|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Analysis of ionospheric anomaly preceding the Mw7.3 Yutian earthquake显示文摘On February 12,2014,a large Mw7. 3 earthquake occurred in Yutian of Xijiang Province,China.We processed the global ionosphere maps provided by CODE( the Center for Orbit Determination in Europe)and the foF2( the critical frequency of F2-layer) data of Chongqing ionosonde station to analyze the preearthquake ionospheric anomalies. Solar activities and magnetic storm were checked by the sliding inter quartile range method to remove their effects on the ionosphere. A positive ionospheric anomaly with the large amplitude of 20 TECU was observed near the epicenter on February 3( 10th day before the earthquake). In addition,the foF2 at Chongqing station had an unusual increase of more than 40% on the day,which was consistent with the TEC( Total Electron Content) anomaly. The global disturbance represents that the peak of TEC anomaly didn't coincide with the vertical projection of epicenter. The TEC anomalous area was closer to the equator,and it mainly occurred from local time 16 ∶ 00 to 20 ∶ 00. An enhancement of TEC with the small amplitude also appeared in the magnetically conjugated region. | Li Wang Guo Jinyun Yu Xuemin Yu Hongjuan | 2014 | Geodesy and Geodynamics2014，5，2： | 15 |
| 2 | MCP-1-induced ERK/GSK-3β/Snail signaling facilitates the epithelial-mesenchymal transition and promotes the migration of MCF-7 human breast carcinoma cells显示文摘Monocyte chemoattractant protein-1(MCP-1)is a chemotactic cytokine that can bind to its receptor cysteine-cysteine chemokine receptor 2(CCR2)and plays an important role in breast cancer cell metastasis.However,the molecular mechanisms underlying MCP-1-induced alterations in cellular functions during tumor progression are poorly understood.Here,we showed that MCP-1 stimulated the epithelial-mesenchymal transition(EMT)and induced the tumorigenesis of breast cancer cells by downregulating E-cadherin,upregulating vimentin and fibronectin,activating matrix metallopeptidase-2(MMP-2),and promoting migration and invasion.Moreover,MCP-1 treatment reduced glycogen synthase kinase-3β(GSK-3β)activity via the MEK/ERK-mediated phosphorylation of serine-9 in MCF-7 cells.The inhibition of MEK/ERK by U0126 attenuated the MCP-1-induced phosphorylation of GSK-3βand decreased the expression of Snail,an EMT-related transcription factor,leading to the inhibition of MCF-7 cell migration and invasion.Inactivation of GSK-3βby LiCl(lithium chloride)treatment notably increased MMP-2 activity,vascular endothelial growth factor expression and EMT of MCF-7 cells.These findings revealed that MCP-1-induced EMT and migration are mediated by the ERK/GSK-3β/Snail pathway,and identified a potential novel target for therapeutic intervention in breast cancer. | Shun Li Juan Lu Yu Chen Niya Xiong Li Li Jing Zhang Hong Yang Chunhui Wu Hongjuan Zeng Yiyao Liu | 2017 | Cellular & Molecular Immunology2017，14，7： | 14 |
| 3 | Measuring the Internal Velocity of Debris Flows Using Impact Pressure Detecting in the Flume Experiment显示文摘Measuring the internal velocity of debris flows is very important for debris flow dynamics research and designing debris flow control works. However, there is no appropriate method for measuring the internal velocity because of the destructive power of debris flow process. In this paper, we address this problem by using the relationship between velocity and kinetic pressure, as described by surface velocity and surface kinetic pressure data. Kinetic pressure is the difference of impact pressure and static pressure. The former is detected by force sensors installed in the flow direction at the sampling section. Observations show that static pressure can be computed using the formula for static water pressure by simply substituting water density for debris flow density. We describe the relationship between surface velocity and surface kinetic pressure using data from seven laboratory flume experiments. It is consistent with the relationship for single phase flow, which is the measurement principle of the Pitot tube. | YANG Hongjuan WEI Fangqiang HU Kaiheng Sergey CHERNOMORETS HONG Yong LI Xiaoyu XIE Tao | 2011 | Journal of Mountain Science2011，8，2： | 12 |
| 4 | Nidus vespae protein inhibiting proliferation of HepG2 hepatoma cells through extracellular signal-regulated kinase signaling pathways and inducing G1 cell cycle arrest显示文摘蛋白质说出 NVP (1 ) 从巢 vespae 被孤立。T 他现在的学习的目的是阐明 NVP (1 ) 是否并且怎么调制 HepG2 房间的增长。在 6.6 μg/ml 的集中的 NVP (1 ) 能在阶段 G 1 逮捕房间周期并且禁止 cyclinB, cyclinD1 和 cyclinE 的 mRNA 表示。NVP (1 ) 压制了 cdk2 蛋白质表示,但是增加了 p27 和 p21 蛋白质表示。然而, NVP (1 ) 没改变 p16 蛋白质表示层次。NVP (1 ) 在由原子染色质冷凝作用显示了的 HepG2 房间支持了 apoptosis,并且另外,表明小径的细胞外的调整信号的 kinase (英皇家空军之阶级最低之兵) 被激活。而且,当 HepG2 房间是有英皇家空军之阶级最低之兵禁止者 PD98059 的 pretreated 时,津贴蛋白质表示水平被稀释。这些结果证明 NVP (1 ) 通过表明小径的英皇家空军之阶级最低之兵禁止 HepG2 的增长。NVP (1 ) 能是为肝癌症的潜在的药。 | Changdong Wang Peng Chen Hongjuan Jin Xu Yan Lu Gan Yi Li Shiyi Zhou Junli Chang Yuesheng Wang Guangxiao Yang Guangyuan He | 2008 | Acta Biochimica et Biophysica Sinica2008，40，11： | 11 |
| 5 | Effect of Lichong Decoction on expression of IGF-I and proliferating cell nuclear antigen mRNA in rat model of uterine leiomyoma显示文摘OBJECTIVE:To study the effect of Lichong Decoction(Lichong Decoction for strengthening anti-pathogenic Qi and eliminating blood stasis) on the expression of insulin-like growth factor-I(IGF-I) and proliferating cell nuclear antigen(PCNA) mRNA in a rat model of uterine leiomyoma.METHODS:Fifty female Wistar rats were randomized into a normal control group,model group,Lichong Decoction group,Guizhifuling Capsule(Capsule containing Cassia Twig and Poria) group,and Mifepristone group.The uterine leiomyoma model was established by peritoneal injections of exogenous estrogen and progesterone hormone.The ultrastructural changes in cells of rat uterine tissues were observed with transmission electron microscopy,and the expression of IGF-I and PCNA mRNA was detected by real-time fluorescent quantitative PCR.RESULTS:Following treatment,cells in the Lichong Decoction group appeared to be arranged normally,the cellular morphology were almost in a normal state,hyperplasia and hypertrophy of the chondriosome was reduced,collagen fibers were arranged in a regular manner,without obvious hyperplasia,and the expression of IGF-I and PCNA mRNA was significantly decreased compared with the model group(P<0.01).CONCLUSIONS:The effect of Lichong Decoction on uterine leiomyoma is related to its function in reducing the expression of IGF-I and PCNA mRNA. | Donghua Li Yalan Zhang Hongjuan Han Jianguo Geng Xiaolei Xie Jiubo Zheng Yasong Wang Xiaoli Zou | 2012 | Journal of Traditional Chinese Medicine2012，32，4： | 11 |
| 6 | Effect of Electrical Current on the Tribological Behavior of the Cu-WS_2-G Composites in Air and Vacuum显示文摘As the traditional graphite-based composites cannot meet the requirement of rapid developing modern industry, novel sliding electrical contact materials with high self-lubricating performance in multiple environments are eagerly required. Herein a copper-based composite with WS2 and graphite as solid lubricant are fabricated by powder metallurgy hot-pressed method. The friction and wear behaviors of the composites with and without current are investigated under the condition with sliding velocity of 10 m/s and normal load of 2.5N/cm 2 in both air and vacuum. Morphologies of the worn surfaces are observed by optical microscope and compositions of the lubricating films are analyzed by XPS. Surface profile curves and roughness of the worn surfaces are obtained by 2205 surface profiler. The results of wear tests show that the friction coefficient and wear volume loss of the composites with current are greater than that without current in both air and vacuum due to the adverse effects of electrical current which damaged the lubricating film partially and roughed the worn surfaces. XPS results demonstrate that the lubricating film formed in air is composed of oxides of Cu, WS2 , elemental S and graphite, while the lubricating film formed in vacuum is composed of Cu, WS2 and graphite. Because of the synergetic lubricating action of oxides of Cu, WS2 and graphite, the composites show low friction coefficient and wear volume loss in air condition. Owing to the fact that graphite loses its lubricity which makes WS2 become the only lubricant, severe adhesive and abrasive wear occur and result in a high value of wear rate in vacuum condition. The formation of the lubricating film on the contact interface between the brush and ring is one of the factors which can greatly affect the wear performance of the brushes. The low contact voltage drop of the composites in vacuum condition is attributed to the high content of Cu in the surface film. This study fabricated a kind of new sliding electrical contact self-lubricating composite with dual-lubricant which can work well in both air and vacuum environments and provides a comprehensive analysis on the lubrication mechanisms of the composite. | QIAN Gang FENG Yi LI Bin HUANG Shiyin LIU Hongjuan DING Kewang | 2013 | Chinese Journal of Mechanical Engineering2013，26，2： | 8 |
| 7 | Preparation of phosphorus-modified PITQ-13 catalysts and their performance in 1-butene catalytic cracking显示文摘A series of phosphorus-modified PITQ-13 catalysts was prepared by wet impregnation of NH4H2PO4solution into an HITQ-13 parent. The catalysts were characterized using XRD, N2adsorption, MAS NMR and NH3-TPD. Their catalytic performance in 1-butene catalytic cracking was evaluated in a fixed fluidized bed reactor. The results showed that the crystallinity, surface area and pore volume of P-modified PITQ-13catalysts decreased with the increasing amounts of P. The number of weak acid sites increased, whereas that of strong acidity decreased. The selectivity to propylene in 1-butene cracking reactions increased because of the decrease in strong acidity. The yield of propylene achieved41.6% over PITQ-13-2 catalyst with a P content of 1.0 wt%, which was 5.1% greater than that achieved over HITQ-13 catalyst. | Penghui Zeng Yun Liang Shengfu Ji Baojian Shen Honghai Liu Baojie Wang Hongjuan Zhao Mingfu Li | 2014 | Journal of Energy Chemistry2014，23，2： | 6 |
| 8 | Isolation of Growth Hormone-Releasing Hormone and Its Receptor Genes from Scatophagus argus and Their Expression Analyses显示文摘The teleost Scatophagus argus is a species whose females grows faster than males.Growth hormone(gh)mRNA abundance in females pituitary is higher than that in males;however the mechanism underlining such differential is still unknown.Growth hormone(GH)is tightly associated with GH-releasing hormone(Ghrh)in vertebrates.In this study,Ghrh gene(ghrh)and its receptor gene,ghrhr,were isolated from S.argus.Tissue expression analysis showed that ghrh and ghrhr were mainly expressed in hypothalamus while ghrhr was expressed in pituitary and gh was predominantly expressed in pituitary.Twenty cultured S.argus individuals were used to compare ghrh,ghrhr and gh mRNA abundances,120 g and 181 g average weight for male(n=11)and female(n=9),respectively.Real-time PCR indicated that the ghrh and ghrhr mRNA abundances in male hypothalamus were significantly higher than those in female hypothalamus while that of gh mRNA abundance was significantly higher in female pituitary than in male pituitary.The ghrh and ghrhr mRNA abundances were significantly up-regulated in female hypothalamus 3 h after injection of 0.1 mg kg^-1 body weight Ghrh while pituitary ghrhr and gh mRNA abundances were not affected.In female hypothalamus,ghrh and ghrhr m RNA abundances were not affected at 6 h post-injection of 4 mg kg^-1 body weight 17α-methyltes-tosterone(17α-MT)or 17β-Estradiol(E2).In female pituitary,ghrhr m RNA abundance was down-regulated by 17α-MT while that of gh m RNA abundance was up-regulated by E2.Our findings indicated that E2,rather than Ghrh,plays an important role in up-regulating the expression of gh in female S.argus,which should aid to understand the sexual dimorphism of teleost growth. | JIANG Dongneng SHI Hongjuan LIU Qianqing WANG Tuo HUANG Yuanqing HUANG Yang DENG Siping CHEN Huapu TIAN Changxu ZHU Chunhua LI Guangli | 2019 | Journal of Ocean University of China2019，18，6： | 6 |
| 9 | Preparation and characterization of AlN seeds for homogeneous growth显示文摘Large size AlN bulk crystal has been grown on SiC heterogeneous seed by physical vapor transport (PVT). The properties of AlN wafer were characterized by high resolution X-ray diffraction (HRXRD), Raman spectroscopy, etched method and atomic force microscope (AFM). Growth mechanism of AlN crystal grown on heterogeneous SiC seeds was proposed. Crystallization quality of AlN samples were improved with the growth process, which is associated with the growth mechanism. AlN single wafer has excellent crystallization quality, which is indicated by HRXRD showing the (0002),(1012) XRD FWHM of 76.3,52.5 arcsec, respectively. The surface of the AlN wafer is measured by AFM with a roughnessof 0.15 nm, which is a promising seed for AlN homogeneous growth. | Li Zhang Haitao Qi Hongjuan Cheng Lei Jin Yuezeng Shi | 2019 | Journal of Semiconductors2019，40，10： | 5 |
| 10 | Effects of trigonelline inhibition of the Nrf2 transcription factor M vitro on Echmococcus granulosus显示文摘 | Wenjuan Qin Dongfang Guan Rongji Ma Rentan Yang Guoqiang Xing Hongjuan Shi Guangyao Tang Jiajie Li Hailong Lv Yufeng Jiang | 2017 | Acta Biochimica et Biophysica Sinica2017，49，8： | 4 |
| 11 | Radiation induced graft polymerization of multi-walled carbon nanotubes for superhydrophobic composite membrane preparation显示文摘Highly soluble multi-walled carbon nanotubes(MWNTs) were prepared by radiation-induced free radical graft polymerization of vinyl acetate(VAc) onto pristine MWNT surfaces. High resolution transmission electron microscopy(HR-TEM), Fourier transform infrared(FTIR) spectroscopy, and micro-Raman spectroscopy were used to confirm that poly(vinyl acetate)(PVAc) had been successfully grafted onto the surface of the MWNTs. The effects of experimental parameters on the degree of grafting(DG) of PVAc were also investigated, including adsorbed dose, dose rate, initial monomer concentration, and solvents. The grafted MWNTs(MWNTs-g-PVAc) exhibited good solubility in common organic solvents at high mass fraction. In addition, a superhydrophobic composite membrane could be readily fabricated by vacuum filtration of MWNTs-g-PVAc onto a supporting membrane, as was confirmed by water contact angle testing and visualization by scanning electron microscopy. | Bowu Zhang Siyuan Xie Rongmao Wei Hongjuan Ma Ming Yu Linfan Li Jingye Li | 2016 | Science China Chemistry2016，59，3： | 4 |
| 12 | Novel high PSRR high-order temperature-compensated subthreshold MOS bandgap reference显示文摘Novel high power supply rejection ratio(PSRR) high-order temperature-compensated subthreshold metal-oxidesemiconductor(MOS) bandgap reference(BGR) is proposed in Semiconductor Manufacturing International Corporation(SMIC) 0.13 μm complementary MOS(CMOS) process.By adopting subthreshold MOS field-effect transistors(MOSFETs) and the piecewise-curvature temperature-compensated technique,the output reference voltage's temperature performance of the subthreshold MOS BGR is effectively improved.The subthreshold MOS BGR achieves high PSRR performance by adopting the technique of pre-regulator.Simulation results show that the temperature coefficient(TC) of the subthreshold MOS BGR is 1.38×10^(-6)/°C when temperature is changed from-40 °C to 125 °C with a power supply voltage of 1.2 V.The subthreshold MOS BGR achieves the PSRR of-104.54 dB,-104.54 dB,-104.5 dB,-101.82 dB and-79.92 dB at 10 Hz,100 Hz,1 kH z,10 kH z and 100 kH z respectively. | Zhou Qianneng Zhu Ling Li Hongjuan Lin Jinzhao Wang Liangcai Luo Wei | 2017 | The Journal of China Universities of Posts and Telecommunications2017，24，6： | 3 |
| 13 | Comprehensive test stand for high-intensity cyclotron development显示文摘A comprehensive test stand for high-intensity cyclotron development,a 10 MeV 430 μA cyclotron,has been successfully constructed at China Institute of Atomic Energy (CIAE) for the experimental verification of the viability of a 100 MeV high-intensity cyclotron (CYCIAE-100) being constructed at CIAE.The verification includes the overall design technology,detail design and engineering technology for the crucial parts of the machine,e.g.main magnet and beam diagnostics.It will also pave the way for future enhancement of the beam intensity.The test stand consists of a H-ion source,axial injection system,central region,main magnet and coil,RF resonator,stripping extraction,and auxiliary systems,which include the RF power amplifier,high voltage and DC power supplies,electric apparatus,beam diagnostics,control,vacuum,water cooling,pneumatic system,and safety interlock.This paper presents the work regarding the design and sub-system development of the test sand,and the results of the beam commissioning of the machine. | ZHANG TianJue LI ZhenGuo CHU ChengJie XING JianSheng GUAN FengPing ZHONG JunQing JI Bin GE Tao YIN ZhiGuo HOU ShiGang PAN GaoFeng YAO HongJuan LU YinLong WANG ZhenHui WU LongCheng LIN Jun JIA XianLu WEI SuMin WEN LiPeng WANG Feng XIA Le CAI HongRu XIE HuaiDong CHEN RongFan ZHANG Yan ZHANG SuPing LIU GengShou ZOU Jian AN ShiZhong YANG JianJun BI YuanJie YANG Fang | 2011 | Chinese Science Bulletin2011，56，3： | 3 |
| 14 | High-PSRR High-Order Curvature-Compensated CMOS Bandgap Voltage Reference显示文摘A high-PSRR high-order curvature-compensated CMOS bandgap voltage reference( BGR),which has the performances of high power supply rejection ratio( PSRR) and low temperature coefficient,is designed in SMIC 0. 18 μm CMOS process. Compared to the conventional curvature-compensated BGR which adopted a piecewise-linear current,the temperature characterize of the proposed BGR is effectively improved by adopting two kinds of current including a piecewise-linear current and a current proportional 1. 5 party to the absolute temperature T. By adopting a low dropout( LDO) regulator whose output voltage is the operating supply voltage of the proposed BGR core circuit instead of power supply voltage VDD,the proposed BGR with LDO regulator achieves a well PSRR performance than the BGR without LDO regulator. Simulation results show that the proposed BGR with LDO regulator achieves a temperature coefficient of 2. 1 × 10-6/ ℃ with a 1. 8 V power supply voltage and a line regulation of 4. 9 μV / V at 27 ℃. The proposed BGR with LDO regulator at 10 Hz,100 Hz,1 k Hz,10 k Hz and 100 k Hz have the PSRR of- 106. 388,- 106. 388,- 106. 38,- 105. 93 and-88. 67 d B respectively. | Qianneng Zhou Yunsong Li Jinzhao Lin Hongjuan Li Yu Pang Wei Luo | 2015 | Journal of Harbin Institute of Technology(New Series)2015，22，5： | 2 |
| 15 | A Selective Fluorescent Sensor for Fast Detection of Hydrogen Sulfide in Red Wine显示文摘基于在 azido 组和氢硫化物之间的反应(H 2 S ) , BTN,在离开上荧光灯传感器被综合,它在 H 2 S,并且 5. | Qiwen Chen Panfei Xing Yongqian Xu Hongjuan Li Shiguo Sun | 2017 | Chinese Journal of Chemistry2017，35，4： | 2 |
| 16 | Host cell Rac1 GTPase facilitates Toxoplasma gondii invasion显示文摘Dear Editor,Toxoplasma gondii is broadly distributed worldwide,and infects nearly all warm-blooded animals(Montoya and Liesenfeld,2004).Its primary infections in pregnant women may lead to abortion,stillbirth and other conditions,and it also attributes largely to encephalitis,retinochoroiditis and other serious diseases in immunocompromised individuals(Moncada and Montoya,2012).Rac1 is a small GTPase in the Rho family that plays an important role in cytoskeleton reorganization(Hall,1998).Rac1 GTPase is reported to be activated by infection of Chlamydia pneumoniae(Zhang et al.,2014). | Haixia Wei Lijuan Zhou Shuizhen Wu Dongliang Li Shengqun Deng Hongjuan Peng | 2020 | Science China(Life Sciences)2020，63，4： | 2 |
| 17 | Arabidopsis Synaptotagmin 2 Participates in Pollen Germination and Tube Growth and Is Delivered to Plasma Membrane via Conventional Secretion显示文摘Arabidopsis synaptotagmin (SYT2 ) 2 被报导了在体的房间参予一条异乎寻常的能分泌的小径。我们的结果证明 SYT2 主要在 Arabidopsis thaliana 的花粉被表示。展出的 syt2 T-DNA 和 RNA 干扰异种线的花粉减少了全部的萌芽并且阻碍了花粉试管生长。在 SYT2 对不同、补缀的分隔空间局部性,但是能与 Golgi 标记, BODIPY TR C5 ceramide 和 GmMan1-mCherry 共同本地化的花粉 tubeindicates 的 SYT2-GFP 熔化蛋白质的表示的分析。然而,对在 Arabidopsis 暂停房间的血浆膜局部性的 SYT2-DsRed-E5was,除了 Golgi 仪器。在血浆膜的 SYT2 的本地化被在花粉试管染色的 immunofluorescence 进一步支持。而且, brefeldin Atreatment 禁止了 SYT2 的运输到血浆膜并且引起了 SYT2 聚集并且形成扩大分隔空间。SYT2-C2AB 领域的截断也在 Golgi 仪器导致了 SYT2 的保留。phospholipid 有约束力的试金显示出的 invitro SYT2-C2AB 领域以一种钙依赖者方式绑在 phospholipid 膜。一起拿,我们的结果显示了那 SYT2 为花粉萌芽和花粉试管生长被要求,并且涉及常规 exocytosis。 | Hui Wang Shengcheng Han Wei Siao Chunqing Song Yun Xiang Xiaorong Wu Pengyu Cheng Hongjuan Li JAn Jasik Karol Micieta JAn Turna Boris Voigtt Frantisek Baluska Jin Liu Yingdian Wang Heping Zhao | 2015 | Molecular Plant2015，8，12： | 2 |
| 18 | A generalized framework for AMOVA with multiple hierarchies and ploidies显示文摘The analysis of molecular variance(AMOVA)is a widely used statistical method in population genetics and molec-ular ecology.The classic framework of AMOVA only supports haploid and diploid data,in which the number of hierarchies ranges from two to four.In practice,natural populations can be classified into more hierarchies,and polyploidy is frequently observed in extant species.The ploidy level may even vary within the same species,and/or within the same individual.We generalized the framework of AMOVA such that it can be used for any number of hierarchies and any level of ploidy.Based on this framework,we present four methods to account for data that are multilocus genotypic and allelic phenotypic(with unknown allele dosage).We use simulated datasets and an empirical dataset to evaluate the performance of our framework.We make freely available our methods in a new software package,polygene,which is freely available at https://github.com/huangkang1987/polygene. | Kang HUANG Tiantian WANG Derek W.DUNN Pei ZHANG Hongjuan SUN Baoguo LI | 2021 | Integrative Zoology2021，16，1： | 2 |
| 19 | ESTIMATION OF ACTIVATED ENERGY OF DESORPTION OF n-HEXANE ON ACTIVATED CARBONS BY TPD TECHNIQUE显示文摘In this paper, six kinds of activated carbons such as Ag+-activated carbon, Cu2+- activated carbon, Fe3+- activated carbon, activated carbon, Ba2+- activated carbon and Ca2+- activated carbon were prepared. The model for estimating activated energy of desorption was established. Temperature-programmed desorption (TPD) experiments were conducted to measure the TPD curves of n-hexanol and then estimate the activation energy for desorption of n-hexanol on the activated carbons. Results showed that the activation energy for the desorption of n-hexanol on the Ag+- activated carbon, the Cu2+- activated carbon and the Fe3+- activated carbon were higher than those of n-hexanol on the activated carbon, the Ca2+- activated carbon and the Ba2+- activated carbon. | LI Zhong WANG Hongjuan XI Hongxia XU Kefeng WEN Jun Research Institute of Chemical Engineering, South China University of Technology, Guangzhou, 510640 | 2001 | Chinese Journal of Reactive Polymers2001，10，2： | 2 |
| 20 | Two novel terpyridine-based chromophores with donor-acceptor structural model containing modified triphenylamine moiety: Synthesis, crystal structures and two-photon absorption properties显示文摘Two novel terpyridine-based chromophores with D-A (D = donor, A = acceptor) structural model containing modified triphenylamine moiety (L1 and L2 ) have been conveniently synthesized via formylation and reduction in satisfactory yields, and fully characterized. The single crystals of them were obtained and determined by X-ray diffraction analysis. The relationships between structure and photophysical properties of the two chromophores were investigated both experimentally and theoretically. The measured maximum TPA cross-sections per molecular weight (δmax /MW) of the chromophores are 0.63 GM/(g mol) (L1) and 0.72 GM/(g mol) (L2), respectively, in DMF as a high polar solvent. The results indicate that the value of δmax/MW could be well tuned by the intramolecular charge transfer (ICT), which could be realized by introducing additional elecron-donor/acceptor groups. | LIU Jie ZHANG Qiong DING HongJuan ZHANG Jun TAN JingYun WANG ChuanKui WU JieYing LI ShengLi ZHOU HongPing YANG JiaXiang TIAN YuPeng | 2013 | Science China Chemistry2013，56，9： | 2 |
您所在的机构暂未开通此部分的功能，请联系管理员