A novel phenanthro [2,3-b] furan 1, named (3-hydroxy-9-(4′-hydroxy-3′-methoxyphenyl)-11-methoxy-5,6,9,10-tetrahydrophenanthro [2,3-b] furan-10-yl) methyl acetate, and two known phenolic compounds were isolated from ...A novel phenanthro [2,3-b] furan 1, named (3-hydroxy-9-(4′-hydroxy-3′-methoxyphenyl)-11-methoxy-5,6,9,10-tetrahydrophenanthro [2,3-b] furan-10-yl) methyl acetate, and two known phenolic compounds were isolated from the tubers of Pleione bulbocodioides (Franch.) Rolfe. Their structures were elucidated by spectroscopic methods.展开更多
The title compound （CI9H24BrN302, 3） was synthesized from dehydroabietic acid and its crystal structure was determined by single-crystal X-ray diffraction. The compound is of monoclinic system, slSace group C2 with ...The title compound （CI9H24BrN302, 3） was synthesized from dehydroabietic acid and its crystal structure was determined by single-crystal X-ray diffraction. The compound is of monoclinic system, slSace group C2 with a = 24.830（5）, b = 7.1410（14）, c = 13.981（3） A, p = 107.68（3）°, Z = 4, V= 2361.9（8） A3, Mr = 482.42, Dc = 1.357 Mg/m3, S = 1.003,μ = 1.772 mm1, F（000） = 1008, the final R = 0.0660 and wR = 0.1402 for 2244 observed reflections （I 〉 2o（/））. The crystal structure is stabilized by four hydrogen bonds （O（W）-H（WA）...O（3）, O（W）-H（WB）...O（1）, N（2）-H（2A）...O（W） and N（3）-H（3A）...N（1）） formed among the title compound, the crystal water and acetone molecules. The preliminary antitumor assay showed the title compound exhibited considerable inhibitory activity against HepG2 and SMMC-7721 cell lines with the ICs0 values of 17.1 and 10.2 μM, respectively.展开更多
A new,convenient,efficient,and cost-effective one-pot synthesis of 1H-phenanthro[9,10]imidazol-2-yl from phenantherenquinone and aldehydes,using molecular iodine as catalyst is described.The present methodology offers...A new,convenient,efficient,and cost-effective one-pot synthesis of 1H-phenanthro[9,10]imidazol-2-yl from phenantherenquinone and aldehydes,using molecular iodine as catalyst is described.The present methodology offers several advantages such as excellent yields,simple procedure,shorter reaction times,and the use of inexpensive reagents.展开更多
Deep-blue emitter with high photoluminescence efficiency(PLQY)is highly desirable in ultra-high definition displays and white solid-state lightings.In this work,two deep-blue phenanthro[9,10]imidazole derivatives,PPIS...Deep-blue emitter with high photoluminescence efficiency(PLQY)is highly desirable in ultra-high definition displays and white solid-state lightings.In this work,two deep-blue phenanthro[9,10]imidazole derivatives,PPIS and PPPIS,with hot exciton property are successfully developed.Compared to PPIS,the embedded phenyl bridge in PPPIS is able to effectively increase the overlap of frontier molecular orbitals.In consequence,PPPIS shows higher oscillator strength and significantly enhanced PLQY.PPPIS also achieves better electroluminescence performance in non-doped device,showing deep-blue emission with Commission International de l’Eclairage(CIE)coordinates of(0.153,0.087)and the maximum external quantum efficiency(EQEmax)of 8.5%with minuscule efficiency roll-off.Meanwhile,when PPPIS serves as the host for phosphor PO-01,high-efficiency orange phosphorescent device is obtained with high EQEmax of 29.8%and negligible efficiency roll-off at 1000 cd/m^(2).Further,efficient single-emissive-layer white device is assembled via utilizing PPPIS as a blue emitter as well as the host for PO-01 simultaneously,providing warm-white emission with CIE coordinates of(0.429,0.433)at 1000 cd/m^(2),the forward-viewing EQEmaxof 27.2%and maximum power efficiency(PEmax)of 80.1 lm/W,respectively.Our studies can establish a viable design strategy for deep-blue emitters in high-performance non-doped blue OLEDs and hybrid WOLEDs.展开更多
合成了两个蓝光材料2-苯基-1H-[9,10-d]菲并咪唑(Phen-PI)和2-吡啶-1H-[9,10-d]菲并咪唑(PyriPI),光物理分析表明Phen-PI和Pyri-PI的最大发射峰分别位于371.5 nm,388.5 nm和403.5 nm,相对量子效率分别为0.383和0.528,激发态衰减寿命分别...合成了两个蓝光材料2-苯基-1H-[9,10-d]菲并咪唑(Phen-PI)和2-吡啶-1H-[9,10-d]菲并咪唑(PyriPI),光物理分析表明Phen-PI和Pyri-PI的最大发射峰分别位于371.5 nm,388.5 nm和403.5 nm,相对量子效率分别为0.383和0.528,激发态衰减寿命分别为3.87 ns和3.68 ns。通过密度泛函理论(DFT)对化合物的前线分子轨道成分和能级分布分析表明,当把Phen-PI中的苯基被吡啶环取代后,Pyri-PI的HOMO能级和LUMO能级分别下降0.09 e V和0.23 e V,同时Pyri-PI的HOMO轨道和LUMO轨道的能级差比Phen-PI减少0.14 e V,在理论层面上解释了Pyri-PI发射光谱的红移。展开更多
采用Suzuki聚合方法合成了以菲并咪唑为侧链的4种含硅宽禁带发光聚合物,并研究了这4种聚合物的光物理、电化学性质与电致发光性能.结果表明四苯基硅基团的引入能够得到宽的带隙,侧基上菲并咪唑的引入可以实现深蓝光发射.其中,基于聚合...采用Suzuki聚合方法合成了以菲并咪唑为侧链的4种含硅宽禁带发光聚合物,并研究了这4种聚合物的光物理、电化学性质与电致发光性能.结果表明四苯基硅基团的引入能够得到宽的带隙,侧基上菲并咪唑的引入可以实现深蓝光发射.其中,基于聚合物P1的电致发光器件最大外量子效率为0.65%,最大发光效率为0.33 cd A^(-1),色坐标为(0.163,0.099).展开更多
文摘A novel phenanthro [2,3-b] furan 1, named (3-hydroxy-9-(4′-hydroxy-3′-methoxyphenyl)-11-methoxy-5,6,9,10-tetrahydrophenanthro [2,3-b] furan-10-yl) methyl acetate, and two known phenolic compounds were isolated from the tubers of Pleione bulbocodioides (Franch.) Rolfe. Their structures were elucidated by spectroscopic methods.
基金Project supported by the National Natural Science Foundation of China(31000273)the Priority Academic Program Development of Jiangsu Higher Education Institutions(PAPD)
文摘The title compound （CI9H24BrN302, 3） was synthesized from dehydroabietic acid and its crystal structure was determined by single-crystal X-ray diffraction. The compound is of monoclinic system, slSace group C2 with a = 24.830（5）, b = 7.1410（14）, c = 13.981（3） A, p = 107.68（3）°, Z = 4, V= 2361.9（8） A3, Mr = 482.42, Dc = 1.357 Mg/m3, S = 1.003,μ = 1.772 mm1, F（000） = 1008, the final R = 0.0660 and wR = 0.1402 for 2244 observed reflections （I 〉 2o（/））. The crystal structure is stabilized by four hydrogen bonds （O（W）-H（WA）...O（3）, O（W）-H（WB）...O（1）, N（2）-H（2A）...O（W） and N（3）-H（3A）...N（1）） formed among the title compound, the crystal water and acetone molecules. The preliminary antitumor assay showed the title compound exhibited considerable inhibitory activity against HepG2 and SMMC-7721 cell lines with the ICs0 values of 17.1 and 10.2 μM, respectively.
文摘A new,convenient,efficient,and cost-effective one-pot synthesis of 1H-phenanthro[9,10]imidazol-2-yl from phenantherenquinone and aldehydes,using molecular iodine as catalyst is described.The present methodology offers several advantages such as excellent yields,simple procedure,shorter reaction times,and the use of inexpensive reagents.
基金financial support from National Natural Science Foundation of China(No.22075100)the Jilin Provincial Science and Technology Department(No.20220201082GX)+2 种基金the China Postdoctoral Science Foundation(Nos.2022TQ0111,2023M731267)Sichuan Science and Technology Program(No.2023NSFSC0985)Scientific Research Foundation of Chengdu University of Information Technology(No.KYTZ202174)and the Changsha Automobile Innovation Research Institute。
文摘Deep-blue emitter with high photoluminescence efficiency(PLQY)is highly desirable in ultra-high definition displays and white solid-state lightings.In this work,two deep-blue phenanthro[9,10]imidazole derivatives,PPIS and PPPIS,with hot exciton property are successfully developed.Compared to PPIS,the embedded phenyl bridge in PPPIS is able to effectively increase the overlap of frontier molecular orbitals.In consequence,PPPIS shows higher oscillator strength and significantly enhanced PLQY.PPPIS also achieves better electroluminescence performance in non-doped device,showing deep-blue emission with Commission International de l’Eclairage(CIE)coordinates of(0.153,0.087)and the maximum external quantum efficiency(EQEmax)of 8.5%with minuscule efficiency roll-off.Meanwhile,when PPPIS serves as the host for phosphor PO-01,high-efficiency orange phosphorescent device is obtained with high EQEmax of 29.8%and negligible efficiency roll-off at 1000 cd/m^(2).Further,efficient single-emissive-layer white device is assembled via utilizing PPPIS as a blue emitter as well as the host for PO-01 simultaneously,providing warm-white emission with CIE coordinates of(0.429,0.433)at 1000 cd/m^(2),the forward-viewing EQEmaxof 27.2%and maximum power efficiency(PEmax)of 80.1 lm/W,respectively.Our studies can establish a viable design strategy for deep-blue emitters in high-performance non-doped blue OLEDs and hybrid WOLEDs.
文摘合成了两个蓝光材料2-苯基-1H-[9,10-d]菲并咪唑(Phen-PI)和2-吡啶-1H-[9,10-d]菲并咪唑(PyriPI),光物理分析表明Phen-PI和Pyri-PI的最大发射峰分别位于371.5 nm,388.5 nm和403.5 nm,相对量子效率分别为0.383和0.528,激发态衰减寿命分别为3.87 ns和3.68 ns。通过密度泛函理论(DFT)对化合物的前线分子轨道成分和能级分布分析表明,当把Phen-PI中的苯基被吡啶环取代后,Pyri-PI的HOMO能级和LUMO能级分别下降0.09 e V和0.23 e V,同时Pyri-PI的HOMO轨道和LUMO轨道的能级差比Phen-PI减少0.14 e V,在理论层面上解释了Pyri-PI发射光谱的红移。
文摘采用Suzuki聚合方法合成了以菲并咪唑为侧链的4种含硅宽禁带发光聚合物,并研究了这4种聚合物的光物理、电化学性质与电致发光性能.结果表明四苯基硅基团的引入能够得到宽的带隙,侧基上菲并咪唑的引入可以实现深蓝光发射.其中,基于聚合物P1的电致发光器件最大外量子效率为0.65%,最大发光效率为0.33 cd A^(-1),色坐标为(0.163,0.099).
