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中国科学:化学 2012年第10期42卷 1490-1490页

作者： JIN LiQun & LEI AiWen* college of chemistry and {2. sciences,wuhan university,wuhan 430072,china college of chemistry and {2. sciences wuhan university wuhan 430072 china

Palladium-catalyzed aerobic transformation has been one of the most challenging topics within organometallics ***,the corresponding methodology has been developed rapidly,involving alcohol oxidation,alkene oxidation,oxidative coupling and so on,which stimulated considerable interests in mechanistic investigation of the oxidation of Pd with *** review summarizes most of the mechanistic studies on this topic during the past ten ***,the future of the mechanistic investigation for aerobic oxidation of Pd is also discussed.

关键词： palladium O2 mechanism

3,4-Dichlorotoluene Ammoxidation to 3,4-Dichlorobenzonitrile over VPO/SiO_2.Catalyst

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wuhan university Journal of Natural {2. 2002年第3期7卷 353-355页

作者： Huang Chi, Xiao Di, Xu Hai\|xia, Zheng Qiong, Chen Yuan\|yin college of chemistry and {2. sciences, wuhan university, wuhan 430072, hubei. china wuhan university College of Chemistry and Molecular Sciences Wuhan Hubei China (GRID:grid.49470.3e) (ISNI:***)

Ammoxidation of 3,4\|dichlorotoluene(DCT) to prepare 3,4\|dichlorobenzonitrile (DCBN) over silica supported vanadium phosphorus oxide catalysts has been studied. On the VPO/SiO 2. catalyst, the influence of the reaction temperature, the molar ratio of air/DCT, the molar ratio of NH 3 /DCT in the feed gas and the space velocity ( v s) on the conversion, yield and selectivity was observed. The most appropriate reaction condition is: reaction T =673 K, n (DCT)∶ n (NH 3 )∶ n (air)=1∶7∶30 and v s=2.0 h -1 . At this optimum reaction condition, the conversion of DCT is 97.8%; the molar yield of DCBN is 67.4%. It was found that the addition of element phosphorus can improve the yield of DCBN compared with VO/SiO 2. catalyst.

关键词： ammoxidation 3,4\|dichlorotoluene 3,4\|dichlorobenzonitrile VPO/SiO 2

Applications of functionalized ionic liquids

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Science china chemistry 2006年第5期49卷 385-401页

作者： LI Xuehui1, ZHAO Dongbin2.3, FEI Zhaofu2.& WANG Lefu1 1. Department of Chemical Engineering, Guangdong Provincial Laboratory of Green Chemical Technology, South china Uni-versity of Technology, Guangzhou 510641, china 2. Swiss Federal Institute of Technology, Lausanne, EPFL, CH-1015 Lausanne, Switzerland 3. PKU Green {2. Center, Beijing National Laboratory for molecular sciences, college of {2. and molecular Engineering, Peking university, Beijing 100871, china 1. Department of Chemical Engineering Guangdong Provincial Laboratory of Green Chemical Technology South China University of Technology Guangzhou 510641 China 2. Lausanne EPFL Swiss Federal Institute of Technology CH-1015 Lausanne Switzerland 3. PKU Green chemistry Center Beijing National Laboratory for Molecular Sciences College of Chemistry and Molecular Engineering Peking University Beijing 100871 China

Recent developments of the synthesis and applications of functionalized ionic liquids (including dual-functionalized ionic liquids) have been highlighted in this review. Ionic liquids are at-tracting attention as alternative solvents in green chemistry, but as more functionalized ILs are pre-pared, a greater number of applications in increasingly diverse fields are found.

关键词： ionic liquids functionalized ionic liquids dual-functionallzed ionicliquids reaction media asymmetric synthesis nano-materials porous materials lubricants flue-gas desulfurization oil desul-furization

Effect of Ultrafine Grinding on Dissolving-out Quantity of Tanshinone IIA from Radix Salvia Miltiorrhiza

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Journal of wuhan university of Technology(Materials Science) 2009年第6期24卷 973-976页

作者：苏艳丽傅正 college of chemistry Chemical Engineering and Material ScienceSoochow UniversitySuzhou China State Key Laboratory of Advanced Technology for Material Synthesis and Processing Wuhan University of Technology

In order to improve the bioavailability, Radix salvia miltiorrhiza raw powder mixed with distilled water （5.5wt%） was ultrafinely ground to nanosize particles using HSCS pulverizer, and the dissolving-out quantity of tanshinone IIA in the filtrate that obtained from nanoparticles suspension and raw powder marinated in water for different time was determined by HPLC. The experimental results show that raw powder can be ultrafinely ground to 133.5 nm at 1500 r/min for 50 min and the molecular structure of active ingredients doesnot change, and the dissolving-out quantity of tanshinone IIA obtained from the filtrate is increased greatly from 12.77 μg/g to 54.55 μg/g.

关键词： Radix salvia miltiorrhiza tanshinoe IIA HPLC dissolving-out quantity

Ab Initio and SAR Investigations of the HO2.+ RO2.Reactions

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Ab Initio and SAR Investigations of the HO2 + RO2 Reactions

molecular evolution of connective tissue growth factor in Cyprinidae (Teleostei:Cypriniformes)

第九届全国化学动力学会议

作者： Hua Hou,Baoshan Wang college of chemistry and {2. sciences, wuhan university, wuhan 430072

＜正＞The HO2.RO2.reactions play important roles in atmospheric chemistry. Neither mechanism nor kinetics has been studied theoretically. In this work, high-level ab initio methods are employed to investigate the potential energy surface. Transition state theory is used to calculate the rate coefficients as a function of temperatures and pressures. Moreover, a structure-activity relationship （SAR） is build for this type of reactions. Some important findings are as follows:

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来源： cnki会议评论

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Progress in Natural Science:Materials International 2008年第2期18卷 155-160页

作者： Xianghui Kong a,b,Xuzhen Wang a,Xiaoni Gan a,Junbing Li a,Shunping He a,a Institute of Hydrobiology,Chinese Academy of sciences,wuhan {2.,china b college of Life Science,Henan Normal university,Xinxiang 453007,china Institute of Hydrobiology Chinese Academy of Sciences Wuhan 430072 China college of Life Science Henan Normal University Xinxiang 453007 China

Connective tissue growth factor (CTGF) plays an important role in regulation of cell growth,differentiation,apoptosis and individual development in animals. The study of sequences variation and molecular evolution of CTGF gene across various species of the cyprinid could be helpful for understanding of speciation and gene divergence in this kind of fish. In this study,19 novel sequences of CTGF gene were obtained from the representative species of the family Cyprinidae using PCR amplification,cloning and sequencing. Phylogenetic relationships of Cyprinidae were reconstructed by neighbor-joining (NJ),maximum parsimony (MP),maximum likelihood (ML) and Bayesian method. Oryzias latipes from the family Cyprinodontidae was assigned to be the outgroup taxon. Leuciscini and Barbini were clustered into the monophyletic lineages,respectively,with the high nodal supports. The estimation of the ratio of non-synonymous to synonymous substitution (dN/dS) for the various branches indicated that there stood the different evolution rates between the Leuciscini and the Barbini. With the ratio of dN/dS of the Leuciscini being lower than that of the Barbini,species within the Barbini were demonstrated to be subjected to the relatively less selection pressure and under the relaxable evolution background. A 6 bp indel (insertion/deletion) was found at the 50 end of CTGF gene of Cyprinidae,and this 6 bp deletion only appeared in the Leuciscini,which is a typical characteristic of the Leuciscini and provides evidence for the monophylogeny of the Leuciscini. For the amino acid sequences of CTGF protein,the most variations and indels were distributed in the signal region and IGFBP region of this protein,implying that these variations were correlated with the regulation of the CTGF gene expression and protein activity.

关键词： Connective tissue growth factor Sequence variation molecular evolution Cyprinidae

The anharmonic effect study of coupled Morse oscillators for the unimolecular reaction

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Science china chemistry 2008年第12期51卷 1146-1152页

作者： YAO Li1,2.& LIN Sheng-Hsien2.31 Department of Physics, Dalian Maritime university, Dalian 11602., china 2.Institute of Atomic and {2. sciences, Academia Sinica, Taipei 10764, china 3 Department of Applied chemistry and Institute of {2. sciences, Chiao-Tung university, Hsinchu 30051, Taiwan, china 1. Department of Physics Dalian Maritime University Dalian 116026 China 2. Institute of Atomic and molecular sciences Academia Sinica Taipei 10764 China 3. Department of Applied chemistry and Institute of molecular {2. Chiao-Tung University Hsinchu 30051 Taiwan China

The importance of anharmonic effect in dissociation of molecular systems especially clusters has been noted. In this paper, we shall study the effect of coupled anharmonic oscillator of the standard bilinear form (SBF) Morse oscillator (MO) potential on unimolecular reaction. We shall use the systematic theoretical approach, YL method, proposed by Yao and Lin (YAO L, et. al. J Phys Chem A, 2.07, 111(2.): 672.-672.), which can evaluate anharmonic effects on the rate constants based on the transition state theory. In treating the anharmonic effect with the Morse oscillator potential on unimolecular reactions under collision-free conditions by using the RRKM (Rice-Ramsperger-Kassel-Marcus) theory, the in-verse Laplace transformation of the partition functions was used to obtain the total amount of state and density of state by using the first-order and the second-order approximations of the saddle-point method. To demonstrate the anharmonic effect of the SBF Morse model, we choose some model systems and a real reaction as examples.

关键词： anharmonic effect standard bilinear form Morse oscillator rate constant RRKM theory

碱基在十二胺-N,N-二亚甲基膦酸改性氧化锆固定相上色谱行为的研究

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色谱 2005年第1期23卷 69-72页

作者：姚礼峰冯钰錡达世禄武汉大学化学与分子科学学院

研究了碱基在十二胺 N,N 二亚甲基膦酸(DDPA)改性氧化锆固定相(DPZ)上的色谱保留行为,考察了流动相中甲醇含量、流动相pH值、缓冲溶液中离子类型和离子强度对碱基保留的影响,对DDPA在氧化锆表面的吸附方式进行了研究。研究结果表明,DDP... 详细信息

研究了碱基在十二胺 N,N 二亚甲基膦酸(DDPA)改性氧化锆固定相(DPZ)上的色谱保留行为,考察了流动相中甲醇含量、流动相pH值、缓冲溶液中离子类型和离子强度对碱基保留的影响,对DDPA在氧化锆表面的吸附方式进行了研究。研究结果表明,DDPA仅以一个膦酸基与氧化锆结合,因而DPZ固定相表面上除了有长链的疏水烷基外,还有酸性的膦酸基和碱性的氨基。碱基分子中也存在氨基和酰胺基等极性基团,因此碱基在DPZ固定相上除了有疏水作用外,还具有电荷排斥作用、离子交换作用等多种保留机理。由于多种保留机理的存在,使得碱基在DPZ固定相上具有较好的分离选择性,在酸性条件下对碱基混合样品的分离取得了满意的结果。

关键词：氧化锆十二胺-N N-二亚甲基膦酸碱基

Utilization of a spiropyran derivative in a polymeric film optode for selective fluorescent sensing of zinc ion

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Science china chemistry 2006年第3期49卷 246-255页

作者： ZHANG Ying1, SHAO Na1, YANG Ronghua1, LI Ke’an1, LIU Feng1, CHAN Winghong2.& MO Tian2.1. college of chemistry and {2. Engineering, Peking university, Beijing 100871, china 2. Department of chemistry, Hong Kong Baptist university, Hong Kong, china 1. college of chemistry and {2. Engineering Peking University Beijing 100871 China 2. Department of chemistry Hong Kong Baptist University Hong Kong China

A new spiropyran derivative was synthesized and first utilized in a polymericfilm-based optical sensor for zinc ion. Spiropyrans, combining the characteristics of metal bindingand signal transduction, show potential function in the design of optical chemical sensors(optodes) toward metal ions. When embedded in a plasticized poly (vinyl chloride) (PVC) membrane,the newly synthesized spiropyran derivative 1 exhibits obvious fluorescence enhancement at 630 nm inthe presence of zinc ion in aqueous solution. With the optimum condition described, the optodemembrane responds to zinc ion over a dynamic range of 4.94x10^(-7) to 4.15x10^(-4)mol·L^(-1), witha detection limit of 1.51x10^(-7) mol·L^(-1). The membrane not only displays excellentphotostability, reproducibility and reversibility, but also exhibits high selectivity toward zincion over transition metal ions including Hg^(2.), Cd^(2.), Pb^(2.), Cu^(2.), Fe^(3+) and commoncationic ions presented in the physiological fluids.

关键词： spiropyran, sensor, PVC membrane, zinc ion, fluorescent spectroscopy.