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The pigments synthesized from 2, 7-diaminoflurenone consistently show better photosensitivity than that containing anthraquinone. A plot of the E1/2 values against the Hammett constant σ was obtained for the pigments which have different substituents in the anilide ring. The plot reveals that neither a strong electron-releasing group, such as methoxy, nor a electron-withdrawing group, such as nitro-group, enhances the sensitivity of the photoreceptor in which these pigments are used as CGL materiel.

芴酮类偶氮染料的光敏性优于蒽醌类偶氮染料,其偶合基酰胺芳环取代基为强的给电子基团或强的吸电子基团时都不利于其光敏性的提高,只有当取代基基团为氯时其表现出最好的光敏性,这一结果与Law等人的研究结果相同。

The yield of TAMD was only 20% without participation of acetic acid, and it was almost 0% without chloranil.

没有冰乙酸,醇色体的收率仅为20%;没有四氯苯醌,醇色体的收率几乎为零。

The photo reactions of β-diketones compounds with chloranil in C6D6 were through free radical intermediates.

β二酮类化合物与四氯苯醌在C6D6溶液中的光化学反应过程具有自由基反应的特点。

The different substitutes had an effect on the main form of β-diketones, making the hydrogen donors to chloranil different correspondingly.

二酮类化合物中的不同取代基会影响其主要存在形式,因而使得四氯苯醌夺取氢的对象也有所不同。

The effect of acetic acid and its consumption, chloranil and its consumption on the preparation of TAMD by means of dioxygen liquid-phase oxidation of TMAL was probed into, and the results showed that both of them had great influence on the yield of TAMD.

探讨了冰乙酸及其用量、四氯苯醌及其用量对氧气液相催化氧化孔雀绿隐色体制取孔雀绿醇色体的影响,发现二者对醇色体的收率和纯度均有很大影响。

1 At a reaction temperature of 100 ℃ and a reaction time of 30 min to give 2,which was then subjected to condensation reaction with p-propoxy mandelic acid in the presence of phosphoric acid at a molar ratio of m(2)∶m( p-propoxy mandelic acid )∶m=1∶1∶1 at a reaction temperature of 60 ℃ for 3 h to yield 3,which was further oxidized by chloranil to give t.

对现有分散红356合成工艺进行了优化,以n∶n=1.2∶1投料,100℃反应30 min得缩合物2,再在等质量磷酸催化下与分批加入的等质量对丙氧基扁桃酸60℃缩合3 h得缩合物3,经温和氧化剂四氯苯醌氧化得标题化合物,总收率55%。

In the process, chloranil firstly was excited to singlet state and then a labile hydrogen abstraction interaction between singlet chloranil andβ-diketones was involved to form singlet stable neutral radical pairs.

光照作用下,四氯苯醌首先跃迁至单线态,然后夺取β二酮类化合物分子中的活泼氢,形成单线态中性自由基对。

After hydrolysis γ-polyglutamic acid became aminoglutaminic acid which could shape comoles compound(1∶1) in pH 9.6 of borax buffer solution with chloranil.

利用γ-聚谷氨酸水解成谷氨酸,在pH 9.6硼砂缓冲溶液中,能与四氯对苯醌形成1∶1的络合物,该络合物在波长350 nm处有最大吸收,通过测定其吸光度确定γ-聚谷氨酸含量。

Chloro-5,12-naphthacenequinone was synthesized from 2-(1-hydroxy-2-naphthyl)carbonylbenzoic acid by chlorination reaction using a mixture of phosphorus pentachloride and phosphorus oxychloride as a chlorating agent and then by ring-closing reaction using sulfuric acid as a dehydrating agent.

以2-[(1-羟基-2-萘基)羰基]苯甲酸为原料、五氯化磷/三氯氧磷为氯化剂进行氯化反应,然后用浓硫酸脱水环化,合成了6-氯-5,12-萘并萘醌,优化了反应条件,总收率达68.2%。

In the process of the sulphonate reaction, we use 1,2-dichloroethane as solvent and chlorosulfonic acid as the agent of sulfonation.

环化反应采用1,2-二氯乙烷作溶剂,用氯磺酸作磺化剂,在回流温度下进行磺化反应,3-十二烷基蒽醌磺酸的收率为85.75%。

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