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- Preparation of unsymmetrical selenides via the reaction of arylselenol with alkyl halides needs at least equal molar cesium hydroxide as the base. 通过卤代烃与硒酚反应合成了不对称硒醚,至少要使用等摩尔的氢氧化铯作碱,与氢氧化钾相比,氯化铯价格昂贵。
- unsymmetrical selenides 不对称硒醚
- unsymmetrical selenide 不对称硒醚
- Many sulphides, selenides, and telluides have the nickel arsenide, NiAs, type of structure. 许多硫化物、硒化物和碲化物具有砷化??iAs型的结构。
- Many sulphides, selenides, and tellurides have the nickel arsenide's NiAs type of structure. 许多硫化物,硒化物和碲化物具有砷化镍NiAs型的结构。
- AllyI selenides were synthesized via reactions of alIyl ytterbium bromide with diselenides. 4. 三、研究了用烯丙基溴化镱与二硒醚反应合成烯丙基硒醚;
- The unsymmetrical arrangement of shear walls in the building cause the diaphrams to rotate and translate. 建筑物内剪力墙的非对称布置引起了楼板转动和平动。
- The unsymmetrical arrangement of shear walls in the building cause the diaphragms to rotate and translate. 建筑物内剪力墙的非对称布置引起了楼板转动和平动。
- A case study for Nanning Bridge, the first long span unsymmetrical extroversion arch bridge with curve beam in the world is given. 利用几何方法推导了空间钢箱拱肋节段拼装误差在拱肋最大悬臂端的累积规律。
- Adsorption and decomposition of unsymmetrical dimethyl hydrazine (UDMH) in red soil and yellow-brown soil are performed in the present study. 对偏二甲肼在红壤土和黄棕壤土中的吸附及降解进行了研究。
- Alkyl balides react with sodium borohydride and selenium in the presence of solid sodium hydroxide to give dialkyl selenides in excellent yields. 在固体氢氧化钠存在下,卤代烃及用氢化钠与硒粉作用,在乙醇溶液中制得二烃基硒醚。
- Preparation and Application of Unsymmetrical Ceramic Microporous Membrane Modified by the Growth of NaA Zeolite. 专利:一种沸石生长调控大孔载体制备微滤或超滤复合膜的方法。
- The secondary native selenium was discovered in the Yutangba Se deposit,western Hubei Province,China,which is one of rare selenides in the world. 在湖北渔塘坝硒矿床氧化矿石及地表松散堆积物中存在大量罕见的次生自然硒。
- A 4-inch prototypical unsymmetrical SMPDP was fabricated and its discharge performance was studied. 通过对4"实验板的制作、测试和分析,研究了不对称SMPDP的放电性能。
- In case of the discharge lamps some triphase symmetrical circuit and varied unsymmetrical circuit are studied. 本文分析了大量采用气体放电灯照明时,三相对称电路和多种典型的不对称电路。
- Simulation results show that the strategy can be adapted to unsymmetrical transmission to a certain extent. 仿真结果表明,该分配算法对非对称业务传输具有一定的适应性。
- It is easily collapsed for shallow and unsymmetrical large-span tunnel near portal in soft rock. 软岩地区浅埋偏压大跨度隧道进口段极易塌方。
- Owing to information unsymmetrical, there is seriously incentive - incompatibility in our banking regulation. 究其原因,我国银行业监管目前存在着严重的激励不相容。
- An analytical formula of calculating residual_stress in laminates with unsymmetrical structure was presented. 基于非均匀应变模型,给出了非对称型层合材料由层间约束引起的层内残余应力的解析表达式。
- A novel type of unsymmetrical shadow mask plasma display panel (SMPDP) has been successfully developed. 摘要本文讨论了一种新颖的不对称荫罩式等离子体显示板。