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Is There any Hexazirconium Cluster in the Compounds [HP(t-Bu)_2.h_3]_3[Zr_6Cl_(18)H_5] and Zr_6Cl_(14)(PPr_3)_4H_4?

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Chinese Chemical Letters 1997年第9期8卷 829-830页

作者： Wen LI ChunHua HU Pei Ju ZHENG(Research Center of analysis and measurement,{2., shanghai 2.04.3) fudan UNIV RES CTR ANAL & MEASUREMENTSHANGHAI 200433PEOPLES R CHINA

The [Zr6(μ2.Cl)12.l6H4]3- ion with C4v Symmetry in the title compounds has been calculated by DV-Xα program. The calculated results show that ther is almost no available covalence bonding between zirconium atoms and significant Zr 4d AO compositions in the MOs. but there are much stronger Zr-Cl(bridging) bonding. All analysis results suggest that these compounds would be the cluster with Zr6Cl12.cage linked by Zr-Cl bridging bonding plus six Cl teminal ligands rather than the hexazirconium cluster in view of the chemical bonding.

关键词： and Zr6Cl PPr3 Is There any Hexazirconium Cluster in the Compounds t-Bu H5 Zr6Cl HP

Synthesis of Nanometer-sized Mesoporous Oxide Spheres

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Chemical Research in Chinese Universities 2001年第2期17卷 143-147页

作者： LUO Qian, LI Li, XUE Zhi-yuan and ZHAO Dong-yuan (Department of Chemistry analysis and measurement Center,{2., shanghai 2.04.3, P. R. china) fudan Univ Dept Chem Shanghai 200433 Peoples R China fudan Univ Ctr Anal & Measurement Shanghai 200433 Peoples R China

A few hundreds nanometer-sized mesoporous silica and alumina spheres were synthesized in organic solvents. The impacts of ammonia, N, N-dimethylformamide (DMF) and stirring speed were also investigated.

关键词： Nanometer-sized Mesoporous Sphere Silica Alumina

An investigation of chemically deposited Ni-P alloys by EXAFS and XRD

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Chinese Journal of Chemistry 1990年第3期8卷 239-245页

作者： MA,Li-Dun LU,Gang SHEN,Xiao-Liang Center for analysis and measurement,{2. university,shanghai 2.04.3 Center for analysis and measurement Fudan University Shanghai 200433

Five samples of chemically desposited Ni-P amorphous alloys were prepared and inves- *** these amorphous alloys there are Ni-P atom groups in which phosphorus and nickel are connected with strong *** atoms and Ni-P groups are deposited in a random manner on the surface of matrix and a quasilayer structure is *** spacing between two layers in alloys resembles that in(111)plane in the nickel *** there is a peak at the same position of 2.=44.4° as that of the(111)reflection of crystalline nickel in the X-ray powder diffraction pat- tern of ***,the dimension of Ni-P groups is different from that of a nickel atom and the atomic arrangement in the layer is in *** result in the space change and there is a distribution of spacing around the *** a consequence of distribution of spacings,the peak at 2.=44.4° is broadened and enhanced as the amount of P increases.

关键词： EXAFS An investigation of chemically deposited Ni-P alloys by EXAFS and XRD Ni

Origin of Chinese ancient glasses——study on the earliest Chinese ancient glasses

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Science china Technological Sciences 2006年第6期49卷 701-713页

作者： GAN Fuxi1,2. CHENG Huansheng1 & LI Qinghui2.1. fudan university, 2.0 Handan Road, shanghai 2.04.3,{2. 2. shanghai Institute of Optics and Fine Mechanics, CAS, P.O. Box 800-2.1, shanghai 2.1800,{2. fudan university 220 Handan Road Shanghai 200433 China shanghai Institute of Optics Fine Mechanics CAS P.O. Box 800-211 Shanghai 201800 China

The earliest Chinese ancient glasses before the West Han Dynasty (2.0 BC) from different regions are studied. The glass samples were unearthed from Hunan, Hubei, Yunnan, Sichuan, Guizhou, Guangdong and Xinjiang of china. The chemical composition of these glasses samples is analyzed by proton induced X-ray emission (PIXE) technique, energy dispersive X-ray fluorescence (EDXRF) method and inductively coupled plasma atomic emission spectrometry (ICP-AES). It is shown that the glass chemical compositions belong to barium-lead silicate BaO-PbO-SiO2. potash soda lime silicate K2. (Na2.)-CaO-SiO2.(K2./Na2.>1), soda potash lime silicate Na2. (K2.)-CaO-SiO2.(K2./Na2.2.-SiO2.glass systems, respectively. The origins of the earliest Chinese ancient glasses are discussed from the archaeological and historical points of view. These four types of Chinese ancient glasses were all made in Chinese territory using local raw materials. The glass preparation technology was related to the Chinese ancient bronze metallurgy and protoporcelain glaze technology. The glass technology relationship between the East and the West is analyzed at the same time.

关键词： ancient glass glass origin chemical composition analysis.

Crystal and Molecular Structure of Guanidinium Pentamolybdobis (n-amylphosphonate)(CN3H6)4[(n-C5H11P)2.o5O2.]

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Chemical Research in Chinese Universities 1990年第1期6卷 7-13页

作者： Wang Xin (centre of analysis and {2., Lanzhou university, Lanzhou)Liu Benyao and Ku Yihtong(Gu Yidong) (Department of Chemistry, fudan university, shanghai)

The crystal structure of guanidinlum pentamolybdobis(n-ainylphcsphonate), which contains the longest carbon chain hitherto known, was determined by single-crystal X-ray diffraction analysis. It belongs to monoclinic, space group C2.c, Z = 4, 0=18.857(2., b=12.170(1), c=18. 2.4(2. A .β=102.73 (2., V=4095. 2.3.u= 140. 34 cm-1. The intensity data were collected on an Enraf-Nonius CAD4 diffractometer with MoKa radiation. The positions of all molybdenum and phosphorus atoms were determined by the direct method. The other non-hydrogen atoms were revealed by difference Fourier synthesis. The structure was refined by full-matrix least-squares procedure to a final R value of 0. 068. The structure of the anion is similar to [(CH2.)2.o5O2.]4-, [(NH3C2.4P)2.o6O2.]2., [(n-C3H7As)2.o5O2.]--, and [(C3H5As)2.o6O2.]4-. It consists of a ring of five distorted MoO, octahedra joined by edge-sharing, except for one pair which is joined by corner- sharing. The size of the Mo6O16 ring is close to those of [(CH3P)2.o5O2.]4- and [(NH2.2.4P)2.o5O2.]2. and much smaller than those of [(n-C2.7As)2.o5O2.]4-and [(C2.6As)2.o6O2.]4-. The symmetry of the anion, however, to the same at those of its arsenic con-seners [(n- C2.7As )2.o5O2. ]4- and [( C3H5- As )2.o5O2.]4-, but different from those of [(CH3P)2.o5O2.]4-and [(NH3C2.4P)2.o5O2.]2.. The average bond angles O-P-O were estimated on the basis of assuiming that anion [(RP)2.o5O2.4-could be formed.

关键词： Crystal structure Guanidinium pentamolybdobis(z-amylphosphonate) molybdenum

Electronic Structure Calculation for Co_6(μ_6-C)(μ_3-S)_2.CO)_(12. Cluster

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Chinese Chemical Letters 1997年第4期8卷 351-352页

作者： Wen LI Ye LIU Yuan Qi YIN( Lanzhou Institute of Chemical Physics, Academia Sinica)(Research Center of analysis and measurement,{2., shanghai 2.04.3) ACAD SINICA LANZHOU INST CHEM PHYSLANZHOUPEOPLES R CHINA fudan UNIV RES CTR ANAL & MEASUREMENTSHANGHAI 200433PEOPLES R CHINA

The electronic Structure ofCo6(μ_6-C)(μ_3-S)_2.CO)_(12. molecule has been calculated by DV-Xα method. The results show that the reaction mechanism of CS_2.and Co2.CO)8 in synthsis seems only to undergo the additive and decarbonyl processes. The other result worthy of being mentioned is the calculated atonmic charges that are Co0.3+,S1.2.+,μ6-Cl. 16-,C0.06- and O0.2.-.S atom has not only the positive charge but also four times as much as that of Co atom. This is not in accordance with the electronegativihes of 1.7 and 2.5 respectively for Co and S atom

关键词： Co CO Cluster

Mass spectrometry analysis of melanoma related O-glycans in sera

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Science china Chemistry 2010年第4期53卷 807-811页

作者： BAI Chen1,4, WU Gang1 & ZHAO Liang2.3 1Department of Life Science, fudan university, shanghai 2.04.3,{2. 2.epartment of Chemistry, fudan university, shanghai 2.04.3,{2. 3Institutes of Biomedical Sciences, fudan university, shanghai 2.04.3,{2. 4Department of Food Science, shanghai Business School, shanghai 2.02.5,{2. 1. Department of Life Science Fudan University Shanghai 200433 China4. Department of Food Science Shanghai Business School Shanghai 200235 China2. Department of Chemistry Fudan University Shanghai 200433 China3. Institutes of Biomedical Sciences Fudan University Shanghai 200433 China

Glycomics comparison was carried out by screening melanoma serum biomarkers between C57 mice with and without B16 implanted. O-glycans were released from 10 μL sera by β-elimination, purified by Graphitized Carbon Cartridge Solid Phase Extraction (GCC-SPE) and analyzed by MALDI-QIT-TOF-MS. MS raw data were acquired and exported by Launchpad software. MATLAB was then applied for further data analysis. 10 Glycans were considered to have stable changes after B16 implantation and 5 of them were under structural analysis via MS/MS.

关键词： mass spectrometry glycomics melanoma biomarkers

A Modified Binomial Tree Method for Currency Lookback Options

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Acta Mathematica Sinica,English Series 2000年第3期16卷 445-454页

作者： Min Dai Institute of Mathematics,fudan university,{2. 2.04.3,P.R.china Institute of Mathematics Fudan University Shanghai 200433 P. R. China

The binomial tree method is the most popular numerical approach to pricing options. However,for currency lookback options,this method is not consistent with the corresponding continuous models,which leads to slow speed of *** the basis of the PDE approach,we develop a consistent numerical scheme called the modified binomial tree *** possesses one order of accuracy and its efficiency is demonstrated by numerical *** convergence proofs are also produced in terms of numerical analysis and the notion of viscosity solution.

关键词： Modified binomial tree method Currency lookback options Convergence

CRYSTAL STRUCTURES OF COPPER (Ⅱ) AND COBALT (Ⅲ) COM- PLEXES OF o-HYDROXYBENZYLGLYCINATE (HBG)

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Chinese Journal of Structural Chemistry 1991年第1期 1-9页

作者： Chen Ming-QinCenter of analysis and measurement,{2., shanghai. Xu Jun-Xing Zhang Hua-Ling Chemistry Department,fudan university,shanghai.

The structures of two complexes C(CuOC6H4CH2.HCH2.OO)2.(H2.O)]·H2.(1) and [Co(NH3)6[Co(OC6H4CH2.HCH2.OO)2.2.C1]·10H2. (2. were determined by X-ray analyses. Compound (1) crystallizes in the orthorhombic space group P2.2.2. with a=11. 357(1),b= 2.. 304(2.,c=7.317(4) A,Z= 4;While compound (2. in the monoclinic space group A2.a(C2.c) with a=2.. 486(9) ,b=2.. 605(6) ,c= 10. 542.1) A,γ= 12.. 42.4)°,Z= 4. In compound (1),two Cu(Ⅱ) ions are bonded together by the phenolic oxygen atoms of two tridentate chelating ligands and each of them is separately coordinated by the carboxyl oxygen,amino nitrogen of each chelate ligand and by the fifth oxygen atom as well (from aqua or the carbonyl group in adjacent molecule). Thus the coordination of each Cu(Ⅱ) is a square pyramid with distances of 1. 93- 1. 97A to the four corner atoms and 2. 30 and 2. 32.A to the apex atoms. The whole molecule has an approximately planar configuratioir with the two pyramid apexes pointing towards one side. Compound (2. consists of

关键词： Co Zhang AND COBALT CRYSTAL STRUCTURES OF COPPER HBG PLEXES OF o-HYDROXYBENZYLGLYCINATE Cu COM