Polarography of tin(II) chloride in acetonitrile

Brajer, A.R.; Farley, T.E.; Kauffman, Jim W.; Young, Leslie; Williams, R. J.; Rogers, J. W.

doi:10.1016/s0003-2670(01)93657-8

Cited by 10 publications

(6 citation statements)

References 6 publications

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“…It was noted that the somewhat "suppressed" current of the first reduction wave is analogous to the effect observed in acidic aqueous chloride solutions of Sn(IV) (11). Polarographic and spectrophotometric data presented herein and the similarity of the electrolyte properties and the polarographic behavior of Sn(IV) chloride and Sn(II) chloride in ACN (5,6) suggest a different reduction mechanism. The polarographic and spectrophotometric behavior of Sn(IV) and Go(IV) chloride in the presence of added chloride ion demonstrates conclusively that the most negative polarographic wave corresponds to the reduction of the hexachlorostannate ion of each.…”

Section: Discussionmentioning

confidence: 77%

“…At a ratio of 2/1 TMAC to S n ( I V ) chloride a residue of the lower potential plateau remains and a weak anodic current attributable to the oxidation of free chloride is noted. The absence of detectable quantities of free chloride in Sn(IV) chloride or S n ( I V ) chloride-chloride solutions of a lower ratio is noted and is a significant observation (5). The E1/2 of the lower potential wave is shifted negatively vs. SCE and the higher potential wave positively upon addition of TMAC.…”

Section: Resultsmentioning

confidence: 93%

“…The polarographic and spectrophotometric data show that Sn(IV) and Ge(IV) chloride are nonelectrolytes in ACN solvent. Previous studies have shown that Sn(Ii) chloride behaves in a similar manner (5). Each o~ these neutral complexes acts as a ligand acceptor.…”

Section: Discussionmentioning

confidence: 90%

“…and to the 2e-reduction of the trichlorostannate ion (SnC13-) at the higher potential (5,6). The plateau current of the lower potential wave is controlled by the formation of the very stable SnC13-species which is only reducible at potentials of the second wave.…”

mentioning

confidence: 99%

“…The plateau current of the lower potential wave is controlled by the formation of the very stable SnC13-species which is only reducible at potentials of the second wave. Stannous chloride was found also to act as a Lewis acid toward various pyridine-N-oxide ligands; forming 1:1 adducts in ACN (5,7,8).…”

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confidence: 99%

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Polarography of Sn(IV) and Ge(IV) Chloride in Acetonitrile

Young¹,

Coles²,

Meux³

et al. 1980

J. Electrochem. Soc.

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Spectrophotometric and polarographic data demonstrate that the normal Sn(IV) and Ge(IV) chlorides are nonelectrolytes in the aprotic solvent acetonitrile. Both form the corresponding hexachloro species in the presence of chloride ion. Sn(IV) chloride is quantitatively converted to the hexachlorostannate ion while Ge(IV) chloride behaves as a weaker Lewis acid and exists in an equilibrium with the hexochloro ion in the presence of excess chloride. Each of the normal metal halides acts as a Lewis acceptor toward a test pyridine‐N‐oxide ligand in acetonitrile. Sn(IV) and Ge(IV) chloride are polarographically reduced in a 4e − step at which the production of the corresponding hexachloro ion, reducible only at higher potentials, controls the plateau current.

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Section: Discussionmentioning

confidence: 77%

Section: Resultsmentioning

confidence: 93%

Section: Discussionmentioning

confidence: 90%

mentioning

confidence: 99%

mentioning

confidence: 99%

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