Abstract
Reaction of K2PtCl6 with the tripodal ligand tame [1,1,1-tris(aminomethyl)ethane] in dimethylformamide catalysed by K2PtCl4 afforded the octahedral bis(tridentate ligand) [Pt(tame)2]4+ ion. The cyclic voltammogram of [Pt(tame)2]4+ in aqueous media showed an irreversible reduction of the six-co-ordinate platinum(IV) species to PtII and bulk electrochemical reduction of the [PtIV(tame)2]4+ ion quantitatively produced a square planar platinum(II) complex [Pt(tame)2]2+. Crystallographic analysis of the protonated complex [PtII(Htame)2][ZnCl4] 2·2H2O, showed two dissociated nitrogen atoms on opposite sides of the PtN42+ co-ordination plane which has typical PtII-N bond lengths (2.042(6) Å). The routes to the formation of the [PtIV(tame)2]4+ ion and its reduced product are addressed.
Original language | English |
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Pages (from-to) | 2171-2175 |
Number of pages | 5 |
Journal | Journal of the Chemical Society. Dalton Transactions |
Issue number | 13 |
DOIs | |
Publication status | Published - 1999 |