查询词典 oxadiazole

Finally, reacting II with PhNCO givethe compound 1-(6-nitrobenzimidazol-l-acetyl)-4-phenylsemicarbazide,III in the presence of〓 give the new cyclic compound 2-phenylamino-5-(6-nitrobenzimidazol- 1-methylene)-l,3,4-oxadiazole.

第三部分：以6-硝基苯并咪唑-1-乙酰肼为原料，分别与取代苯甲醛、苯乙酮及乙酰基二茂铁进行缩合反应，合成了10个新的6-硝基苯并咪唑-1-乙酰腙衍生物。

Eleven novel 2-alkylthio-5-(5,7-dimethyl-1,2,4-triazolo[1,5-a]pyrimidine-5-yl)-1,3,4-oxadiazole derivatives (5) and six novel 2-alkylthio-5-(5,7-dimethyl-1,2,4-triazolo[1,5-a]pyrimidine-5-yl)-1,3,4-thia- diazole derivatives (8) have been designed and synthesized by using 5-amino-3-ethoxycarbonyl-1H-1,2,4-triazole as a starting material.

以5-氨基－1H-1，2，4-三唑－3-羧酸乙酯为起始原料，设计合成了11个新型的2-取代硫醚－5-（5，7-二甲基－1，2，4-三唑并[1，5-a]嘧啶基）-1，3，4-恶二唑类化合物(5)和6个新型的2-取代硫醚－5-（5，7-二甲基－1，2，4-三唑并[1，5-a]嘧啶基）-1，3，4-噻二唑类化合物(8)。

Energy transfers from both carbazole and oxadiazole moieties to terbium complex were compared by means of photoluminescence.

单层聚合物电致发光器件ITO／PKMOTb／Al的启动电压低至6.2V。

We at last got six compounds of Schiff Bases of triazole derivaties and five compounds of 1,3,4-oxadiazole.

由于酰肼便宜易得，因此我们选取了两种酰肼通过几种不同的方法合成了五种唑类化合物并以其中三种化合物为基础对其进行修饰，得到了六种含三氮唑取代基的席夫碱和五种1，3，4-噁二唑类衍生物。

DFT were carried out to optimize the conformational isomers with minimum energies. Peak separations in the methyl and azomethine signals were also found to originate from the rotation hindrance of the N-N bond. After N'-acylideneacetohydrazides were converted to 1, 3, 4-oxadiazole compounds, the proton signal of the methyl group appeared as a single peak.

端甲基质子和次甲基质子信号裂分也来源于N-N键旋转受阻。N'-苄基酰腙通过缩合反应转变成1，3，4-二唑化合物，消除了甲基空间取向的差异，其信号变为单峰。

The molecule has a typical D-π-A structure with terminal units of electron donor and accepter groups. The triphenylamine group, as the electron donor, is connected to the oxadiazole group which is the electron accepter through the cinnamene group.

该分子具有典型的D-π-A型推拉电子结构，三苯胺基团作为给电子基通过苯乙烯共轭链桥接到吸电子基1，3，4-恶二唑基团。

The reactions of 〓with bptz generate a cyclic tetranuclear and a 1-D helical chain 〓 complexes with thehydrolysis reaction products: 2,5-di(4-pyridyl)-l,3,4-oxadiazole and N,N'-bis(α-hydroxyl-2-pyridyl)ketazine.

本文利用〓在不同的环境中与bptz反应得到两个水解产物形成的配合物并解析了其晶体结构，一个为一维链状配合物，另一个为一个四核环状结构。

These two oxadiazole-based multibranched chromophores show the molecular architecture of "D-A-A'-A-D" for BO-G2 and"D'-A-D-A-D'"for NO-G2, which have the different ability of intramolecular charge transfer .

吸收光谱和荧光光谱证实，NO-G2具有较大的激发态和基态偶极矩差值，存在着明显的分子内电荷转移和非线性吸收。

Chapter 2 introduces the synthesis, characterizations and applications of oxadiazole derivatives.

本论文所涉及的工作主要分为2部分，分别介绍了小分子电子传输材料和聚合物电荷传输材料的合成与表征。

The MNDO series methods have been used to study seven symmetrical oxadiazole derivatives.

采用MNDO系列方法对7个噁二唑对称衍生物进行了理论研究。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。