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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

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

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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.

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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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.

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三宅一生:创新、探索与颠覆

品质 2022年第9期 30-32页

作者： jz 磨盘(图) 不详

《读卖新闻》报道,日本设计师三宅一生于8月5日在东京因癌症去世,享年84岁。这位曾经被誉为“时尚界毕加索”的设计师与世长辞,但他对时尚和美学的探索、对技术与材料的痴迷,仍在设计和时尚领域,产生着重要的影响。

关键词：三宅一生《读卖新闻》时尚界毕加索设计师

帝斯曼与芬美意合并成全球香精香料第一大企业

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品质 2022年第7期 90-91页

作者： jz 知行(图) 不详

1、据CNBC报道,5月31日,荷兰特种化学品制造商帝斯曼(DSM)与瑞士香料供应商芬美意(Firmenich)发布消息称,两家公司将合并为一家新公司--帝斯曼-芬美意(DSM-Firmenich)。按照当前两家公司合计销售额约836亿元,新公司将成为全球香精香料... 详细信息

1、据CNBC报道,5月31日,荷兰特种化学品制造商帝斯曼(DSM)与瑞士香料供应商芬美意(Firmenich)发布消息称,两家公司将合并为一家新公司--帝斯曼-芬美意(DSM-Firmenich)。按照当前两家公司合计销售额约836亿元,新公司将成为全球香精香料的第一企业,这也将是今年来化妆品原料领域最大合并案。

关键词：合并案香精香料特种化学品化妆品原料帝斯曼供应商 DSM 制造商