Metal complexes of biologically important ligands, CVII. Formation of tris(pentamethylcyclopentadienyl-mu-L-prolinato-iridium) tris(trifluoromethanesulfonate) with chiral self recognition

The structure of the title complex consists of [Ir-3(C5Me5)(3)(L-prolinate) (3)](3+) complex cations and CF3SO3- anions. Each iridium atom is coordinat ed in a distorted tetrahedral manner by one cyclopentadienyl group, two car boxylate O atoms and the prolinate N atom. The iridium atoms are bridged by the carboxylate groups. Each of the three stereogenic iridium atoms has th e same (S) configuration, i. e. the trimerization of the [Ir(C5Me5)(L-proli nate)](+) fragment occurs with chiral self recognition.