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检索条件"主题词=Trigonal"
15 条 记 录,以下是11-20 订阅
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THE CRYSTAL STRUCTURE OF CARBOCERNAITE
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Chinese Science Bulletin 1982年 第1期27卷 76-80页
作者: 施倪承 马喆生 彭志忠 The X-ray Laboratory of Beijing Graduate School of Wuhan Geological College
The carbocernaite was first found in USSR by A. et al. Except its space group, the formula (Ce, Na, Sr, Ca)CO3, the lattice parameters (a=5.21, b=7.28, c=6.40) and the orthorhomic system were all given. In China L... 详细信息
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论
CLUSTER RESEARCH ON ACTIVATION OF CO BY CHARGED PLATINUM
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Chinese Science Bulletin 1986年 第1期31卷 34-36页
作者: 郭跃进 唐敖庆 Institute of Theoretical Chemistry Jilin University Changchun Institute of Theoretical Chemistry Jilin University Changchunn transition metal catalysis the relation between the property of a charged metal and the activation of the molecules has aroused the attention of chemists. In this article by using synthesized platinum carbonyl clusters which act as catalytic model the EHMO calculation has been performed to explore the activation mechanism of CO molecule.
In transition metal catalysis, the relation between the property of a charged metal and the activation of the molecules has aroused the attention of chemists. In this article, by using synthesized platinum carbonyl cl... 详细信息
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论
CRYSTALLIZATION OF R-PHYCOERYTHRIN FOR X-RAY DIFFRACTION STUDIES
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Chinese Science Bulletin 1987年 第24期32卷 1718-1719页
作者: 梁丽 梁树坚 练永宁 杨苍珍 马金石 蒋丽金 Institute of Biophysics Academia Sinica Beijing Institute of Photographic Chemistry Academia Sinica Beijing
Phycoerythrin is one class of the photosynthetic accessory pigments in rokaryotic cyanobacteria (blue-green aloe) and eukaryotic rhodophyta (red algae). It plays a very important role in oxysenic photosynthesis. A det... 详细信息
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SYNTHESIS AND CRYSTAL STRUCTURE OF COMPLEX OF Er(Ⅲ) WITH BENZENE-1, 2, 4, 5-TETRACARBOXYLIC ACID
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Chinese Science Bulletin 1987年 第3期32卷 212-页
作者: 邢彦 金钟声 段治邦 倪嘉缵 Changchun Institute of Applied Chemistry Academia Sinica Changchun Institute of Applied Chemistry
We have first synthesized [NH4]+[ErC6H2(COO)43H2O]-. 4H2O and determined its structure. The crystal is monoclinic, space group P21/n, with Z=4. Lattice parameters are: α= 10.330(4), b=10.282(5), c=16.446(8)(... 详细信息
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论
THE CRYSTAL STRUCTURE OF 1-CYANOPROPYL SILATRANE
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Chinese Science Bulletin 1982年 第8期27卷 910-页
作者: 王守道 胡宁海 Institute of Chemistry Academia Simica Beijing Changchun Institute of Applied Chemistry
The crystal structure of 1-cyanopropyl silatrane, has been determined by the X-ray direct method using (GC-79) (ALGOL 60) program system proposed by the present authors.
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论