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A Novel Optical Properties of Molecular “Light Switch” and its Analytical Application

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Chinese Chemical Letters 2004年第10期15卷 1201-1204页

作者： FangCHEN JianPingHUANG XinPingAI ZhiKeHE collegeofchemistry＆molecularsciences WuhanUniversityWuhan430072

Because of the high affinity (KB 106 L mol-1) between Ru(phen)2(dppz)2+and DNA, the adding of DNA in the solution of Ru(phen)2(dppz)2+-SDS makes the dissociation of Ru(phen)2(dppz)2+-SDS, and results in decrease of the resonance light scattering (RLS) signals and increase of the absorbance. Based on this, a novel method is proposed for DNA assay.

关键词： Ru(phen)2(dppz)2+ SDS DNA resonance light scattering.

A Novel Method for the Selective Determination of Silver (I) Ion

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Chinese Chemical Letters 2004年第11期15卷 1319-1322页

作者： JianGongLIANG HaiYanXIE XinPingAI ZhiKeHE DaiWenPANG collegeofchemistry＆molecularsciences WuhanUniversityWuhan430072

Water-soluble CdSe quantum dots (QDs) capped by bovine serum albumin (BSA) is described as selective silver (I) ion probe based on their fluorescence (FL) quenched by silver ion at pH 5.7. The detection limit is 3×1... 详细信息

关键词： Quantum dots silver(I) ion determination.

The Unusual Spectrum of the Mixture of Tin-octabutoxy Naphthalocyanine and SnCl_2 in CH_2Cl_2

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Chinese Chemical Letters 2005年第4期16卷 497-500页

作者： QuanZhenHUANG GongZhenCHENG HaiBoZHANG SongTaoDING XiaoBingYANG XiaoHaiZHOU GaoYongZHANG collegeofchemistry＆molecularsciences WuhanUniversityWuhan430072 ResearchInstituteofChemicalDefence Beijing100083

The Q-band position of tin-centered 5, 9, 14, 18, 23, 27, 32, 36-octabutoxy 2, 3- phthalocyanine(SnNc(OBu)8) exhibits dramatic red-shift as mixed with SnCl2 in CH2Cl2.

关键词： Q-band SnNc(OBu)8 red-shift.

Large-scale synthesis of single-source, thermally stable, and dual-emissive Mn-doped Zn-Cu-ln-S nanocrystals for bright white light-emitting diodes

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Nano Research 2015年第10期8卷 3316-3331页

作者： Lucheng Peng Dongze Li Zhuolei Zhang Keke Huang Ying Zhang Zhan Shi Renguo Xie Wensheng Yang StateKeyLaboratoryofInorganicSynthesisandPreparativeChemistry CollegeofChemistryJilinUniversityChangchun130012China StateKeyLaboratoryforSupramolecularStructureandMaterials CollegeofChemistryJilinUniversityChangchun130012China

The global demand for resource sustainability is growing. Thus, the development of single-source, environment-friendly colloidal semiconductor nanocrystal （NC） phosphors with broadband emission spectra is highly desirable for use as color converters in white light-emitting diodes （WLEDs）. We report herein the gram-scale synthesis of single-source, cadmium-free, dual-emissive Mn-doped Zn-Cu-In-S NCs （d-dots） by a simple, non-injection, low-cost, one-pot approach. This synthesis method led to the formation of NCs with continuously varying compositions in a radial direction because each precursor had a different reactivity. Consequently, the d-dots exhibited two emission bands, one that could be attributed to Mn emission and a second that could be ascribed to the band edge of the Zn-Cu-In-S NCs. The emission peaks assigned to band edge were tunable by modifying the particle size and composition. The prepared d-dots also exhibited the characteristic zero self-absorption, a quantum yield of 46%, and good thermal stability. Combining a commercial blue light-emitting diode （LED） chip with optimized d-dots as color converters gave a high color rendering index of up to 90, Commission Internationale de l＇eclairage color coordinates of （0.332, 0.321）, and a correlated color temperature of 5,680 K. These results suggest that cadmium-free, thermally stable, single-phase d-dot phosphors have potential applications in WLEDs.

关键词： white light-emitting diodes(WLEDs) nanocrystals cadmium free Mn-doped Zn-Cu-In-S lighting

Synthesis and Structure of 6-(4-Fluorobenzylamino)-3-methylthio-1,5-diphenyl-1H-pyrazolo[3,4-d]pyrimidin-4(5H)-one

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Chinese Journal of Structural Chemistry 2004年第10期23卷 1133-1137页

作者：王宏青刘钊杰丁明武 collegeofchemistry CentralChinaNormalUniversityWuhan430079China

The title compound (C25H20FN5OS) has been synthesized and its crystal structure was determined by X-ray analysis. The crystal belongs to the orthorhombic system, space group Pbca with a = 10.327(4), b = 20.307(7), c = 21.234(9) ? α = 90, β = 90, γ = 90, V = 4453(3) 3, Z = 8, Dc = 1.365 g/cm3, Mr = 457.52, μ = 0.182 mm-1, F(000) = 1904, the final R = 0.0600 and wR = 0.0932 for 3911obsered reflections with I≥2σ(I). In the title compound, the S(1), C(1), C(2), C(3), C(4), C(5), N(1), N(2), N(3), N(4), O(1) and N(5) atoms form a mean planeⅠroughly within the average deviation of 0.0207 ? The dihedral angles between planesⅠandⅡ(C(19)C(20) C(21)C(22)C(23)C(24)),Ⅲ(C(6)C(7)C(8)C(9)C(10)C(11)) and Ⅳ(C(12)C(13)C(14) C(15)C(16)C(17)C(18)F(1)) are 21.40, 84.00 and 75.88, respectively.

关键词： dihydropyrazolo[3 4-d]pyrimidin-4-one synthesis crystal structure

Synthesis and Characterization of AlPO_4-11 and MAPO-11 Single Crystals

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Chemical Research in Chinese Universities 2004年第2期20卷 131-133页

作者： LIJian-jun LIGuo-dong XIChun-yu GUOYing CHENJie-shengt StateKeyLaboratoryofInorganicSynthesisandPreparativeChemistry CollegeofChemistry，JilinUniversityChangchun130023

The preparation of two types of molecular sieves AlPO 4-11 and MAPO-11 is reported. The particle size of the latter is hundreds of microns, about 10 times larger than that of the former. The XRD, IR and DTA spectra have demonstrated that magnesium has been introduced into the framework of AlPO 4-11. The successful preparation of large single crystal of MAPO-11 will open up a new area for the preparation of large molecular sieves crystals in the future. The large MAPO-11 crystal compound is a promising host for the host-guest assembly of composite materials.

关键词： Single crystal MAPO-11 Molecular sieve Host-guest

Thermokinetic Behaviour Degenerated from Limit Cycle Oscillation of Isothermal B-Z Reaction System due to Temperature Controlling of Heat Compensation Type

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Chinese Chemical Letters 2004年第9期15卷 1075-1078页

作者： WenHuaZHANG JiuLiLUO InstituteofChemicalPhysics CollegeofChemistrySichuanUniversityChengdu610064

The thermokinetic behavior of the B-Z reaction system was influenced by both the chemical reaction-heat conduction coupling and the temperature undulation due to temperature controlling of heat compensation type. Quantitative research indicated that this kind of temperature fluctuation will lead to limit cycle degeneration and the periodic or quasi-periodic response behavior of the focus near a supercritical Hopf bifurcation .

关键词： Temperature undulation thermokinetic behavior B-Z reaction system.

Effect of Alkali Treatment on the Structure and Catalytic Properties of ZSM-5 Zeolite

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Chinese Chemical Letters 2005年第1期16卷 115-118页

作者： ZiYunLI XinSUN QiangXIAO ShouHeXIANG collegeofchemistry NankaiUniversityTianjin300071

Catalytic properties of ZSM-5 zeolite samples pretreated with NaOH solution have been investigated. The samples are characterized by XRD, SEM, chemical analysis, and N2 adsorption. The results indicate that mesopores are created in ZSM-5 crystals under alkali treatment without change the microporous structure and acidic strength of the zeolite, but the crystallinity is greatly decreased under severe treatment. IR indicates that the concentration of silanol is greatly enriched by alkali treatment. The etherification activities of ZSM-5 zeolites are greatly increased by alkali-treatment. The noticeably improved catalytic activity of treated samples is ascribed to the formation of mesopores and greatly enriched silanol group.

关键词： Alkali treatment ZSM-5 zeolite ETBE etherification.

Effect of TiO_2 Support on the Composition, Morphology and Catalytic Property of the NiB Amorphous Alloy Catalyst

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Chinese Chemical Letters 2004年第11期15卷 1357-1360页

作者： LaiJunWANG MingHuiZHANG WeiLI KeYiTAO collegeofchemistry NankaiUniversityTianjin300071

Both the unsupported and supported NiB amorphous alloy catalysts (NiB and NiB/TiO2) were prepared by the chemical reduction method. Their catalytic activities were tested by the hydrogenation of sulfolene. The interac... 详细信息

关键词： NiB/TiO2 amorphous catalyst hydrogenation sulfolene interaction.