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The Cu(I) complex containing trisulfonated triphenylphosphine (TPPTS), prepared utilizing a two-phase synthesis starting from the labile [Cu(MeCN)4]+ precursor, is stable toward disproportionation in aqueous solution. X-ray determination reveals a 1:2 metal/ligand stoichiometry in a polymeric network, the Cu(I) center adopting a distorted tetrahedral geometry. The sulfonate groups are no longer coordinated in aqueous media, generating a valuable starting material for developing aqueous inorganic and bioinorganic chemistry of Cu(I).
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Tisato et al. (2001) studied this question.
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