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- W2000653227 abstract "Abstract The electrochemical reduction of [PtCl2L2]+ L2* (L2 and L2* = Ph2PCH2CH2 PPh2, dppe; Cy2PCH2CH2PCy2, dcpe; nBu2PCH2CH2PnBu2, dbpe) systems may proceed via two different routes. Path 1 involves reduction of [PtCl2L2] to produce [PtL2] which is trapped by L2* to form [PtL2L2*]. Path 2 involves prior reaction of [PtCl2L2] with L2* to form [PtL2L2*]2+ which is reduced to form [PtL2L2*]. The extent of prior reaction of [PtCl2L2] with L2* has been monitored by both cyclic voltammetry, which detects only the electroactive components in solution, and by 31P{1H} NMR spectroscopy, which allows structural assignments to be made. Bulk electrolyses have been performed at potentials sufficient to reduce both [PtCl2L2] and [PtL2L2*]2+ and also at potentials sufficient to reduce [PtL2L2*]2+ but not to reduce [PtCl2L2]. Product analyses by 31P{1H} NMR spectroscopy show that path 1 is operative in sterically congested systems, path 2 is operative in uncongested systems, and both pathways may be operative in systems with intermediate steric congestion. Reactions via path 2 produce [PtL2L2*] efficiently, whereas reactions via path 1 are complicated by alternative trapping reactions of [PtL2] with the solvent/electrolyte system which compete with trapping by L2*." @default.
- W2000653227 created "2016-06-24" @default.
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- W2000653227 date "1991-01-01" @default.
- W2000653227 modified "2023-09-27" @default.
- W2000653227 title "Electrochemical reduction of platinum(II) complexes containing bidentate tertiary phosphine ligands: evidence for the generation of non-linear two-coordinate complexes" @default.
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- W2000653227 doi "https://doi.org/10.1016/s0277-5387(00)86907-7" @default.
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