221593-58-4Relevant articles and documents
Synthesis of a configurationally stable three-legged piano-stool complex
Therrien, Bruno,Ward, Thomas R.
, p. 405 - 408 (2007/10/03)
A transition metal Lewis acid with metal-centered chirality is obtained by η6:η1:η1 coordination of a 1,3-disubstituted arene with a phosphane and a pyrazole tether (PArN) to ruthenium. The three-legged piano-stool complex [{η6:η1:η1-(PArN)}-Ru(H2O)]2+ (structure depicted) displays remarkable configurational stability. Its planar chiral, neutral precursor [{η6:η1-(PArN)}RuCl2] can be resolved by preparative HPLC.