Study of the Synthesis and Properties of Ir(III) Complexes Based on Phosphine Carbonylimide Derivative as Auxiliary Ligand. (30th October 2020)

• Record Type: Journal Article
• Authors: Guo, Qing‐Mei; Huang, Guo‐Li; Yin, Xin‐Ying; Bian, Jian‐Jian; Li, Xiao‐Mei; Teng, Ming‐Yu
• Is Part Of: Bulletin of the Korean Chemical Society. Volume 41:Number 12(2020)
• Page Start: 1184
• Page End: 1189
• Publication Date: 2020-10-30
• Subjects: Phosphine carbonylimide derivative -- Rigidochromic effect -- Iridium complexes -- Phosphorescent materials; Chemistry -- Periodicals; 540.5
• DOI: 10.1002/bkcs.12133
• Languages: English
• ISSNs: 0253-2964

Abstract

Abstract : Three iridium complexes of (dfppy)2 Ir(DAPB), (dfppy)2 Ir(DAPB), and (dfppy)2 Ir(DAPB) were synthesized by using phosphine carbonylimide derivative as auxiliary ligand and fluoro−/trifluoromethyl substituted 2‐phenylpyridine derivatives as primary ligands. Their quantum efficiency range from 19.4% to 38.5%, and show strong rigidochromic effect. The maximum emission wavelengths of solid‐state fluorescence have remarkable red shifts from 39 to 55 nm compared with these in CH2 Cl2 . Abstract : Three novel iridium(III) complexes which exhibited strong rigidochromic effect with moderate internal quantum efficiencies were synthesized for organic optical functional materials. These complexes could blue‐light‐emitting in solvents and green‐light‐emitting in green.