2011-11-28
通过α-CH3吡喃盐和二芳醛反应设计合成一系列具有独特结构的双吡喃盐化合物,并且首次对它们的光物理性质进行了研究。研究表明,由于共轭骨架结构的不同这几种双吡喃盐在CH2Cl2中的荧光可以实现从绿到红的调节,并且DFT计算结果也与实验结果非常的吻合;此外,也对它们的固态发光进行了初步的研究。
Specialized Research Fund for the Doctoral Program of Higher Education (20100041120020)
大连理工大学化工学院,精细化工国家重点实验室,,,,
#化学#
PANG Xiaojuan,CUI Xueyan,HU Deping,JIANG Chenwei,LAN Zhenggang
the averaged lifetime of the M structure was close to 600 fs, our calculated fluorescence emission
2016-06-03
Doctoral Fund of Ministry of Education of China (Grant20120201120056)
Natural Science Foundation of China(21203144)
Key Laboratory for Quantum Information and Quantum Optoelectronic Devices, Shaanxi, and Department of Applied Physics, Xi’an Jiaotong University, Xi’an 710049, China,Key Laboratory for Quantum Information and Quantum Optoelectronic Devices, Shaanxi, and Department of Applied Physics, Xi’an Jiaotong University, Xi’an 710049, China,Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, 189 Songling Road, Qingdao, 266101 Shandong, China,Key Laboratory for Quantum Information and Quantum Optoelectronic Devices, Shaanxi, and Department of Applied Physics, Xi’an Jiaotong University, Xi’an 710049, China,Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, 189 Songling Road, Qingdao, 266101 Shandong, China
#Physics#
He Huaizhen,Lei Lei, Li Jianli,Cheng Zhao,Shi Zhen
fluorescence emission wavelength maxima of Fluo-3ClMM-OH were also researched.
2008-12-30
Department of Chemistry, Northwest University,Key Laboratory of Synthetic and Natural Functional Molecule Chemistry, Ministry of Education, Department of Chemistry, Northwest University,Key Laboratory of Synthetic and Natural Functional Molecule Chemistry, Ministry of Education, Department of Chemistry, Northwest University,Key Laboratory of Synthetic and Natural Functional Molecule Chemistry, Ministry of Education, Department of Chemistry, Northwest University,Key Laboratory of Synthetic and Natural Functional Molecule Chemistry, Ministry of Education, Department of Chemistry, Northwest University
Zhao Yaqin,Yan Jun,Liang Aihua,Yang Binsheng
conditions. In 100 mM Hepes and 150 mM NaCl at pH 7.4, fluorescence emission of ME appeared at about 353 nm.
2011-11-07
Natural Science Foundation of Shanxi Province (No. 20100110111 and 2011021006-1)
ph.D Programs Foundation of Ministry of Education of the People’s Republic of China (No.20091401110007 )
National Natural Science Foundation of P R China (No.20771068 and No. 20901048)
Institute of Molecular Science, Shanxi University, Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Shanxi University, Taiyuan 030006, China,Institute of Molecular Science, Shanxi University, Taiyuan 030006, China, Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Shanxi University, Taiyuan 030006, China
2015-12-09
采用明胶-黄原胶为基质,制备了含吡唑啉酮类光致变色化合物的复合薄膜。利用扫描电镜研究复合薄膜的形貌,采用共聚焦拉曼光谱仪、荧光光谱仪和紫外-可见吸收光谱仪研究复合薄膜光致变色性能及其变色机理,研究结果表明吡唑啉酮类化合物以微米级颗粒均匀分散到明胶-黄原胶聚合物基质中,聚合物基质对吡唑啉酮类化合物的结构及其变色性能没有较明显的影响。
高等学校博士学科点专项科研基金(2011650113001)
新疆大学应用化学研究所,乌鲁木齐 830046,新疆大学应用化学研究所,乌鲁木齐 830046,新疆大学应用化学研究所,乌鲁木齐 830046,新疆大学应用化学研究所,乌鲁木齐 830046
#化学#
本文收录在中国科技论文在线精品论文,2016,9(7):753-758.
2013-05-07
本文采用分散聚合和种子溶胀法制备出粒径5.5μm的聚苯乙烯交联微球,通过溶胀吸附的方法将苯基氟硼吡咯负载到聚苯乙烯微球中,获得荧光微球。对比不同溶胀体系的荧光染料负载效果,发现水-四氢呋喃体系获得的荧光微球染料负载均匀,荧光强度高,利用分光光度法测得微球中染料含量最高可达3.41mg/g。分别采集苯基氟硼吡咯和荧光微球在不同分散体系中的荧光发射光谱,对比可知染料在微球中具有稳定的光谱性质。
2013-11-29
合成了罗丹明6G-磷钼酸(R6G-PMA)和罗丹明B-磷钼酸(RhB-PMA)两种复合纳米微粒,并且用扫描电子显微镜、紫外-可见吸收光谱、荧光光谱、共振光散射(RLS)光谱对复合纳米微粒进行了表征。RhB-PMA复合纳米微粒的平均粒径为343±144 nm。R6G-PMA和RhB-PMA复合纳米微粒具有优异的光学性能,最大吸收波长分别为562 nm和555 nm,其荧光峰分别位于581 nm和580 nm。复合纳米微粒的吸收波长和荧光峰波长都比相应的罗丹明染料发生红移,且表现出强烈的共振光散射增强效应,R6G-PMA和RhB-PMA的最大RLS峰波长分别为581 nm和654 nm。这表明在复合纳米微粒中相邻的罗丹明染料分子之间存在强烈的电子耦合。制备了R6G-PMA修饰玻碳电极,研究了H2O2在R6G-PMA修饰电极上的电化学行为。结果表明该修饰电极对H2O2有着明显的电化学信号,且在H2O2浓度为3.3×10-6 mol/L~5.6 10-5 mol/L的范围内呈线性响应,回归方程为Current/μA= 1.366 + 0.1553C/(10-6 mol/L),相关系数r2为0.9921,检出限(3σ)为2.0×10-8 mol/L。该修饰电极对尿酸和抗坏血酸有较好的抗干扰能力,可以在尿酸和抗坏血酸共存的情况下测定H2O2。
2013-03-04
用分子束外延(MBE)设备在Si(100)衬底上成功制备了单一相的ZnS纳米薄膜,并初步研究了其光学特性。研究表明:ZnS纳米薄膜的紫外-可见吸收峰在250 nm处,相对于体材料紫外吸收峰发生了明显的蓝移。在激发波长为315 nm的激发下,获得了一个强的荧光发光峰,峰位位于464 nm。由其紫外吸收谱知,荧光发光非本征发光,是缺陷发光。不同生长条件下,发光峰峰位有明显移动。
2013-05-23
利用罗丹明B衍生物与Hg2+配位后会引起螺旋内酰胺结构开环这一机理,以罗丹明B为母体,将呋喃环引入硫化罗丹明B酰肼,设计合成了一种基于罗丹明B的新型Hg2+选择性"Off-On"型荧光探针RB-SO。在乙醇-水(1:1,v/v)溶液中该探针本身没有颜色,没有荧光;而加入Hg2+后,溶液变成粉色,且在589 nm处产生荧光。该探针对Hg2+有很好的选择性和灵敏度,是一种比色和荧光双响应荧光探针。
南京工业大学理学院,南京 211816,南京工业大学 理学院,南京 211816,南京工业大学 理学院,南京 211816,南京工业大学 理学院,南京 211816
#化学#
2008-01-23
本文采用UV光谱、荧光发射光谱研究了阴离子表面活性剂SDS与离子液体[bmim][PF6]的相互作用,结果表明SDS胶束对[bmim][PF6]固有近紫外吸收和荧光发射具有显著敏化作用; 1H NMR实验结果表明[bmim][PF6]在SDS胶束中的增溶部位为SDS胶束栅栏层,[bmim][PF6]渗入SDS胶束栅栏层的最大深度为SDS分子的C3亚甲基附近。