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Hypersensitivity and its application to structural analysis of lanthanide complexes

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Chinese Journal of Chemistry 1997年第1期15卷 49-53页

作者： Yang, W Chen, M Gao, jz Yang, WD Kang, JW Yang, HW NW NORMAL UNIV DEPT PHYSLANZHOU 730070GANSUPEOPLES R CHINA

Hypersensitivity of the ternary complexes Ln(beta-dik)(4)HMQ(where Ln=Nd, Ho, Er, beta-dik=acetylacetonate(AA), dibenzoylmethanate(DBM) and MQ=4-methylquinoline) in acetone solution is studied based on the dynamic coupling model. The structures of these complexes in solution are deduced. Their coordination polyhedrons are all distorted square antiprism. Neodymium complexes have D-2 symmetry, while holmium and erbium complexes have exact D-2d symmetry.

关键词： hypersensitivity structural analysis lanthanide ternary complexes

Measurement and Calculation of Quenching Rate Constants for PCl(b)

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Chinese Chemical Letters 1996年第12期7卷 1125-1126页

作者： Zou, SL Liu, CP Guo, jz Gu, YS Chu, YN Cao, DZ SHANDONG UNIV DEPT CHEMJINAN 250100PEOPLES R CHINA ACAD SINICA ANHUI INST OPT & FINE MECHLASER SPECT LABHEFEI 230031PEOPLES R CHINA

Using the Ar(P-3(0.2)) +PCl3 reaction as a source of PCl(b(1) Sigma(+)). We have measured the quenching rate constants of PCl(b) for 23 reagents. The E -V model is used to calculate the rate constants. The comparison ... 详细信息

关键词： SMALL POLYATOMIC-MOLECULES COLLISIONAL DEACTIVATION

TWO NEW TAXOIDS FROM THE NEEDLES OF TAXUS WALLICHIANA ZUCC

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Chinese Chemical Letters 1995年第11期6卷 967-970页

作者： Zhang, jz Fang, QC Liang, XT Kong, M He, WY Chinese Acad Med Sci Inst Mat Med Beijing 100050 Peoples R China Beijing Union Med Coll Beijing 100050 Peoples R China

Two new taxoids, named taxawallin A(1)and taxawallin G(2) were isolated from the needles of Taxus wallichiana Zucc.. Their structures were established by spectral methods.

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FOUR NEW TAXOIDS FROM THE NEEDLES OF TAXUS WALLICHIANA ZUCC

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Chinese Chemical Letters 1995年第11期6卷 971-974页

作者： Zhang, jz Fang, QC Liang, XT Kong, M He, WY Chinese Acad Med Sci Inst Mat Med Beijing 100050 Peoples R China Beijing Union Med Coll Beijing 100050 Peoples R China

Four new taxoids with rearranged taxane skeleton,named taxawallins C(1),D(2), F(3)and H(4),were isolated from the needles of Taxus wallichiana Zucc.. Their structures were elucidated by spectroscopic techniques.

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Cloning and sequence analysis of human genomic DNA of augmenter of liver regeneration

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World Journal of Gastroenterology 2000年第2期6卷 275-277页

作者： Cheng J Zhong YW Liu Y Dong J Yang jz Chen JM 302 Hosp PLA Gene Therapy Res Ctr Inst Infect Dis Beijing 100039 Peoples R China

INTRODUCTIONThe liver is one of the organs,which have potentialregenerative capability in mammalian *** study of the canine model indicated that theliver could regenerate to original size after 70%hepatectomy in only ... 详细信息

关键词： augmenter liver regeneration cloning genomic DNA intron exon

Preliminary study on light hydrocarbons in ore-forming fluids of gold and antimony deposits in southwestern Guizhou, China

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维普期刊数据库

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Chinese Science Bulletin 1997年第20期42卷 1708-1711页

作者： Zhuang, HP Lu, JL Fu, JM Liu, jz Shi, JX Chinese Acad Sci Guangzhou Inst Geochem Guangzhou 510640 Peoples R China

METAL minerals precipitate generally from ore-forming fluid. It is suggested that organic mat-ter in ore-forming fluid is one of the best media which show the role of organic matter in oregenesis. Because mineralizing temperatures of many ore deposits exceeded the stable rangesof liquid hydrocarbons, only light hydrocarbons were preserved well in inclusions. Thus,

关键词： southwestern Guizhou gold and antimony deposits light hydrocarbon.

SYNTHESIS OF MESOPOROUS CHROMIUM SILICATE

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Chinese Chemical Letters 1995年第12期6卷 1091-1094页

作者： Yuan, ZY Chen, TH Wang, jz Li, HX Liu, SQ Nankai Univ Dept Chem Catalysis Lab Tianjin 300071 Peoples R China Nankai Univ Catalyst Plant Tianjin 300071 Peoples R China

A mesoporous chromium silicate molecular sieve with MCM-41 structure has beers prepared by direct hydrothermal synthesis; XRD; framework IR, ESR and DR-UV spectroscopies provided evidence of the presence of framework ...

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Synthesis and characteristics of nitric oxide spin probes

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Chinese Science Bulletin 1997年第20期42卷 1693-1699页

作者： Zhao, HT Liu, L Zhang, jz Cong, JB Wu, K Sun, CP Univ Sci & Technol China Grad Sch Dept Chem Beijing 100039 Peoples R China

NITRIC oxide (NO) is the important cell messenger molecule that regulates the central ner-vous, cardiovascular, endocrine and immunity systems. The study of NO not only canexplain many physiological phenomena, but also can provide new ways to prevent and treat alot of diseases. However, at present, most of the methods for assaying NO produced by or-ganism have some defects, for example, low sensitivity, no specificity, no convenience.

关键词： imidazole analogs nitrozide radical NO spin probe ESR.

TRH microinjection into DVC enhances motility of rabbits gallbladder via vagus nerve

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World Journal of Gastroenterology 1998年第2期4卷 70-72页

作者： Liu, CY Liu, jz Zhou, JH Wang, HR Li, ZY Li, AJ Liu, KJ Shandong Univ Dept Physiol Jinan 250012 Shandong Peoples R China

AIM To investigate the effects of TRH in DVC on motility of the gallbladder in rabbits. METHODS After fasted for 15h - 18h , rabbits were anesthetized with urethane (1 0g/kg) . Gallbladder pressure (GP) was measured by a frog bladder perfused with normal saline. RESULTS After microinjection of TRH (8 8nmol, 1μl ) into DVC, GP was raised and the frequency of phasic contraction of gallbladder (FPCGB) increased. All the doses of TRH (0 13, 0 25, 0 50, 0 80, 1 30nmol , 1μl ) injected into DVC could excite the motility of gallblader. As the dose of TRH was enlarged, the amplitude and duration of the reaction increased. Effects of TRH in DVC on motility of the gallbladder could be completely abolished by atropine ( 0 2mg/g , i.v.) or vagotomy, but could not be inhibited by phentolamine iv (1 5mg/g) or propranolol iv (1.5mg/g) or by transecting the spinal cord. CONCLUSION Thyrotropin releasing hormone in DVC can excite motility of gallbladder. This effect was mediated by vagus nerves and peripheral M receptor. Its physiological significance may be related to maintaining the phasic contraction of gallbladder in interdigestive period.

关键词： gallbladder vagus nerve dorsal vagal complex thyrotropin releasing hormone cholinergic M receptors rabbits