三

Triphenylamine and their derivatives are excellent optical materials,and TPA is chosen as the basic framework for the design and synthesis of a series of TPA-based dyes.

三苯胺(Triphenylamine，TPA)及其衍生物是一类性能优良的光电材料，本论文即是选用三苯胺为基本骨架，通过简单的有机反应，设计和合成一系列三苯胺类有机敏化剂。

Methoxytriphenylamine and 4,4′-di methoxy -triphenylamine with good solubility in common organic solvents were synthesized by Ullmann reaction.

通过Ullmann反应合成了4-甲氧基三苯胺和4，4′-二甲氧基三苯胺两种具有良好溶解性的甲氧基取代三苯胺，通过FTIR、1H NMR和元素分析等手段对其进行了表征，并采用循环伏安结合UV-Vis吸收光谱测试了其能级结构。

A series of lanthanide complexes (Ln = Er, Nd, Yb) with infrared emission properties were designed and synthesized by using different anionic ligands [1 -phenyl-3-methyl-4-(4-tertbutylbenzoyl)-5-pyrazolone and l-phenyl-3-methyl-4--5-pyrazolone and 2-naphtoyl trifluoroacetone] and netural ligands (2,2-dipyridine, phenanthroline, triphenylphosphine oxide and water). Three crystal structures of these complexes were obtained and structure studied, and the properties of photoluminescence and fluorescent lifetime were studied in detail.

我们通过选用不同的第一配体[1-苯基-3-甲基-4-(4-异丁酰基)-5-吡唑酮，1-苯基-3-甲基-4-(4-叔丁基苯甲酰基)-5-吡唑酮和2-萘基三氟乙酰丙酮]和第二配体(2，2-联吡啶，邻菲啰啉，三苯基氧膦)合成了16个稀土红外配合物(Ln=Er，Nd，Yb)，获得了其中三个配合物的单晶结构，研究了这些稀土红外配合物的光致发光和荧光寿命等性质。

The quantitative relation between the phase perturbation of the fundamental field and tripling field has been studied in detail.

以Ⅰ/Ⅱ类角度失谐KDP晶体的高强度三次谐波转换为例，详细研究了三次谐波转换过程中，基频光和三倍频光的波前相位畸变之间的定量变化关系。

All of the tripodal schiff base ligands and their complexes were characterized.

以三乙醇胺、巯基苯胺、巯基乙胺为初始原料，设计合成了六个三脚架结构的化合物，其合成路线如下：三乙醇胺与氯化亚砜反应得到三(2-氯乙基)胺(1)，然后与巯基苯胺或巯基乙胺在碱性条件下反应生成三脚架结构的三{[2-(2-氨基苯基)硫代]乙基}胺(2)或三{[2-(2-氨基乙基)硫代]乙基}胺(3)，然后再与水杨醛、2-甲酰基-8-羟基喹啉(8)、2-甲酰基-8-苄氧基喹啉(7)反应得到六种新型的含硫西佛碱化合

The ability of magnesium trisilicate to adsorb tetracycline and its relation to pHof the medium have been investigated UV-spectrophotometrically.

本文应用紫外分光光度法研究了体外三硅酸镁吸附四环素的能力及其与介质 pH 的关系；并应用尿药法研究了三硅酸镁及其在表面活性剂和枸橼酸的存在下对四环素吸收的影响；测定了三种不同处方的四环素混悬剂的相对生物利用度并进行了有关参数的统计比较。

From its roots, we gained 9 compounds including triterpenes, steroidal glycoside, and fatty acid, a triterpene and a of them are new compounds.

分别对肥牛树的根、茎、叶三个部分的乙醇提取物进行了提取分离工作，从其根中分离鉴定了9个化合物，包括三萜、甾醇苷、酚性化合物、螺环化合物和脂肪酸等，其中有两个新化合物，即一个三萜和一个螺环化合物。

CTTC undergoes ring-opening process to incorporate a trithiocarbonate moiety. The trithiocarbonate moiety in turn, functions as a reversible addition fragmentation chain transfer agent.

即环状三硫酯受到自由基进攻以后，发生开环反应并转化为线形三硫酯进入到聚合物的链中；线形三硫酯基团可以进一步作为RAFT试剂控制其后的聚合反应。

Rubescens, three new diterpenoids,together with seven known diterpenoids, two triterpenoids and tritriacontane.

Rubescens叶和嫩枝中分离出十三个单体化合物，其中有三个新的二萜化合物，七个已知的二萜，二个三萜化合物和三十三烷。

At 60 ℃ the reaction of 1-O-alkyl-2-O-acetyl-3-O-trityl glycerol with iodine/methanol system removed trityl and acetyl and gave 1-alkyl glycerol. But at r.t. the reaction only removed trityl and gave two isomers 1-O-alkyl-2-O-acetyl glycerol and 1-O-alkyl-3-O-acetyl glycerol.

1-烷氧基-2乙酰氧基-3-三苯甲氧基甘油醚与碘/甲醇体系反应，在60 ℃时，同时发生了脱三苯甲基及乙酰基，在室温下，仅脱三苯甲基，但乙酰基在反应过程中发生了部分转移，产生了两个异构体。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。