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- azo hydrazone tautomerism 偶氮腙的互变异构现象
- Moreover,the reaction path,activation energies and equilibrium constance during the tautomerized reaction involving hydrazone form and azo form are obtained. 此外,还计算了醌腙式和偶氮式结构在互变过程中,反应路径、正逆反应活化能以及化学平衡常数。
- The tautomeric equilibrium between the azo type and the hydrazone type of these compounds in different solvents and different acidity has also been studied. 对它们在不同溶剂。不同酸碱度溶液中的偶氮式及腙式间互变异构平衡进行了研究。
- Density Functional Theory, Cytosine, Tautomerism. 密度泛函理论;胞嘧啶;
- Keywords NMR;1 - phenylazonaphthalene dyes;tautomerism of azo - hydrazone forms; 苯基偶氮萘染料;偶氮体-醌腙体的互变异构;
- Nylon fastening tapes with AZO free are available for108 colours. 尼龙粘扣带不含偶氮染料，常备108种颜色的现货。
- Removal of azo dye Acid Red B(ARB) by magnetic ferrite adsorbents. 用铁酸盐型磁性吸附剂去除偶氮染料酸性红B
- Nylon fastening tapes with AZO free are available for 108 colours. 尼龙粘扣带不含偶氮染料，常备108种颜色的现货。
- Anneal is in favor of the crystallization of AZO films. 退火有利于薄膜结晶;
- Azo test follow EU directives requirement is 30ppm max. 偶氮测试依据欧盟正式要求是最大值为百万分之30.
- This complex reaction is characterized by a keto-enol tautomerism eqilibrium and ester exchange reaction. 此螯合反应是由酮一烯醇互变异构平衡过程和酯交换反应组成。
- On the second part of the azo different nitrile synthesis of formamide. 第二部分研究了偶氮异丁腈甲酰胺的合成工艺。
- Keto-enol tautomerism is the most common tautomery phenomenon.Keto -enol themselves are the real chemical substance. 酮及烯醇互变是互变作用最普通的现象,它们都是真实的化学实体。
- "Constitutional isomers that can be readily converted from one to another are called tautomers (see tautomerism). 彼此间很容易相互转换的组成异构体称为互变异构体现象。
- Studies of the UV-VIS spectra of them in several acid solutions indicate the quinone-ammoni-um tautomerism. 在一定的酸性介质中，这类冠醚存在着铵琨互变异构，测定了它们在不同介质中的紫外-可见光谱，并对最大吸收峰进行归属。
- Semiempirical MNDO ealculations were performed in order to study theformhydroxamic acid-formhydroximic acid tautomerism. 应用半经验MNDO方法研究了甲异羟肟酸与甲羟肟酸的互变异构平衡。
- Meanwhile, a thin-layer chromatography for detecting those prohibited azo dyes in textiles is presented. 同时介绍了用薄层色谱分析法检测纺织品中禁用偶氮染料的方法。
- Pay attention on azo free problem on direct dye, some of the direct dye used are still not Azo free. 请注意在直接染色中的要求不含氮的问题,有些在使用的直接染色仍然是含氮的。
- When the tautomer DTP(1,3,7) reacts with the electrophilic carcinogen BPDE,the atomic S10 of DTP(1,3,7) superiorly attacks the BPDE. 二硫酮DTP(1;3;7)在水相中与致癌物BPDE进行亲核取代反应时;二硫酮DTP(1;3;7)中的S10原子优先进攻亲电试剂BPDE.
- The main action of this photocatalyst on azo dye is degradation besides a certain adsor... 其对偶氮染料有一定的吸附作用,但主要为降解作用。
