + 2e→2RS-. The redox wave observed for the disulphides compounds are discussed in terms of a reductive elimination of RSSR. Chemical and electrochemical reduction of the complexes [CpFe(dppe)-SR]PF6 was accomplished by the color changes blue → red-brown characteristic of the redox change 17e→18e.",
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Díaz, C, Araya, E & Santa Ana, MA 1998, 'Redox properties of 17-electron thiolate complexes of cyclopentadienyl iron (III)', Polyhedron, vol. 17, n.º 13-14, pp. 2225-2230.

Redox properties of 17-electron thiolate complexes of cyclopentadienyl iron (III). / Díaz, C.; Araya, E.; Santa Ana, M. A.

En: Polyhedron, Vol. 17, N.º 13-14, 1998, p. 2225-2230.

Resultado de la investigación: Article

TY - JOUR

T1 - Redox properties of 17-electron thiolate complexes of cyclopentadienyl iron (III)

AU - Díaz, C.

AU - Araya, E.

AU - Santa Ana, M. A.

PY - 1998

Y1 - 1998

N2 - The redox electrochemistry of iron (III) thiolate complexes of the type [CpFe(dppe)-SR]PF6 R=CH3, C3H7, C6H5, p-C6H4Br and thiobenzothiazole has been examined by cyclic voltammetry, coulometry and spectroelectrochemistry methods. Four redox waves were observed in the range - 1.5 to + 1.5V (S.C.E) in CH2Cl2. Around 0.0 V the metal centered reduction Fe (III)→Fe (II) process was observed, while that around +0.5 V the wave observed was attributed to a ligand centered oxidation. Strongly irreversible waves of oxidation near 1.3 V were assigned to the oxidation of RSSR while a reduction wave also strongly irreversible at very high negative potential was attributed to the reduction of the RSSR free ligand, RSSR + 2e→2RS-. The redox wave observed for the disulphides compounds are discussed in terms of a reductive elimination of RSSR. Chemical and electrochemical reduction of the complexes [CpFe(dppe)-SR]PF6 was accomplished by the color changes blue → red-brown characteristic of the redox change 17e→18e.

AB - The redox electrochemistry of iron (III) thiolate complexes of the type [CpFe(dppe)-SR]PF6 R=CH3, C3H7, C6H5, p-C6H4Br and thiobenzothiazole has been examined by cyclic voltammetry, coulometry and spectroelectrochemistry methods. Four redox waves were observed in the range - 1.5 to + 1.5V (S.C.E) in CH2Cl2. Around 0.0 V the metal centered reduction Fe (III)→Fe (II) process was observed, while that around +0.5 V the wave observed was attributed to a ligand centered oxidation. Strongly irreversible waves of oxidation near 1.3 V were assigned to the oxidation of RSSR while a reduction wave also strongly irreversible at very high negative potential was attributed to the reduction of the RSSR free ligand, RSSR + 2e→2RS-. The redox wave observed for the disulphides compounds are discussed in terms of a reductive elimination of RSSR. Chemical and electrochemical reduction of the complexes [CpFe(dppe)-SR]PF6 was accomplished by the color changes blue → red-brown characteristic of the redox change 17e→18e.

KW - Iron complexes

KW - Phosphine-iron complexes

KW - Redox properties

KW - Thiolate

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M3 - Article

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VL - 17

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JO - Polyhedron

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