Abstract
We synthesized the tris-cyclometallated iridium complexes containing the substituted styryl groups and their saturated analogs. As the styryl iridium complexes, Ir(F-ppy-4-CH=CHC6H4R)3 (where R = Me, NMe2, OMe) were prepared via direct functionalization of the methyl groups in the ppy (2-phenylpyridine) ligand at the iridium complexes. The corresponding saturated analogs, Ir(F-ppy-4-CH2CH2C6H4R)3 (where R = Me, NMe2), were synthesized during the two step reactions of the IrCl3·xH2O with F-ppy-4-CH=CHC6H4R via in situ hydrogenation. Their photophysical properties were investigated both in solution and in film. The longer π-conjugation in the cyclometallating ligands leads to the bathochromic shift in photoluminescence of their iridium complexes. Among R groups, the NMe2 end group had the strongest push-pull effect with the F group at the other end, and led to the effective control of the ILCT transition.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
