η6-Indene- and η5-indole-(pentamethylcyclopentadienyl)-rhodium(III) and -iridium(III) hexafluorophosphates and their reversible deprotonation and rearrangement reactions to η5-indenyl- and η5-indolyl-complexes

Abstract

The preparations of [M(η⁵-C₅Me₅)(η⁶-indene)](PF₆)₂, (II), [M(η⁵-C₅Me₅)(η⁵-indenyl)](PF₆),(III),[M(η⁵-C₅Me₅)(η⁵-indole)](PF₆)₂(M = Rh or Ir), and [Ir(η⁵-C₅Me₅)(η⁵-indolyl)]PF₆ are reported; in the interconversion (III)+ H⁺⇌(II), for M = Ir protonation-deprotonation is fast and the rate-determining step is the movement of the metal from the 5- to the 6-membered ring and vice-versa.