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- W1964782572 abstract "Reaction of (dppe)Pt(CO3) with (1S,2S)-HN(R)CHPhCHPhNH(R) (R = SO2CF3, 1a; SO2-4-tBuC6H4, 1b) and (1S,2R)-HN(R)CHPhCHPhOH (R = SO2CF3, 3a; SO2-4-tBuC6H4, 3b) leads to well-behaved chiral (dppe)Pt[N(R)CHPhCHPhN(R)] (R = SO2CF3, 2a; SO2-4-tBuC6H4, 2b) and (dppe)Pt[N(R)CHPhCHPhO] (R = SO2CF3, 4a; SO2-4-tBuC6H4, 4b) complexes. X-ray structural analysis of 2a and 4b reveal that the Pt−N bond lengths are long with the triflamide bond lengths being slightly longer than the aryl sulfonamide bond lengths (∼2.12 and 2.06 Å, respectively). Solid-state (X-ray) and solution (1H NMR) structural analysis indicates that the phenyl groups α to the sulfonamide nitrogen adopt an axial conformation, as characteristic 3JPt-H coupling constants are observed for equatorial, but not axially disposed hydrogens in the heterocycle. Relative binding affinities of 1a/b and 3a/b to the (dppe)Pt fragment were determined through pairwise ligand exchange reactions: Tf > SO2Ar and NN > NO." @default.
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- W1964782572 date "1999-02-05" @default.
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- W1964782572 title "Synthesis and Characterization of Chiral Platinum(II) Sulfonamides: (dppe)Pt(NN) and (dppe)Pt(NO) Complexes" @default.
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- W1964782572 doi "https://doi.org/10.1021/ic981287s" @default.
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