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Two-equivalent elec...
Two-equivalent electrochemical reduction of a cyano-complex Tl-III(CN)(2) (+) and the novel di-nuclear compound (CN)(5)Pt-II-Tl-III (0)
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Dolidze, T. D. (författare)
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Khoshtariya, D. E. (författare)
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- Behm, Mårten (författare)
- KTH,Tillämpad elektrokemi
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- Lindbergh, Göran (författare)
- KTH,Tillämpad elektrokemi
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- Glaser, Julius (författare)
- KTH,Oorganisk kemi
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(creator_code:org_t)
- Elsevier BV, 2005
- 2005
- Engelska.
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Ingår i: Electrochimica Acta. - : Elsevier BV. - 0013-4686 .- 1873-3859. ; 50:22, s. 4444-4450
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Extending our recent insights in two-electron transfer microscopic mechanisms for a Tl-III/Tl-I redox system, the electrochemical response of glassy carbon electrode in acidified solutions of Tl-III (ClO4)(3) containing different concentrations of sodium cyanide has been extensively studied for the first time by use of cyclic voltammetry and the CVSIM curve simulation PC program. The complex [Tl-III(CN)(2)](+) has been thoroughly identified electrochemically and shown to display a single welldefined reduction wave (which has no anodic counterpart), ascribed to the two-equivalent process yielding [Tl-I(aq)](+). This behavior is similar to that of [Tl-III (aq)](3+) ion in the absence of sodium cyanide, disclosed in the previous work, and is compatible with the quasi-simultaneous yet sequential two-electron transfer pattern (with two reduction waves merged in one), implying the rate-determining first electron transfer step (resulting in the formation of a covalently interacting di-thallium complex as a metastable intermediate), and the fast second electron transfer step. Some preliminary studies of the two-equivalent reduction of directly metal-metal bonded stable compound [(CN)(5)Pt-II-Tl-III](0) has been also performed displaying two reduction waves compatible with a true sequential pattern.
Nyckelord
- thallium(III)
- cyano-complexes
- two-electron transfer
- cyclic voltammetry
- di-nuclear complexes
- metal-metal bond
- stationary electrode polarography
- platinum-thallium compounds
- 2-electron transfer
- aqueous-solution
- molybdenum
- mechanisms
- systems
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- art (ämneskategori)
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