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Comparative study of diastereoisomer interconversion in chiral BINOL-ate and diamine platinum complexes of conformationally flexible NUPHOS diphosphines

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  • A Thorough And Detailed Study Of Diastereointerconversion In The Chiral Platinum Complexes [(Nuphos)
  • Rate Data Revealed That This Process Obeys First-Order Relaxation Kinetics
  • And Rate Constants For Conversion Of The Minor To The Major Diastereoisomer Have Been Obtained
  • Eyring Analysis Of The Data Gave Deltah(Double Dagger) And Deltas(Double Dagger) Values Of 22-25 Kca
  • Respectively
  • In Combination With Computational Analysis
  • These Studies Indicate That Atropinversion Most Likely Occurs Via An On-Metal Pathway Involving A Pl
  • Substitution Of (S)-Binol For (S
  • S)-Dpen Results In A Marked Reduction In The Barrier To Atropinversion
  • A Deltah(Double Dagger) Value Of 17 Kcal Mol(-1) Has Been Determined For The Conversion Of Delta-[(P
  • S)-Dpen}]Cl-2 To Lambda-[(Ph-4-Nuphos)Pt{(S
  • S)-Dpen}]Cl-2
  • Which Could Indicate That An Alternative Mechanism Operates
  • Ecology
  • Medicine


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