Triazenide complexes of iridium. Evidence for [Ir(η1-N3Ph2)(HN3Ph2)(1,5-cod)], structures of [Ir2(μ-OMe)2(1,5-cod)2], [Ir2(μ-N3Ph2)2(1,5-cod)2], [Ir(η2-N3Ph2)(H)(SiPh3)(1,5-cod)], [Ir(η2-N3Ph2)(H)(SnPh3)(1,5-cod)] and [Ir(η2-N3Ph2)(SC6F5)2(1,5-cod)]

The reaction of [Ir2(μ-OMe)2(1,5-cod)2] with four equivalents of diphenyltriazene gives a product formulated as [Ir(η1-N3Ph2)(HN3Ph2)(1,5-cod)] which combines with SiHPh3, SnHPh3 and C6F5SH to give oxidative addition adducts and slowly dimerises in solution forming [Ir2(μ-N3Ph2)2(1,5-cod)2]. In the 1H NMR spectrum (see figure) recorded from toluene solution at 198 K signals from the triazenide and triazene ligands are broadened by fluxional processes.