Synthesis and Crystal Structure of Blue Phosphorescent mer-Tris(2',6'-difluoro-2,3'-bipyridinato-N,C4') Iridium(III)
- 1. Kangwon National University, Chuncheon (Korea, Republic of)
- 2. Gyeongsang National University, Jinju (Korea, Republic of)
Description
A blue phosphorescent Ir(dfpypy)3 (dfpypy:fluorinated pyridine-pyridine ligand) complex with meridional configuration has been synthesized by newly developed effective method and its solid state structure and photoluminescence are characterized. For this complex, mer-Ir(dfpypy)3, the glass-transition and decomposition temperatures appear at 160 .deg. C and 384 .deg. C respectively in TGA and DSC experiments, which indicates that this complex has high thermal stability. In a crystalline structure, an average Ir-C bond length of mer- Ir(dfpypy)3 is slightly longer than that of fac-Ir(dfpypy)3, which assumed to be due to the weak trans-influence. The absorption and emission spectra are observed more red-shifted in mer-Ir(dfpypy)3 than fac-Ir(dfpypy)3. In addition, the former is readily oxidized than the latter in electrochemical behavior
Additional details
Publishing Information
- Journal Title
- Bulletin of the Korean Chemical Society
- Journal Volume
- 33
- Journal Issue
- 1
- Series
- 14 refs, 7 figs, 2 tabs
- Journal Page Range
- p. 183-188
- ISSN
- 0253-2964
INIS
- Country of Publication
- Korea, Republic of
- Country of Input or Organization
- Korea, Republic of
- INIS RN
- 45073812
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Descriptors DEI
- ABSORPTION; CRYSTAL STRUCTURE; DECOMPOSITION; EMISSION SPECTRA; IRIDIUM; PHOSPHORESCENCE; PHOTOLUMINESCENCE; SYNTHESIS
- Descriptors DEC
- CHEMICAL REACTIONS; ELEMENTS; EMISSION; LUMINESCENCE; METALS; PHOTON EMISSION; PLATINUM METALS; REFRACTORY METALS; SORPTION; SPECTRA; TRANSITION ELEMENTS