摘要:
The organometallic Lewis acids (OC)5Re+ and CP(OC)(Ph3P)Ru+ form adducts with the O- and N-donors H2O, EtOH, THF, acetone, CH3CN, carboxylic esters, NCCH2CO2Me, BrCH2CO2Me, gamma-valerolactone, delta-valerolactam, epsilon-caprolactam, benzophenone imine. The chiral ethanol complex [Cp(OC)(Ph3P)Ru(HOEt)]+BF4- crystallizes as pairs of enantiomers S(Ru)S(O) and R(Ru)R(O) and the single crystal X-ray determination shows a hydrogen bridge between the oxygen atom of coordinated ethanol and the tetrafluoroborate anion.