Mono‐ and bis‐tolylterpyridine iridium(III) complexes

The first structure report of trichlorido[4′‐( p ‐tolyl)‐2,2′:6′,2′′‐terpyridine]iridium(III) dimethyl sulfoxide solvate, [IrCl 3 (C 22 H 17 N 3 )]·C 2 H 6 OS, (I), is presented, along with a higher‐symmetry setting of previously reported bis[4′‐( p ‐tolyl)‐2,2′:6′,2′′‐terpyridine]iridium(III) tris(hexafluoridophosphate) acetonitrile disolvate, [Ir(C 22 H 17 N 3 ) 2 ](PF 6 ) 3 ·2C 2 H 3 N, (II) [Yoshikawa, Yamabe, Kanehisa, Kai, Takashima & Tsukahara (2007). Eur. J. Inorg. Chem. pp. 1911–1919]. For (I), the data were collected with synchrotron radiation and the dimethyl sulfoxide solvent molecule is disordered over three positions, one of which is an inversion center. The previously reported structure of (II) is presented in the more appropriate C 2/ c space group. The iridium complex and one PF 6 − anion lie on twofold axes in this structure, making half of the molecule unique.