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 original | English |
|---|---|
| Páginas (desde-hasta) | 2225-2230 |
| Número de páginas | 6 |
| Publicación | Polyhedron |
| Volumen | 17 |
| N.º | 13-14 |
| Estado | Published - 1998 |
Huella dactilar
ASJC Scopus subject areas
- Physical and Theoretical Chemistry
- Inorganic Chemistry
- Materials Chemistry
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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
UR - http://www.scopus.com/inward/record.url?scp=0040005856&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0040005856
VL - 17
SP - 2225
EP - 2230
JO - Polyhedron
JF - Polyhedron
SN - 0277-5387
IS - 13-14
ER -