环金属化(C ^ C *)铂(II)N-杂环卡宾(NHC)络合物作为一类新的磷光发射体而出现,用于有机发光器件(OLED)。我们提出了该类别的六个新复合物的合成,以研究扩展π系统的影响。因此,将具有不同数目的额外苯基取代基的六个不同的NHC配体与单阴离子乙酰丙酮酸酯(acac)配体结合使用,以获得通式[(NHC)Pt(II)(acac)]的配合物。通过标准技术和先进的光谱学方法对复合物进行了全面表征(195Pt NMR)。对于所有配合物,固态结构测定均显示出铂原子的方形-平面配位。在室温下在非晶态聚(甲基丙烯酸甲酯)薄膜中测量吸收光谱和发射光谱。四种化合物在可见光谱的蓝绿色区域发射,量子产率高达81%。
环金属化(C ^ C *)铂(II)N-杂环卡宾(NHC)络合物作为一类新的磷光发射体而出现,用于有机发光器件(OLED)。我们提出了该类别的六个新复合物的合成,以研究扩展π系统的影响。因此,将具有不同数目的额外苯基取代基的六个不同的NHC配体与单阴离子乙酰丙酮酸酯(acac)配体结合使用,以获得通式[(NHC)Pt(II)(acac)]的配合物。通过标准技术和先进的光谱学方法对复合物进行了全面表征(195Pt NMR)。对于所有配合物,固态结构测定均显示出铂原子的方形-平面配位。在室温下在非晶态聚(甲基丙烯酸甲酯)薄膜中测量吸收光谱和发射光谱。四种化合物在可见光谱的蓝绿色区域发射,量子产率高达81%。
[EN] ELECTROLUMINESCENT IMIDAZO-QUINOXALINE CARBENE METAL COMPLEXES<br/>[FR] COMPLEXES DE CARBÈNE-MÉTAL À LIGAND IMIDAZOQUINOXALINE ÉLECTROLUMINESCENTS
申请人:BASF SE
公开号:WO2016020516A1
公开(公告)日:2016-02-11
Metal carbene complexes comprising at least one imidazo-quinoxaline ligand, organic electronic devices, especially OLEDs (Organic Light- Emitting Diodes) which comprise such complexes, a light-emitting layer comprising at least one inventive metal carbene complex, an apparatus selected from the group consisting of illuminating elements, stationary visual display units and mobile visual display units comprising such an OLED, the use of such a metal carbene complex for electrophotographic photoreceptors, photoelectric converters, organic solar cells (organic photovoltaics), switching elements, organic light emitting field effect transistors (OLEFETs), image sensors, dye lasers and electroluminescent devices and a process for preparing such metal carbene complexes.
Transition metal complexes comprising carbene ligands serving as emitters for organic light-emitting diodes (OLED's)
申请人:UDC Ireland Limited
公开号:US10573828B2
公开(公告)日:2020-02-25
Use of transition metal complexes of the formula (I) in organic light-emitting diodes
where:
M1 is a metal atom;
carbene is a carbene ligand;
L is a monoanionic or dianionic ligand;
K is an uncharged monodentate or bidentate ligand selected from the group consisting of phosphines; CO; pyridines; nitriles and conjugated dienes which form a π complex with M1;
n is the number of carbene ligands and is at least 1;
m is the number of ligands L, where m can be 0 or ≥1;
o is the number of ligands K, where o can be 0 or ≥1;
where the sum n+m+o is dependent on the oxidation state and coordination number of the metal atom and on the denticity of the ligands carbene, L and K and also on the charge on the ligands carbene and L, with the proviso that n is at least 1, and also
an OLED comprising these transition metal complexes, a light-emitting layer comprising these transition metal complexes, OLEDs comprising this light-emitting layer, devices comprising an OLED according to the present invention, and specific transition metal complexes comprising at least two carbene ligands.
OLED COMPRISING AN ELECTROLUMINESCENT IMIDAZO-QUINOXALINE CARBENE METAL COMPLEXES
申请人:UDC Ireland Limited
公开号:EP3466957A1
公开(公告)日:2019-04-10
Organic electronic devices, especially OLEDs (Organic Light-Emitting Diodes) which comprise metal carbene complexes comprising at least one imidazo-quinoxaline ligand. An apparatus selected from the group consisting of illuminating elements, stationary visual display units and mobile visual display units comprising such an OLED and the use of such a metal carbene complex for electroluminescent devices are disclosed.
preferably
wherein
Z is NRx, O or S, preferably NRx or O, more preferably NRx,
Rx is
ÜBERGANGSMETALLKOMPLEXE MIT CARBENLIGANDEN ALS EMITTER FÜR ORGANISCHE LICHTEMITTIERENDE DIODEN (OLEDS)
申请人:UDC Ireland Limited
公开号:EP3805338A1
公开(公告)日:2021-04-14
Die vorliegende Erfindung betrifft einen neutralen Übergangsmetall-Komplex umfassend mindestens einen Carbenliganden, sowie dessen Verwendung in organischen Licht-emittierenden Dioden und deren Licht-emittierende Schicht, und die entsprechenden Vorrichtungen.