Abstract
A new series of cationic (cyclooctadiene)Rh I complexes containing π-bound thiophene ligands has been prepared by allowing the tetrafluoroborate salt of either Rh(COD)(acetone) 2 + or Rh(COD)(methanol) 2 + to react with various thiophene derivatives in CHCl 3. The cationic Rh(COD) + monomer was prepared from the chloro-bridged dimer, [RhCl(COD)] 2, by halide abstraction using AgBF 4 in either acetone or methanol solvent. Stable 1:1 cationic complexes containing thiophene, 2-methylthiophene, and 2,5-dimethylthiophene were obtained following reaction with Rh(COD)(acetone) 2 +, whereas complexes containing benzothiophene and dibenzothiophene complexes were prepared in good yield using Rh(COD)(methanol) 2 +.
Published Version
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