American Chemical Society
ic202013m_si_002.cif (31.18 kB)

Chiral Induction via the Disassembly of Diruthenium(II,III) Tetraacetate by Chiral Diphosphines

Download (31.18 kB)
posted on 2011-12-05, 00:00 authored by Ramesh Vadavi, Eamonn D. Conrad, D. Ian Arbuckle, T. Stanley Cameron, Ernest Essoun, Manuel A. S. Aquino
[Ru2(μ-O2CCH3)4(MeOH)2]­(PF6) reacts with chiral diphosphines (R,R)- and (S,S)-chiraphos, leading to disassembly and production of the enantiomers Λ-[Ru­(η2-O2CCH3)­(η2-(R,R)-chiraphos)2]­(PF6) and Δ-[Ru­(η2-O2CCH3)­(η2-(S,S)-chiraphos)2]­(PF6) in high yield and purity. X-ray crystallography and solid-state circular dichroism (CD) show that only the indicated isomers are present in the solid state. Solution CD measurements also indicate their predominance in solution.