Blue Light-Emitting Cyclometalated Spirofluorenexanthene Imidazolylidene Platinum(II) Complexes

被引：3
|
作者：
Riesebeck, Tim [1 ]
Strassner, Thomas [1 ]
机构：
[1] Tech Univ Dresden, Phys Organ Chem, D-01069 Dresden, Germany
来源：
ORGANOMETALLICS | 2023年 / 42卷 / 22期
关键词：
EFFECTIVE CORE POTENTIALS; MOLECULAR-ORBITAL METHODS; HIGHLY EFFICIENT; IRIDIUM COMPLEXES; SPIRO LIGAND; BASIS-SET; PHOSPHORESCENT; EMITTERS; EMISSION; DEVICES;
D O I：
10.1021/acs.organomet.3c00385
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Cyclometalated 2 '-spirofluorenexanthene imidazolylidene (SFX-NHC) Pt(II) complexes with acetylacetonate, 1,3-bis(2,4,6-trimethylphenyl)propane-1,3-dionate, and dihydrobis(3,5-dimethylpyrazole-1-yl)borate auxiliary ligands were synthesized from readily available 2 '-bromospiro[fluorene-9,9 '-xanthene] (2 '-Br-SFX) and characterized and investigated in terms of their photophysical properties. Photophysical properties were studied in 2 wt % PMMA films at room temperature and 2-MeTHF at 77 K. The radiative decay times vary between 4 and 48 mu s. The emission peak maxima are at 420, 430, and 480 nm with photoluminescence quantum yields up to 76% and blue Commission Internationale de l'& Eacute;clairage (CIE)(xy) coordinates of (0.15, 0.12).
引用
收藏
页码：3275 / 3282
页数：8
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