已经设计并合成了一种新型的深蓝色电致发光Pt(II)发射器。这类新型的深蓝色Pt(II)发射体采用四齿和大环螯合物生色团,将Pt(II)分子在基态和激发态下均以不变形的平坦几何形状约束。新的深蓝色发射器不会产生准分子发射,与相应的二齿Pt(II)发射器相比,掺杂10%的PMMA(聚甲基丙烯酸甲酯)薄膜的发射量子效率高达95%,并且具有出色的紫外线稳定性。大环四齿螯合物Pt(II)化合物是完全受空间约束的深蓝色Pt(II)发射体的第一个实例,与相应的非大环四齿Pt相比,它们不显示结构畸变并且具有更高的热稳定性和更高的发射量子效率。 (II)类似物。一项计算研究支持大环Pt(II)化合物在结构上比四齿Pt(II)分子更稳定。使用大环Pt(II)发射器成功制造了明亮高效的深蓝色电致磷光器件,其最大亮度为10 680 cd m-2,最大外部量子效率为15.4%(在490 cd m -2时),国际照明委员会(1931)的坐标(x
Compounds are provided that are photoluminescent and electroluminescent, and may emit intense blue or deep blue light. Also provided are methods of producing photoluminescence and electroluminescence, methods of applying the compounds in thin films, and uses of the compounds described herein in a light emitting device, a luminescent probe, a sensor, and/or an electroluminescent device.
[EN] IMIDAZO-TRIAZINE DERIVATIVES AS LIGANDS FOR GABA RECEPTORS<br/>[FR] DERIVES D'IMIDAZO-TRIAZINE COMME LIGANDS DE RECEPTEURS GABA
申请人:MERCK SHARP & DOHME
公开号:WO2002038568A1
公开(公告)日:2002-05-16
A class of 7-phenylimidazo [1,2-b][1,2,4]triazine derivatives, substituted at the meta position of the phenyl ring by an optionally substituted aryl or heteroaryl group which is directly attached or bridged by an oxygen atom or a -NH- linkage, being selective ligands for GABAA receptors, in particular having good affinity for the α2 and/or α3 and/or α5 subunit thereof, are accordingly of benefit in the treatment and/or prevention of adverse conditions of the central nervous system, including anxiety, convulsions and cognitive disorders.
Imidazo-triazine derivatives as ligands for gaba receptors
申请人:——
公开号:US20040023964A1
公开(公告)日:2004-02-05
A class of 7-phenylimidazo[1,2-b][1,2,4]triazine derivatives, substituted at the meta position of the phenyl ring by an optionally substituted aryl or heteroaryl group which is directly attached or bridged by an oxygen atom or a —NH— linkage, being selective ligands for GABA
A
receptors, in particular having good affinity for the &agr;2 and/or &agr;3 and/or &agr;5 subunit thereof, are accordingly of benefit in the treatment and/or prevention of adverse conditions of the central nervous system, including anxiety, convulsions and cognitive disorders.
Compounds are provided that are photoluminescent and electroluminescent, and may emit intense blue or deep blue light. Also provided are methods of producing photoluminescence and electroluminescence, methods of applying the compounds in thin films, and uses of the compounds described herein in a light emitting device, a luminescent probe, a sensor, and/or an electroluminescent device.