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SYNTHESIS OF 1,6-DIEPI-DIHYDROARTEANNUIC ACID

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Chinese Chemical Letters 1990年第1期1卷 65-68页

作者： Bin YE Jin Li ZHANG shanghai institute of Organic chemistry,Academia Sinica,shanghai,200032Ming Qing CHEN Research center of analysis and measurement,fudan universityYu Lin WU

R(+)-Citronellal was converted into a key intermediate, (unsaturated ketone 5)in three steps,which led to 6 having the frame of arteannuic acid through intramolecular ene *** modification of 6 afforded 1,6-epimer of d... 详细信息

关键词： acid

CRYSTAL STRUCTURE OF UO2（PMBP）2（H2O） THF

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结构化学 1986年第3期 166-171页

作者： Wang Ming Zheng Peiju Xu jun Li Xingfu Yu Zhihui center of analysis and measurement, fudan university, shanghai chemistry Department, Zhejiang university, Hangzhou Application Department, The institute of High Energy Physics, Academia Sinica, Beijing

C34H28N407U·C4H4O Mr=910.7, monoclinic, Cc, a=12.999(1), b=15.448(2), c=18.481(2) A, β=100.18(2)°, Z=4, DC=1.656 g/cm-3, V=3652.3 A3, final R = 0.035 for 3457 observable reflections. Uranyl ion is coordinated equa... 详细信息

关键词： monoclinic coordinated distorted observable pyramid chelate jugate unsaturated rings 七八

Bacterial Type Ⅰ Glutamine Synthetase of the Rifamycin SV Producing Actinomycete,Amycolatopsis mediterranei U32,is the Only Enzyme Responsible for Glutamine Synthesis under Physiological Conditions

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Acta Biochimica et Biophysica Sinica 2006年第12期 821-830页

作者： Wen-Tao PENG~(1&) Jin WANG~1 Ting WU~2 Jian-Qiang HUANG~1 Jui-Shen CHIAO~1 Guo-Ping ZHAO~(1,3,4) 1 Laboratory of Molecular Microbiology,institute of Plant Physiology and Ecology,shanghai institutes for Biological Sciences,Chinese Academy of Sciences,shanghai 200032,China 2 Department of Medicinal chemistry,School of Pharmacy,fudan university,shanghai 200032,China 3 State Key Laboratory of Genetic Engineering/Department of Microbiology,School of Life Science,fudan university,shanghai 200433,China 4 Laboratory of Health and Disease Genomics,Chinese National Haman Genome center at shanghai,shanghai 201203,China

The structural gene for glutamine synthetase,glnA,from Amycolatopsis mediterranei U32 wascloned via screening a genomic library using the analog gene from Streptomyces *** clone wasfunctionally verified by complementing for glutamine requirement of an Escherichia coli glnA null mutantunder the control of a lac *** analysis showed an open reading frame encoding a protein of466 amino acid *** deduced amino acid sequence bears significant homologies to other bacterialtype Ⅰ glutamine synthetases,specifically,71% and 72% identical to the enzymes of *** and Myco-bacterium tuberculosis,*** of this glnA gene in *** U32 led to glutamineauxotrophy with no detectable glutamine synthetase activity in *** contrast,the cloned glnA+gene cancomplement for both phenotypes in *** thus suggested that in *** U32,the glnA geneencoding glutamine synthetase is uniquely responsible for in vivo glutamine synthesis under our laboratorydefined physiological conditions.

关键词： glnA glutamine synthetase Amycolatopsis mediterranei rifamycin SV

ENDOR AND ESR STUDIES OF RADICALS FORMED IN FRIEDEL-CRAFTS REACTIONS

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Science China chemistry 1991年第11期34卷 1296-1303页

作者：桑鸿汪汉卿陈涛刘旭勤center of analysis and Research East China university of Chemical Technology shanghai 200237 PRC Lanzhou institute of Chemical Physics Academia Sinica Lanzhou 730000 PRC center of analysis and Research East China University of Chemical Technology

The present study deals with the study of some Friedel-Crafts alkylating system and the accurate measurement of hyperfine coupling constants by ESR and ENDOR techniques. The results indicate that the observed ESR spectra are due to polycyclic aromatic radical cations formed from their parent *** is suggested that benzyl halides produced in the Friedel-Crafts alkylating reaction undergo Scholl condensation reaction to give polycyclic aromatic hydrocarbons, which were converted into the corresponding polycyclic aromatic radical cations in the presence of aluminum chloride.

关键词： radical cations ESR ENDOR Friedel-Crafts reactions.

[Pt(TMCPDA)(Ac-Cl)_2]的分子结构和晶体结构

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无机化学学报 1989年第4期5卷 1-5页

作者：曲筠唐雯霞戴安邦汪明王博义郑培菊南京大学配位化学研究所复旦大学分析测试中心

[Pt(TMCPDA)(Ac-Cl)_2]属四方晶系,空间群为P4_32,2,单胞参数为:a=b=14.618(4),c=16.654(2)A,V=3558.9A^3,Z=8,D_c=1.957gcm^(-3).在Enraf-Nonius CAD4衍射仪上用MoK,射线,收集了0(?)2θ(?)44°的独立衍射点2184个。铂原子坐标用直接法解法。非氢原子和部分氢原子的坐标用数轮差富利叶合成得到。部分氢原子坐标用理论计算定出。铂原子各向异性热振动参数和其他原子的各向同性热参数经全矩阵最小二乘法修正。最后偏离因子R=0.065,R_w=0.077.分子的绝对构型已测定,不对称碳原子为1s,3R.

关键词：铂配合物分子结构晶体结构

链状三核钼(钨)硫原子簇化合物[M_3O_2S_8]^(2-)的合成、光谱和晶体结构

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化学学报 1989年第6期47卷 535-542页

作者：金国新忻新泉戴安邦吴建华王博义郑培菊 Pope M.T. 南京大学配位化学研究所复旦大学分析测试中心乔治城大学化学系

本文以[NH_4]_2MO_nS_(4-n)(M=Mo、W,n=0-2)为原料,在酸性和中性条件下,合成出九个新的三核不对称钼硫和钨硫原子簇状化合物L_2[M_3O_2S_8][L=(n-Bu)_4N、Ph_4P、PyC_(16)H_(33)、(CH_3)_3NC_(16)H_(33)、Et_4N]。用元素分析、红外光谱、紫外光谱对簇合物进行了表征,并测定了其中 [(n-Bu)_4N]_2[Mo_3O_2S_8](1)和[(n-Bu)_4N]_2[W_3O_2S_8](5)两个簇合物的晶体结构,簇合物1和5均属单斜晶系,P2_1/c空间群,簇合物1的晶胞参数:a=15.910(2),b=15.411(1),c=20.407(5)A,β=103.40°(1),V=4867.5A^3,Z=4,最终偏离因子R=0.060。簇合物5的晶胞参数。a=15.896(4),b=15.674(2),c=20.409(9)A,β=103.43°(3),V=4946.5A^3,Z=4,最终偏离因子为R=0.051。本文又一次验证了钼(钨)硫成簇反应是分子内部电子转移反应,并提出了可能的成簇反应历程。

关键词：固氮酶模拟酶链状三核钼硫原子簇化合物链状三核钨硫原子簇化合物合成光谱结构

CRYSTAL STRUCTURE OF UO2 （PMBP）2 （TBPO）（HPMBP=1-Phenyl-3-Methyl-4-Benzoylpyrazolone-5,TBPO=Bu4PO）

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结构化学 1989年第3期 173-176页

作者： Wang Ming Zheng Pei-Ju Xu jun Lin Xing-Fu Yu Zhi-HuiResearch center of analysis and measurement, fudan university, shanghaichemistry Department,Zhejiang university,HangzhouApplication Department,The institute of High Energy Physics, Acadenaa Sinica, Beijing

C46H44N4O7PU, Mr = 1033. 89, monoclinic space group C2/c,a= 24. 110(3),b= 16. 879(2),c=27. 751(4) A ,B=96. 69(1),V= 11216. 5A3,Z=8, Dc=1.224 gcm-2, (MoKa) = 0. 71073A,u= 28.123cm-1,F(000) = 511, final R = 0. 052 for 3806 observable reflections. The uranyl ion UO|+ in the title complex forms a distorted pentagonal bipyramidal geometry with five oxygen atoms in the equatorial plane from two PMBP and one TBPO groups.

关键词： PMBP CRYSTAL STRUCTURE OF UO2 TBPO

硫氰酸铀酰(18-冠-6)铵(或钾)配合物的合成、特性和结构

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化学学报 1989年第6期47卷 548-556页

作者：张静智陈忠杨永会汪明郑培菊山东大学化学系复旦大学分析测试中心

本文报道了硫氰酸铀酰(18-冠-6)铵和硫氰酸铀酰(18-冠-6)钾两种固体配合物的合成。由测定其物理常数及谱学数据,确定了配合物的组成为[(C_(12)H_(24)O_6)M]_2UO_2(NCS)_4H_2O(M=NH_4,K)。X射线结构分析确定了两种单晶的结构。铵配合物... 详细信息

本文报道了硫氰酸铀酰(18-冠-6)铵和硫氰酸铀酰(18-冠-6)钾两种固体配合物的合成。由测定其物理常数及谱学数据,确定了配合物的组成为[(C_(12)H_(24)O_6)M]_2UO_2(NCS)_4H_2O(M=NH_4,K)。X射线结构分析确定了两种单晶的结构。铵配合物属正交晶系,空间群为Fdd2,钾配合物属单斜晶系,空间群为C2/c。

关键词：硫氰酸铀酰(18-冠-6)铵铀酰离子硫氰酸铀酰(18-冠-6)钾醚配合物合成结构

Studies on organo-phosphorus, -arsenic and -antimony polytungstates and polymolybdates——II. Degradation method for preparing arylarsenic polytungstates

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Acta Chimica Sinica English Edition 1989年第5期7卷 152-,158页

作者： LIU Ben-Yao GU Yi-dong (Yih-Tong KU) Department of chemistry Fudan UniversityShanghai WANG XinCenter of Analysis and MeasurementLanzhou University

Six guanidinium salts of arylarsenic po1ytungstates have been prepared by the 'degradation method' using sodium metatungstate as a starting material instead of sodium tungstate, They belong to three types of complexes: [(RAs)_2W_6O_(25)H]^(5-) where R=C_6H_5(1),o-NO_2C_6H_4(2),m-NO_2C_6H_4(3), p-NO_2C_6H_4(4),[(RAs)_2W_6O_(25)]^(4-) where R=p-NH_2C_6H_4(5), and[(RAs)_2W_6O(25)]^(6-)where R=3,4,-C_6H_3 (NO_2)(OH)(6). Complex 1 is a known compound, prepared by the acidification building up method, i.e. conversion of sodium tungstate to polytungstate. Complex 1 and 6 prepared by the degradation method, i.e. from sodium metatungstate to lower polytungstate, are briefly reported in our previous re- port of this investigation. Complexes 2-5 are new compounds. Molecular structures of complexes 5 and 6 have been determined by means of single-crystal X-ray diffraction studies. It is especially em- phasized that the degradation method starting with metatungstate has the advantage in the simplification of reaction products. thus leading to their higher yields.

关键词： Degradation method for preparing arylarsenic polytungstates Studies on organo-phosphorus antimony polytungstates and polymolybdates arsenic and II