Divergent Approach for Tris-Heteroleptic Cyclometalated Iridium Complexes Using Triisopropylsilylethynyl-Substituted Synthons.

ABSTRACT: Bis-heteroleptic cyclometalated iridium complexes of the form Ir(L^a)₂(acac), where L^a is a substituted 2-phenylpyridine derivative and acac is an acetylacetonato ligand, are a useful class of luminescent organometallic complexes for a range of applications. Related tris-heteroleptic complexes of the form Ir(L^a)(L^b)(acac) offer the potential advantage of greater functionality through the use of two different cyclometalated ligands but are, in general, more difficult to obtain. We report the synthesis of divergent bis- and tris-heteroleptic triisopropylsilylethynyl-substituted intermediate complexes that can be diversified using a "chemistry-on-the-complex" approach. We demonstrate the methodology through one-

SUBMITTER: Edkins RM 

PROVIDER: S-EPMC9477230 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature