Formation of ethyl- and hydrido-iridium(III) complexes from the reaction of hydrated iridium(III) chloride with a pyridine-containing tetra-azamacrocycle in aqueous ethanolic solution. Crystal structure of trans-[IrCl(Et)L1][PF6]{L1= 3,7,11-trimethyl-3,7,11,17-tetra-aza-bicyclo[11.3.1]heptadeca-1(17),13,15-triene}

Abstract

Reaction of a pyridine-containing tetra-azamacrocycle, 3,7,11-trimethyl-3,7,11,17-tetra-azabicyclo[11.3.1]heptadeca-1(17),13,15-triene, L¹, with IrCl₃·3H₂O in refluxing aqueous ethanolic solution gives a mixture of hydrido-iridium(III) complexes, together with substantial amounts of trans-[IrCl(Et)L¹]⁺, as shown by NMR measurements, FAB MS, and the single crystal X-ray structure of the ethyl complex.