查询词典 moieties

A novel monomer the 1-methyl-4,5-bis (4-chlorobenzoy) cyclometer containing cyclohexene were prepared,so a group of novel polys containing the cyclohexene and phthalazinone moieties was prepared by the nucleophilic displacement reaction of 1-methy l-4,5-bis(4-chlorobenzoyl) cyclohexene and 4,4'-dichlorodiphenyl sulfone and 4-(3,5-dimethyl-4-hydroxyphenyl)-2,3-phthalazin-1-one.

用新型聚合单体 1-甲基-4，5-二(4-氯代苯甲酰基)环己烯与 4-(4-羟基苯基)-2 ，3-二氮杂萘-1-酮、4，4′-二氯二苯砜单体经亲核共缩聚反应，成功地合成了含环己烯结构的杂环联苯型聚醚系列聚合物。

To meet the multilayer operation of electro-optical devices, the self-crosslinkable fluorinated 6F-PEEK-PEP, 3F-PEEK-PEP and 11F-PAE-PEP terminated with phenyl ethynyl moieties were prepared successfully.

3F-PEEK和6F-PEEK薄膜在光通讯波段具有两个有较低吸收的"窗口"，也就是说在光通讯波段有较小吸收。

The system of two moieties is found, not only at Mount Gambier in South Australia, but also on the Darling River further to the east and in Queensland in the northeast; it is therefore widely distributed.

两个级别的制度，除了南澳大利亚的芒特甘比尔地区以外，在更靠东部的达令河流域和东北部的昆士兰也有，所以，这个制度通行颇广。

Synthesis , Structure and Biological Activities of Pyrethroids with Nitrogen Containing Five Membered Heterocyclic Ketone Moieties

含氮五元杂环酮的拟除虫菊酯的合成，结构和生物活性

The glass transition temperature increases and the melt temperature, crystallinity decreases with increasing the content of naphthalene moieties.

这些性质的改变是由于萘环的引入在增加了聚合物的刚性同时也降低了聚合物的有序排列能力所致。

In order to find active pesticide leading compounds, thinking about that triazolothiadiazoles had various biological activities, this paper designed and synthesized 11 novel title compounds from 3-substituted-4-amino-5-mercapto-1,2,4-triazoles with heterocyclic carboxylic acid via cyclization in the presence of phosphoryl chloride by the princple of combination of active strucural moieties. The structures of the title compounds were characterized by melting point, IR, 1HNMR and elemental analysis.

为了寻找高活性农药先导化合物，考虑到三唑并噻二唑衍生物具有广泛的生物活性，本文利用活性亚结构拼接原理，将活性基团分别引入1，2，4-均三唑并[3，4-b]-1，3，4-噻二唑杂环的3位和6位，合成了未见文献报道的3，6-二取代均三唑并[3，4-b]-1，3，4-噻二唑类化合物11个，并用IR、1HNMR及元素分析测试技术对其进行了结构表征。

The compounds are represented by the structural Formula 1, Chemical formula should be inderted here as it appears on the abstract in paper form. a prodrug thereof, or any pharmaceutically acceptable salt, solvate, isomer or racemic mixture of the compound or said prodrug wherein R1 is heteroaryl, N-arylaminocarbonyl, N-heteroarylaminocarbonyl, benzimidazolyl or benzothiazolyl; R15 is present or not and if present is H, aryl, alkyl, arylalky or heteroarylalkyl; A is aryl, heteroaryl, cycloalkyl, cycloalkylidene, heterocycloalkylidene or heterocycloalkyl wherein said aryl, heteroaryl, cycloalkyl, cycloalkylidene, heterocycloalkylidene and heterocycloalkyl moieties may be substituted or unsubstituted; and B, L, X and R18 are defined herein.

所述化合物用结构式1表示，包括其前药或所述化合物或所述前药的任何药学上可接受的盐、溶剂合物、异构体或外消旋混合物，其中R 1 为杂芳基、N-芳基氨基羰基、N-杂芳基氨基羰基、苯并咪唑基或苯并噻唑基；R 15 存在或不存在，如果存在，则为H、芳基、烷基、芳基烷基或杂芳基烷基；A为芳基、杂芳基、环烷基、环烷叉基、杂环烷叉基或杂环烷基，其中所述芳基、杂芳基、环烷基、环烷叉基、杂环烷叉基和杂环烷基部分可被取代或未被取代；B、L、X和R 18 如说明书所定义。

A series of cholesterol-bearing O-carboxylmethyl chitosan conjugates with different degrees of substitution of the cholesterol moieties and cholesterol-bearing chitosan were synthesized by the succinyl linkages and characterized by Fourier transform infrared, Proton Nuclear Magnetic Resonance (~1H NMR) and elemental analysis. These hydrophobized chitosan derivatives were amphiphilic in nature and their self-aggregation behavior in aqueous media was evaluated by the fluorescence probe technique.

课题的主要研究内容如下：采用化学的方法合成了不同分子结构、不同取代度的系列胆甾醇基壳聚糖衍生物—胆甾醇基壳聚糖和胆甾醇基-羧甲基壳聚糖，并应用先进的分析手段电位滴定、红外光谱法(IR、核磁共振波谱法等对原料、中间产物以及产物进行了结构表征，衍生物分子中的胆甾醇基取代度(3.2％～12.5％)采用元素分析的方法进行检测。

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。

The homology is extensive throughout the protein and all amino acid residues of Pdc that have been shown to be involved in ThDP binding, both of the thiazole and phosphate moieties, are precisely conserved in Thi3p.

整个蛋白具有广泛的同源性，并且丙酮酸脱羧酶的氨基酸残基，已被证明参与了ThDP结合，双方的噻唑和磷酸基，都精确的保存在Thi3p中。

Fancy gold-plated dangling earrings with facetted White Opal crystals.

花式镀金悬垂耳环与facetted白欧泊水晶。

This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.

本文选取石家庄市初中生物教师作为研究对象，运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查，调查结果发现，石家庄市初中生物教师这一群体普遍存在职业倦怠，情感枯竭程度偏高，成就感偏低，去个性化程度最为严重。