查询词典 ar-methoxy-benzylidene

Some of the derivatives of triphenylcarbinol which contain a number of methoxy groups form halochromic salts even in aqueous solutions.

一些三苯基甲醇的衍生物甚至在水溶液中也可以形成加酸显色盐。

By using the 532 nm TEM00 laser beam,the laser-induced diffractive and optical limiting properties of the(2-methoxy-5-butoxy)Poly-phenylene vinylene derivative/chloroform Solution are studied.

用532 nm基模高斯光束对2-甲氧基5-丁氧基取代聚对苯撑乙烯的氯仿溶液进行激光诱导衍射实验及光限幅特性的研究。

Containing cyano groups in bridge vinylene instead of phenyl rings showed especial stability and 7 containing methoxy groups in thecentral phenyl ring showed significant instability.

这说明除了取代基引起的电子效应外，取代基位置和空间效应也是影响M-PPV稳定性的重要因素。

The devices of sandwiched structure were prepared by compounding poly[2-methoxy-5-(2-ethyl-hexyloxy)-l,4-phenylene vinylene] with SiO_2. The thickness of MEH-PPV of these devices are different. We found the suitable frequency of drive voltage to obtain the greatest brightness. The device of cascade structure was prepared based on this work.

采用共轭高分子聚2-甲氧基-5-(2′-乙基-己氧基)-1，4-亚苯基亚乙烯基与SiO_2制成夹层结构器件，研究了不同发光层厚度的器件的发光特性，发现长波峰的发光强度随驱动电压频率的增大而增强、短波峰的发光强度随驱动电压频率的增大而减弱，进一步分析了其机理。

The spectral properties of different mass percentages of the porphyrin (5, 10, 15, 20-tetra-p-tolyl-21H, 23H-porphine, TTP) doped poly [2-methoxy-5-(2'-ethylhexyloxy)-1, 4-phenylene vinylene] were studied by UV-Vis absorption and fluorescent emission spectra in this paper.

研究了不同质量浓度卟啉掺杂的MEH-PPV的紫外吸收和荧光发射光谱。

Firstly, the 10-methoxy-5H-dibenzazepine is synthesized through brominating and methoxylation and hydrolyzation from 5H-dibenzb, fJazepine-5-carbonyl chloride.

首先，研究了以5-氯甲酰基亚氨基芪为原料，经溴化、甲氧基化、水解合成了10-甲氧基亚氨基芪。

From the investigation into the visible spectra and performances on textile of these azo dyes, as acid dye, it was found that these dyes had deep coloring effects on dyeing wool or silk, and five of which could dye wool into black one at 3% o. w. f., especially the diazo dye derived from 2, 8-diamino-10-methoxy-5, 10-dihydrophenophosphazine 10-oxide and acet-J-acid, it could not only dye wool into black one but each fastness of the obtained dyed sample was good.

对这些已知结构的染料进行浸染染色，结果发现，它们作为酸性染料，在羊毛及丝绸纤维上染色时，能够获得比一般偶氮染料不宜获得的深色效应，其中5支染料得到黑色染样，尤其由2，8-二氨基-10-甲氧基-5，10-二氢磷杂吖嗪与乙酰J-酸形成的双偶氮染料得到黑色染样，其各项牢度都比较理想。

A New type of benzoxzine precursors was systhesized based on methoxy methylene diphenyl ether oligomer.The struture of product was characterized by IR and H-NMR analysis and effects of solvent polarity,temperature on the precursor composition were investigated.

以甲氧基次甲基二苯醚低聚物为基础合成了苯并口恶嗪预聚物，用H－NMR、IR表征了该预聚物的结构，讨论了反应温度、溶剂的极性等因素对合成预聚物的结构和组成的影响。

They are 2,7-dihydroxy-1,5,6-trimethoxy-9,10-phenanthrene,p-hydroxy phenyl aldehyde, 4-Hydroxybenzyl alcohol, Protocatechuic aldehyde, Gastrodin, 4,4'-Dihydroxydiphenylmethane,4-(4-(hydroxym-ethyl)phenoxymethylphenol,Isorhamnetin-3-O-glucoside,Isorhamnetin-3,7-di-O–glucoside, Imbricatin,2,3-dihydroxy-7-methoxy-9,10-dihydrophenanthropyrone, Cyclopholidone,Cyclopholidonol and β-daucosterol.

分别为：2，7-二羟基-1，5，6-三甲氧基-9，10-二氢菲，对羟基苯甲醛、天麻苷元、原儿茶醛、天麻素、4-（4-羟基-苄基）苯酚、4(4-苯氧基甲基苯酚、异鼠李素-3-O-葡萄糖苷、异鼠李素-3-O-7-O-二葡萄糖苷、Imbricatin、2，7-二羟基-3-甲氧基-9，10-二氢菲吡喃酮、Cyclopholidone、Cyclopholidonol和β-胡萝卜苷。

The hole mobility in vertical and horizontal directions were measured by means of time-resolved or transient electroluminescence and field-effect transistor methods for poly2-methoxy-5-(2'-ethylhexyloxy-1,4-phenylenevinylene.

以时间解析电激发光和场效应电晶体方法可分别量测得MEHPPV的垂直方向与平行方向之电洞载子迁移率。

The witness also told the jury at the Royal Courts of Justice in London that he saw a paparazzo fighting with a member of the public who was trying to stop him taking pictures in the minutes before the emergency services arrived.

他还告诉在伦敦皇家法庭的陪审团，在急救服务到来之前，他当时看见一个狗仔队正和一群阻止他拍照的人打架。

The entire N／C program on a tape is made up of an accumulation of these successive data blocks.

纸带上的整个数控程序由这些连续数据单元连接而成。