丁基

In this complex, two pseudo-octahedrally coordinated Fe ions were bridged by a phenolate group and two bidentate acetate ligands.

与以往的模型体系[Fe22]·(BPh4)2相比，新模型增加了2个酚配体、2个叔丁基。

Phase transfer catalyst;Third liquid phase;Solvent effect;Sodium phenolate;Tetrabutylammonium bromide;Butyl bromide

中文关键字相转移触媒；第三液相；溶剂效应；酚化钠；溴化四丁基铵；正溴丁烷

The effects of solvents and salts on the formation of a third liquid phase, distribution of catalyst, reaction mechanism and reaction rate in the reaction between n-butyl bromide and sodium phenolate with tetrabutylammonium bromide as a phase transfer catalyst were investigated.

中文摘要本文系针对以溴化四丁基铵为相间转移触媒催化正溴丁烷与酚化钠之反应，研究溶剂种类及盐类与碱类之添加量对形成第三液相、触媒分布、反应机构及反应速率之影响，被测试之溶剂包括氯苯、甲苯与正己烷，而在盐类与碱类效应的研究中，则测试溴化钠与氢氧化钠。

A series of novel dicationic symmetrical and asymmetrical ionic liquids based on tributylalkyl phosphonium and alkylimidazolium were synthesized.

合成了一系列含有三丁基烷基膦盐和烷基咪唑盐的对称的和不对称的双离子液体。

A series of Sn/C composites was prepared by thermal condensation of coal tar pitch and tributyltin chloride with different proportions.

以煤焦油沥青为碳源、三丁基氯化锡为锡源，采用压力下聚合手段原位合成出Sn/C复合材料，并对它的电化学性能进行了研究。

Pd could be quantificationally separated from Sb, Zrand Ce by flotation when the concentrations of potassium bromide and tetrabutyl ammonium bromide in solution were 1.5×10^(-2) molL^(-1) and 2.0×10^(-3) molL^(-1), respectively. The method was used for the separation and determination of Pdin the sample of synthetic water with satisfactory results.

当溶液中嗅化钾和四丁基溴化铵的浓度分别为1.5×10^(-2)molL^(-1)和2.0×10^(-3)molL^(-1)时，钯被定量浮选，实现了钯与锑、锆、和铈离子的定量分离，对合成水样中的钯进行定量浮选分离测定，结果满意。

Pd combined with tetrabutyl ammonium bromide and potassium bromide into a ternary ion association precipitate in the aqueous solution. The precipitate was floated well on the surface of water phase to make a distinct boundary layer between liquid and solid phases.

在水溶液中，钯与溴化钾和四丁基溴化铵形成不溶于水的三元离子缔合物，此三元离子缔合物浮于盐水相上层形成界面清晰的液－固两相。

Based on the experimental results,di-butyl-peroxide,di-cyclopentadiene and propyl nitrate are found to be sensitive to the change of heating temperature and heating time,and their thermal decomposed products can be detected easily.

实验表明，在343～473 K温度范围内，过氧化二叔丁基、双环戊二烯和硝酸丙酯对受热温度和受热时间的变化较为敏感，热分解现象明显，热分解产物易于检测。

Tert-butyl- pyrocatechol is one of important organic substance.

对国内外对叔丁基邻苯二酚的合成工艺及其最新的研究进展进行了介绍。

The photocatalytic activity of AgBr/TiO2 for degradation of methyl orange and butyl rhodamine B was studied under visible light irradiation.

研究了AgBr/TiO2在可见光下对甲基橙和丁基罗丹明B的光催化活性。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。