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chemical research in chinese Universities 1990年第4期6卷 262-265页

作者： Yu Kaibei and Zhou Zhongyuan (Chengdu center of Analysis and Determination, Academia Sinica, Chengdu)Gou Shaohua, You Xiaozeng and Xu Zheng (Coordination chemistry Institute, Nanjing university, Nanjing)

The crystal and molecular structure of copper(Ⅱ) dimeric complex of S-methyl-B-N-(pyridine N-oxide-2-ylmethylidene) dithiocarbazate with acetonitrile, [CuL (CH3CN)]2 (ClO4)2, was determined by X-ray diffraction. The complex crystalizes in monoclinic system with space group P21/n, a= 7. 685(2), 6=20.160(6), c= 10. 847(5) A ,B = 107.89(3), Z=2,Dc=1.788 g/cm3, F(000) = 835. 8, u= 18. 17 cm-1(Moka,R= 0. *** Cu(Ⅱ) ion in the complex is surrounded by a distorted square pyramidal. The basal plane is comprised of S, N and O atoms of one ligand together with a N atom of the solvent--acetonitrile, while the axial position is occupied by the S atom of the other ligand. The bond length of Cu-S(bridging) is 3. 038A . and Cu-Cu distance is 3. 700A.

关键词： Complex of Cu (Ⅱ) Crystal and molecular structure Dimeric complex S-methyl-β-N-(pyridine N-oxide-2-ylmethyndene)dithiocarbazate

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Removal of Strontium from Aqueous Solution by Diatomite

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Removal of Strontium from Aqueous Solution by Diatomite

2011 IEEE International Conference on Waste Recycling,ecology and Environment(ICWREE 2011)

作者： Wei ZHANG1 Faqin DONG2 * Bo WU3 Huanqing SONG4 Hailiang DONG5 1 Analytical and Testing center Southwest university of Science and Technology Mianyang china 2 Key Laboratory of Solid Waste Treatment and Resource Recycle Ministry of Education Mianyang china 3 School of National Defense Science and Technology Southwest university of Science and Technology Mianyang china 4 School of Environment and Resource Southwest university of Science and Technology Mianyang china 5 Department of Geology Miami university Oxford U.S.A

Diatomite was investigated as an adsorbent to remove strontium （II） from aqueous solution. The results demonstrate that diatomite can be successfully used as an adsorbent for the removal of heavy metal/ radionuclide ions from aqueous solution. PH value of the solution was an important factor for both solution chemistry of metals and adsorbent. The adsorption capacity of diatomite with strontium ions was better in acid condition. The removal rate rose as the dosage of diatomite increased, and declined as the concentration of strontium ions increased. While, the adsorption capacity declined as the dosage of diatomite increased, and rose as the concentration of strontium ions increased. The kinetics research indicated that the adsorption of strontium ions on diatomite was a rapid process. The removal rate and adsorption capacity could reach 95% of adsorption equilibrium in 60 minutes. The experimental results were fitted well to PSO kinetics model.

关键词： diatomite strontium ions adsorption PSO model

Stereoselective Synthesis and Bioactivity of Novel Isosteviol Derivatives with C/D-Ring Modification

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Stereoselective Synthesis and Bioactivity of Novel Isostevio...

有机合成创新—产业化的新动力——中国化学会全国第三届有...

作者： An,Yajie Wu,Ya Liu,Congjun Yang,Jinghua Tao,Jingchao~* (Department of chemistry,New Drug research & Development center,Zhengzhou university,Zhengzhou 450052)

Isosteviol deravative with formyl group and vinyl moiety 1,an useful and easily available bioactive compound obtained from the natural product isosteviol,was found to be easily converted to its corresponding rearrangement products of isosteviol substituted with amino group 2-12,while treated with different aniline derivatives in the presence of catalytic amount of BF·OEt via an unexpected nuclearphilic addition,cyclization

关键词： isosteviol derivative carbocation rearrangement antibacterial activity

超声化学的基本原理及其在化学合成和环境保护方面的应用

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山东科学 2004年第1期17卷 51-54页

作者：陈贯虹王西奎孙士青党立王萍山东省科学院中日友好生物技术研究中心山东济南250014 济南大学山东济南250022 山东中医药大学山东济南250014

超声波技术作为一种物理手段和工具,能够在化学反应常用的介质中产生一系列接近于极端的条件,这种能量不仅能够激发或促进许多化学反应、加快化学反应速度,甚至还可以改变某些化学反应的方向,产生一些令人意想不到的效果和奇迹。目前对... 详细信息

超声波技术作为一种物理手段和工具,能够在化学反应常用的介质中产生一系列接近于极端的条件,这种能量不仅能够激发或促进许多化学反应、加快化学反应速度,甚至还可以改变某些化学反应的方向,产生一些令人意想不到的效果和奇迹。目前对超声化学的研究已涉及到化学、材料学、环保等许多领域。本文介绍了超声化学的基本原理及其在有机合成、治理难生物降解有毒有机污染物方面的应用。

关键词：超声化学化学合成环境保护降解

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几种N-2(2-吡啶)乙基苯胺衍生物的结构测定

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分析化学 1982年第12期 730-735页

作者：徐广智王玉珍陈荣跃沈其丰罗广荣中国科学院化学研究所北京化工研究院

为了制备适当催化剂使甲醇羰基化为醋酸,我们合成了六个具有两个不同络合能力的基团的新络合剂,用1H—。18C—NMR等方法测定其结构。实验部分 N—2—（2—吡啶）乙基苯胺衍生物的制备:这些衍生物除Ⅰ外均为新的化合物,可从改进的已知方... 详细信息

为了制备适当催化剂使甲醇羰基化为醋酸,我们合成了六个具有两个不同络合能力的基团的新络合剂,用1H—。18C—NMR等方法测定其结构。实验部分 N—2—（2—吡啶）乙基苯胺衍生物的制备:这些衍生物除Ⅰ外均为新的化合物,可从改进的已知方法制备。以对甲苯胺衍生物的制备方法为例详述如下:

关键词：衍生物乙基苯胺结构测定 N-2 偶合常数

Time-Resolved Photoluminescence Spectra of Porous Si

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chemical research in chinese Universities 1995年第1期11卷 58-63页

作者： FEI Hao-sheng HAN Li CHE Yan-long NIE Rui-juan and LI Tie-jin(Deparrment of Physics and Deparrment of chemistry ,Jilin university , Changchun , 1 30023 ) JILIN UNIV DEPT PHYSCHANGCHUN 130023PEOPLES R CHINA JILIN UNIV DEPT CHEMCHANGCHUN 130023PEOPLES R CHINA

he photoluminescence spectra of porous Si have been studied. Its timere-solved luminescence spectra show a red shift of luminescencc peak with increasingdelay time after exciting and a nonexponential decay. Several spectral bands withdifferent Gaussian center appear by means of the decomposition of a spetrum. Theresuits of our experiments show quantum confined characters in porous Si, and wespeculate that the short wavelength band at 465 nm is the direct band froni P_(15) toP_(25)

关键词： Porous Si Time-resolved spectra Nanocrystal Photoluminescence

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Regioselective Synthesis of Novel Pyrazole Subunit Containing Isosteviol Derivatives

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Regioselective Synthesis of Novel Pyrazole Subunit Containin...

有机合成创新—产业化的新动力——中国化学会全国第三届有机合成化学与过程学术讨论会

作者： Liu,Congjun Wu,Ya Xu,Hao Lan,Yubao Zhao,Hua Tao,Jingchao~* (Department of chemistry,New Drug research & Development center,Zhengzhou university,Zhengzhou 450052)

A large amount of interests have been raised in pyrazole derivatives that exhibit wide applications in the field of medicine,agricultural chemicals,perfume and so on,due to possessing a range of bioactivity including pesticidal, bactericidal,antimicrobial,antivirus,anticancer and other biological activities. In view of pyrazole subunit containing isosteviol derivatives(1,2) with high in vitro cytotoxic activities against mice melanoma cell lines(B 1 6-F1 0) that had been synthesized in our group,a series of novel isosteviol

关键词： isosteviol derivatives regioselective synthesis bioactivities

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X射线荧光光谱法测定锰结核中锰的价态

分析化学 1989年第8期17卷 710-712页

作者：袁汉章宫清北京有色金属研究总院中南工业大学

本文研究了锰的Kβ1.3谱线位移与元素价态之间的关系。以金属锰作为参考物质,测定不同化合物中MnKβ1.3谱线位移,它们的相对差值Δ2θ=2θ°(金属锰)—2θ°(样品),作为判断锰的价态依据。来源于太平洋深海中锰结核的锰价态主要以+4价... 详细信息

本文研究了锰的Kβ1.3谱线位移与元素价态之间的关系。以金属锰作为参考物质,测定不同化合物中MnKβ1.3谱线位移,它们的相对差值Δ2θ=2θ°(金属锰)—2θ°(样品),作为判断锰的价态依据。来源于太平洋深海中锰结核的锰价态主要以+4价存在。

关键词： X 射线荧光光谱分析锰结核锰价态分析

Prepartation Microorganism Composited Magnetic Sorbent for Cleaning Marine Crude Oil Spills

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Prepartation Microorganism Composited Magnetic Sorbent for C...

2011 IEEE International Conference on Waste Recycling,ecology and Environment(ICWREE 2011)

作者： Shiyong SUN1 2* Faqin DONG1 Jia LUO3 Tingting HUO1 Lizhu LIU1 1Key Laboratory of Waste Solid Treatment and Resource Recycle of Ministry of Education Mianyang Sichuan china 2School of Environment and Resource Southwest university of Science and Technology Mianyang Sichuan china 3 Department of chemistry Monmouth university 400 Cedar Avenue West Long Branch NJ USA

the objective of this study is preparing a novel environmental friendly light weight magnetic sorbent consisting of bacteria and cobalt by chemical process to further cleaning crude oil spills in sea. The observations by ESEM indicated that a thin granular layer covered on the surface of model microorganism of Staphylococcus epidermildis which provided host for absorbing cobalt ions and depositing cobalt particulates. The results showed that composite present flower-like microspheres with large-scale yields. The high temperature treatment of amorphous bacteria composited cobalt microspheres showed that it well crystallized corresponding to Co3O4 at 800 °C. The microorganism composited magnetic sorbent opens an important alternation absorbent for timely oil spill cleanup.

关键词： Mircoorganism Magnetic sorbent Crude oil spill Cleanup Biomorphic mineralization

THE ADVANCES MADE IN MICRO MACROMOLECULAR chemical EXPERIMENTS

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THE ADVANCES MADE IN MICRO MACROMOLECULAR CHEMICAL EXPERIMEN...

Third East Asian Polymer Conference

作者： Qing-Shan Li, Hao Xu , Qing-Song Li Department of Polymer Material engineering, Key Laboratory of Metastable Materials Science, Yanshan university, Qinhuangdao 066004, china

1. The development of the micro chemical experimentThe micro chemical experiment is first posed by Mayo during the organic chemical experiments of the institute of Bewdoin, Bown university of the USA, in *** made a report On the process of the micro chemical experiments in the American chemical annual meeting in *** series of theses were also published in the periodical of American chemical education. The book named the micro chemical chemical experiment, written by Mayo, was first published formally in 1986. Professor Zhou Ninghuai, from the teacher-training institute of Hang Zhou, introduced the situation of the application of the micro chemical experiment abroad to chemistry education, in the second academic meeting of the college chemical Education research center, hold in Peking university. And he began this item for research in our civil country and

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