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Crystal Structure and spectrum Character of Bis[1-(4-Methoxyphenyl)-3-(1H-1,2,4-Triazol-1-yl)-1-Propanone] dichorozinc(Ⅱ) Complex

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Journal of Beijing Institute of Technology 2005年第4期14卷 425-428页

作者：曹克广王忠卫孙成辉赵信岐 School of Material Science and Engineering Beijing Institute of Technology Beijing100081 ChinaChengde Petroleum College Chengde067000 China School of Chemical and Environment Engineering Shandong University of Science and Technology Qingdao266510 China School of Material Science and Engineering Beijing Institute of Technology Beijing100081 China

The titled new complex was synthesized and determined by X-ray diffraction. The crystal belongs to monoclinic, P-I group, a=1.8997（4）nm, b-0.581 07（12）nm, c=2.4209（5）nm, β-90.65（3）°, V=2.672 2（9） nm^3, Z=4, Dc= 1.488 g/cm^3, It has C2 symmetry with the axis through the Zn atom, and the zinc atom is coordinated by two N atoms of the 1-（4-methoxyphenyl） 3-（ 1H-1, 2, 4-triazol-1-yl）-1-propanone ligands and two C1^- atoms, forming a slightly distorted tetrahedron. Intermolecular hydrogen bonds make the complex stable. IR and electronic spectra study of the target complex were also carried.

关键词： 1H-1,2,4-triazol-1-yl complex crystal structure uv-vis spectrum

Surface-enhanced Raman Scattering from Molecules Adsorbed on Mixed Silver/Gold Nanoparticle Surfaces

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Chemical Research in Chinese Universities 2004年第6期20卷 817-820页

作者： FANGJing-huai HUANGYun-xia LIXia DOUXiao-ming InstituteofOpticsandPhotonics ShanghaiJiaotongUniversityShanghai200030P.R.China DepartmentofPhysics EastChinaNormalUniversityShanghai200062P.R.China DepartmentofChemistry ShanghaiTeachersUniversityShanghai200234P.R.China

Since the first discovery of Surface-Enhanced Raman Scattering(SERS) from pyridine molecules adsorbed at roughened silver electrodes in 1974 by Fleischmann et al.[1],the research of SERS has made tremendous progress i... 详细信息

关键词： Silver nanoparticle Gold nanoparticle uv-vis spectrum SERS

Synthesis and Spectral Characteristics for Zinc Tetraphenylporphyrin Modified Zinc Oxide Nanowires

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光谱学与光谱分析 2016年第S1期36卷 427-428页

作者： HUANG Hui-han KE Jian-xi XIE Wen-qiang PAN Hai-bo College of Chemistry Fuzhou UniversityFuzhou 350116 China

A nest-like architectures(ZnO NAs)were prepared onto the conductive glass(ITO)by hydrothermal method.A metal-free porphyrin,tetraphenylporphyrin(H2TPP),was synthesized via Adler *** ions with Zn-unsaturated coordination bonds on the surface of ZnO NAs were used as a template,and also H2TPP was used as"molecular fragments".Zinc tetraphenylporphyrin(ZnTPP)molecules were obtained on the surface of ZnO NAs by in-situ *** NAs direct provides of zinc source makes ZnTPP stably coated on the surface of ZnO NAs nanosheet,formed a tight composite materials(ZnTPP/ZnO NAs).Due toZnTPP with four phenyls in meso position,the surface of ZnTPP/ZnO NAs was with hydrophobic *** the photocatalytic experiment,the degradation selectivity for phenol(hydrophobicity)in the mixture of phenol and rhodamine B(hydrophily)was increased under visible irradiation.

关键词： ZnO In-situ Zinc tetraphenylporphyrin uv-vis spectrum Selective photocatalysis

Monitoring the hydrolyzation of aspirin during the dissolution testing for aspirin delayed-release tablets with a fiber-optic dissolution system

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Journal of Pharmaceutical Analysis 2012年第5期2卷 386-389页

作者： Yan Wang Ping-Ping Xu Xin-Xia Li Kun Nie Ming-Fu Tuo Bin Kong Jian Chen Department of Pharmacy Xinjiang Medical UniversityUrumqi 830054China Xinjiang FOCS Bio-Tech Co. Ltd.Urumqi 830011China

The purpose of this study was to investigate the hydrolyzation of aspirin during the process of dissolution testing for aspirin delayed-release tablets. Hydrolysis product of salicylic acid can result in adverse effects and affect the determination of dissolution rate assaying. In this study, the technique of differential spectra was employed, which made it possible to monitor the dissolution testing in situ. The results showed that the hydrolyzation of aspirin made the percentage of salicylic acid exceed the limit of free salicylic acid （4.0）, and the hydrolyzation may affect the quality detection of aspirin delayed-release tablets.

关键词： Aspirin delayed-releasetablets Drug dissolution test Fiber-optic dissolution system uv-vis spectrum

Synthesis and photochemical properties of two ICT compounds with naphthalimide and diarylamine units

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Journal of Southeast University(English Edition) 2008年第2期24卷 243-246页

作者：蒋伟唐霁楠孙岳明徐文连王华林东南大学化学化工学院南京211189

Two new diarylamine-substituted 1, 8-naphthalimide derivatives are synthesized by Cu I/18-crown-6/K2CO3 catalyst system and characterized by Fourier transform infrared （FT- IR）, ^1H-NMR and elemental analyses. The uv-vis absorption and photoluminescent （PL）spectra of the systems in n-hexane, tetrahydrofuran（THF）, and CH2Cl2 are investigated. These naphthalimide molecules have an absorption band centered at about 450 nm, which is assigned to an intramolecular chargetransfer （ICT）transition, and they emit light at 492, 501 nm in a nonpolar solvent such as n-hexane, and at 600, 620 nm in a polar solvent such as CH2Cl2. From the Lippert-Mataga equation, the difference of the dipole moment between the excited state and the ground state is estimated to be 9.2 and 9.8 D for 4- （ diphenylamine ）-N-（ 2-methoxyphenyl ）-1, 8-naphthalimide （ DMN-1 ） and 4-（ 2-naphthylphenylamine ）-N-（ 2- methoxyphenyl）-1, 8-naphthalimide （DMN-2）, respectively. This large change in the dipole moment upon excitation is typical for photoinduced ICT processes.

关键词： naphthalimide diarylamine photoluminescence uv-vis spectrum intramolecular charge transfer

Optical Properties of Nanosilver Synthesized by Chemical Reduction Method at Room Temperature

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Optical Properties of Nanosilver Synthesized by Chemical Red...

Synthesis of Ferrocenophanes with tetrazine side chain and its investigation on anion recognization

第十七届全国化学热力学和热分析学术会议

作者： S.Jiang A.M.Bai Y.J.Hu Hubei Key Laboratory of Pollutant Analysis ＆ Reuse Technology Department of ChemistryHubei Normal University

Nanosilver has been applied in many fields including surface-enhanced Raman spectroscopy（SERS）,surface enhanced fluorescence（SEF）,biomedicine and other areas due to the its unique physical and chemical *** this paper,nanosilver equipped with uniform dispertion,controllable partical size and morphology was prepared by chemical reduction method in aqueous *** reaction can be carried out at room temperature（298.15K）by taking silver nitrate as the source,sodium borohydride as a reducing agent,sodium citrate tribasic dihydrate and Polyvinylpyrrolidone as protective ***,we focused on the effects of reaction time,temperature,protective agents and so forth on the experimental *** analysis of uv–vis spectra（Fig.1）showed that the surface plasmon resonance（SPR）absorption peaks of asprepared nanosilver appeared at about 400 nm and 650 nm,which demonstrated the formation of nanosilver corresponding to different morphologies and particle *** addition,sharp and smooth peaks indicated a uniform dispersion.

关键词： Nanosilver chemical reduction method uv-vis spectrum surface plasmon resonance(SPR)

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Synthesis of Ferrocenophanes with tetrazine side chain and i...