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EPOXIDATION　OF　OLEFINS　WITH　IODOSYLBENZENE　CATALYZED　BY　POLYMER－SUPPORTED　MANGANESE　PORPHYRINS

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Chinese Chemical Letters 1996年第4期7卷 329-332页

作者： You, JS Yu, xq Xiao, YF Wu, YL Lan, ZW SICHUAN UNIV DEPT CHEMCHENGDU 610064PEOPLES R CHINA

Polymer- bound manganese (Ⅲ) porphyrins are effective catalysts for the epoxidation of olefins by iedosylbenzene.

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Synthesis of Novel Lipids Bearing Cholesteryl Group as Gene Vectors

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Chinese Chemical Letters 2000年第7期11卷 577-580页

作者： Zhu, MZ Wu, QH Wei, JN Zheng, xq Guo, QX Univ Sci & Technol China Dept Chem Hefei 230026 Peoples R China

Some cationic and neutral lipids bearing cholesteryl group were synthesized as gene vectors, and the structures of the compounds were characterized by IR, (HNMR)-H-1, MS and elemental analysis.

关键词： cholesteryl derivatives gene vector lipid

Characteristics of atmospheric oscillation in the Prydz Bay region during the ozone hole period in 1993

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Chinese Science Bulletin 1997年第10期42卷 842-845页

作者： Lu, LH Zhou, XJ Bian, LG Zhang, xq Zheng, XD Chinese Academy of Meteorological Sciences Beijing China

IN ref.[1],a preliminary analysis was reported on the change characteristics of total ozoneduring the Antarctic'ozone hole'period in 1993,revealing that there is a very obvious dailychange of total ozone over Zhongshan Station and suggesting that this change would be relatedto the position of Zhongshan Station on the rim of the ozone hole influenced by the polar vortexvacillation and the expanding and contracting processes in Antarctic *** this note,

关键词： Antarctic Prvdz Bay ozone hole atmospheric oscillation.

SYNTHESIS AND CRYSTAL STRUCTURE OF THE CLUSTER COMPOUND MoS_4Cu_2Ag(Ph_3P)_3Br.H_2O

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Chinese Chemical Letters 1995年第3期6卷 263-264页

作者： Long, DL Xin, xq Huang, XY Cai, JH Kang, BS Nanjing Univ State Key Lab Coordinat Chem Nanjing 210093 Peoples R China Chinese Acad Sci Fujian Inst Res Struct Matter State Key Lab Struct Chem Fuzhou 350002 Peoples R China

MoS4Cu2Ag(Ph3P)3Br.H2O, fw = 1344, triclinic, space group P1 : a= 13.246(4),b = 20.314(6), c = 11 .995(4)A, α= 93.25(3)° β= 115.99(2)° γ = 74.44(3)° V= 2788.(2)A 3.Z= 2, Dc = 1 .60g cm-3, F(000)= 1340, μc=22.87cm-1, R = 0.060, Rw = 0.067. This is the first example or tetranuclear M-Mo-S cluster containing Cu and Ag together and the structure is a completed cubane that the Br atom bonds to Cu and Ag.

关键词： MoS4Cu2Ag COMPOUND CLUSTER Br Ph3P Cu

CRYSTAL STRUCTURE OF (Et_4N)_2Pd(i-MNT)_2AND ITS REACTION WITH (Et_4N)_2WS_4(i-MNT=S_2CC(CN)_2￣2-)

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Chinese Chemical Letters 1995年第10期6卷 899-902页

作者： Long, DL Xin, xq Luo, BS Chen, LR Yu, KB Nanjing Univ State Key Lab Coordinat Chem Nanjing 210093 Peoples R China Wuhan Univ Anal & Testing Ctr Wuhan 430072 Peoples R China Acad Sinica Chengdu Ctr Anal & Determinat Chengdu 610041 Peoples R China

Et4N)2pd(i-mnt)*** = 647. 04, monoclinic,space group P21/c;a =9.511(1), b = 11.612(2), c=14.820(3)A,g= 94.38(1)',I'= 1631.9(5)A;7=2' D.=***-;F (000)=672, R=0 0324, R. = 0'*** is a new e,\alil[)le ot' X-raycharacterized Pd colllplexes with bivalent anion l,1 -dithiolato ligands an(i IIis reactioll witll(Et'N)zWS# gives (Et4N)ZWS4Pd(i-1lint).

关键词： MNT S2CC AND CRYSTAL Et4N OF REACTION STRUCTURE WITH Pd WS CN ITS

Vitrificational cryopreservation and subsequently fertile plant regeneration from rice (Oryza sativa L.) embryogenic suspension cells

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Chinese Science Bulletin 1997年第5期42卷 422-426页

作者： Wang, JH Zheng, Y Yan, QF Yan, QS Zhang, xq Huang, CN College of Life Science Hangzhou University Hangzhou China China National Rice Research Institute Hangzhou China

CRYOPRESERVATION by vitrification is a new ultralow-temperature-storage technique developed in the 1980s. Operationally, procedures for vitrification of biological specimens consist of the following basic steps: treatment of the samples in a highly concentrated vitrification solution and then plunging the specimens into liquid nitrogen. The word 'vitrification' is sometimes used to describe the high moisture of the in vitro cultures or regenerants. However, in this note, this word means a biophysical process in which the cells and the solution are transformed into a homogeneous and amorphous state. The water in cells does not change into ice, but in

关键词： rice embryogenic suspension cells vitrification cryopreservation plant regeneration.

Influence of peptide bond on photosensitized oxidation of tryptophan, tyrosine and histidine dipeptides

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Chinese Science Bulletin 1997年第19期42卷 1624-1628页

作者： Liu, JB Zhang, FS Zhao, Y Zhao, FQ Tang, YW Song, xq TSING HUA UNIV DEPT CHEMBEIJING 100084PEOPLES R CHINA

IN photodynamic therapy, the damage of protein results from the photooxidation of one ormore of only five amino acid residues (tryptophanyl, tyrosyl, histidyl, methionyl and cys-teinyl). These five amino acids are also readily photooxidized in their monomeric states. How-ever, the reaction kinetics and mechanisms of free amino acids and bound amino acid residuesin proteins are somewhat different. For example, Tassin found that the incorporation of tryp-tophan into a peptide linkage dramatically altered its susceptibility to photooxidation as well

关键词： amino acid dipeptide photosensitized oxidation.

DEVELOPMENT OF HF MAGNETIC-FIELD STANDARD

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DEVELOPMENT OF HF MAGNETIC-FIELD STANDARD

SYNTHESIS　AND　ANTI－HUMAN　IMMUNODEFICIENCY　VIRUS－1（HIV－1）　ACTIVITY　OF　9－（2－PHOSPHONYLMETHOXYETHYL）ADENINE　（1）AND　ITS　REGIOISOMER　3－（2－PHOSPHONYLMETHOXYETHYL）ADENINE（2）

INTERNATIONAL SYMP ON ELECTROMAGNETIC COMPATIBILITY ( EMC 92 )

作者： YANG, SX WU, F MA, xq GAO, QL National Institute of Metrology

ISBN: (纸本)7800031926

This paper reports on the HF magnetic field standard of *** was completed recently using the stnadard magnetic field method and standard loop antenna method. A standard testloop antenna 100mm in diameter transmits HF magnetic field to be received by another standard loop antenna 300mm in *** frequency range is 10kHz-30MHz,the transmitting field strength is 1 mV/m-100mV/m and the uncertainty is *** using the standard magnetic field method and the standard loop antenna method are consistent within 0.45dB. Setup using the standard loop antenna method and that using a TEM cell of 3.6m x1.8m x 1.8m coincide within 0.5dB.

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Chinese Chemical Letters 1995年第8期6卷 669-672页

作者： Liu, XH Wang, L Guan, BH Kong, M Zhang, xq Tao, PZ Chen, HS Chinese Acad Med Sci Inst Mat Med Beijing 100050 Peoples R China Beijing Union Med Coll Beijing 100050 Peoples R China Chinese Acad Med Sci Inst Med Biotechnol Beijing 100050 Peoples R China

We have synthesized the title compounds(1)and(2).The structure of regioisomer(4).a new acyclic nucleotide,was determined by spectroscopic methods (1H-NMR.13C-NMR.13C-1H HMBC).A by-product(7)was also isolated and ident...

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