对苯醌

  • 网络benzoquinone;p-benzoquinone;pbq
对苯醌对苯醌
  1. 结果表明在电子传递体浓度为10~(-4)10~(-6)M范围内的三种传递体传递电子的能力次序为对苯醌>β胡萝卜素>维生素k1。

    The results indite that in the carrier concentration 10 ~ ( - 4 ) - 10 ~ ( - 6 ) M , the ability of the three carriers to transport electrons is in the following order : P-benzoquinone > β - carotene > vitamin K_1 .

  2. 测量了对苯醌(p-benzoquinone,PBQ)在CS2中的可见吸收光谱,论证了该实验中发现的507nm带来源于PBQ的n-π单-三态跃迁。

    The visible absorption spectra of p-benzoquinone ( PBQ ) in CS_2 were measured , and a weak absorption band around 507 nm attributed to n - π ~ singlet-triplet transition was demonstrated .

  3. CS2中对苯醌n-π~单-三态跃迁的可见吸收光谱及其共振拉曼光谱

    Visible Absorption Spectra and Resonance Raman Spectra of n - π ~ Singlet-Triplet Transition of p-Benzoquinone in CS_2

  4. 在NADH脱氢酶存在下,NADH可将对苯醌还原为对苯二酚。

    Quinone can be reduced to quinol by NADH in the presence of NADH - dehydrogenase .

  5. 三乙胺与2-氯-5-甲氧基对苯醌光电子转移反应的CIDNP研究

    Photo-CIDNP Study of Electron Transfer Reaction of Triethylamine with 2-Chloro-5-methoxy-p-benzoquinone

  6. 超声波振荡协助SPME-GC-MS联用测定海水中2,6-二特丁基对苯醌

    Determination of 2,5-cyclohexadiene-1,4-dione , 2,6-bis ( 1,1-dimethylethyl ) in seawater by ultrasonic oscillation assisted SPME-GC-MS

  7. 在H型电解槽中,以苯为原料,硫酸为支持电解质,二氧化铅为阳极,石墨为阴极,直接电氧化合成对苯醌。

    In an H type of electrolytic cell , with benzene as the starting material , H_2SO_4 as the supporting electrolyte , PbO_2 as the anode material , graphite as the cathode material , para quinone was synthesized by means of the direct electrooxidation technique .

  8. 无隔膜电解槽中对苯醌电合成的研究无隔膜槽中ACF电极成对电解脱色活性艳蓝KN-R

    Studies on Electrosynthesis of Para Quinone in an Undivided Electrolytic Cell Paired Electrolytic Decoloration of C.I.Reactive Blue 19 on ACF Electrodes in An Undivided Cell

  9. 实验结果表明,利用微波加热法合成2,3,5,6-双-(9,10-蒽)-对苯醌操作简单、反应时间短、收率高,同时,它有较强的荧光特性,适量的TNT会引起其荧光猝灭。

    The experimental result indicates that it is simpler , quicker , higher yield for the synthesis of 2,3,5,6-bis ( 9,10-anthracyl ) benzoquinone by using microwave assistance heat up . Besides , it have fluorescence intensity . And when add some TNT , the fluorescence decreases .

  10. 在285nm紫外激光辐照下,用时间分辨电子自旋共振(TRESR)波谱仪研究了对苯醌/乙二醇(PBQ/EG)体系,得到了发射的苯半醌中性自由基PBQH.和乙二醇碳自由基R。

    The CIDEP spectrum of p-benzosemiquinone / ethylene glycol ( PBQ / EG ) system has been obtained experimentally with the time-resolved ESR spectrometer by using 285 nm laser photolysis .

  11. 4-CP在降解过程中不仅产生了氯离子还有中间产物对苯二酚和对苯醌,以及小分子有机酸如草酸和丁二酸等。

    The degradation of 4-CP was accompanied by the formation of hydroquinone , 1,4-benzoquinone , and small molecule compounds such as oxalic acid and succinic acid . Chloride ion release and formation of oxidation intermediates were evidence of 4-CP degradation involving sulfate radicals .

  12. 对苯醌-2,5-二羧酸酯的合成

    The Synthesis of Benzoquinone - 2 , 5-dicarboxylates

  13. 微波辅助合成2,3,5,6-双-(9,10-蒽)-对苯醌及其荧光性质研究

    Synthesis of 2,3,5,6-Bis ( 9,10-Anthracyl ) Benzoquinone With Microwave-Assisted and Fluorescent Characteristic of It

  14. 苯直接电氧化合成对苯醌

    Direct Electrosynthesis p - Benzoquinone from Benzene

  15. 讨论了Cu/MCM-41氧化苯酚制备对苯醌的催化活性。

    The catalytic activity of Cu / MCM-41 was studied by oxidation of phenol to benzoquinone .

  16. 研究了对苯醌活化法在纤维素滤纸膜载体上固定化猪胰脂肪酶的最佳条件。

    The conditions of crosslinking porcine pancreas lipase to cellulose membrane carrier by means of benzoquinone were studied .

  17. 对苯醌开环后,进一步被氧化,中间会生成丁醇、丁酮、丙醇、乙二醇等。

    Thep-benzoquinone was oxidized to open the ring and formed other intermittent products such as butanol , butanone , propanoic acid and ethanediol .

  18. 幼虫和蛹均不含有毒性较强的2-甲基对苯醌和对甲酚,用作动物蛋白饲料较安全。

    Being free of the toxic MBQ and p-cresol , the larva and pupa stage of the beetle are safe as a protein fodder .

  19. 苯酚降解的中间产物主要为对苯二酚、邻苯二酚、间苯二酚、对苯醌、顺丁烯二酸、反丁烯二酸和草酸等。

    The main intermediates during the phenol degradation are hydroquinone , catechol , resorcinol , benzoquinone , maleic acid , fumaric acid and oxalic acid .

  20. 在对苯醌的乙二醇/水/硫酸溶液中,观察到苯醌自由基与溶液中质子发生交换效应。

    In the benzoquinone / ethylene glycol / water / sulphric acid system , the proton exchange effect between the benzoquinone radical and proton in the solution was observed .

  21. 当溶液中含有大量的自由基清除剂时,2,4,6-三氯酚首先被臭氧分子氧化成黄色的氯代对苯醌,然后氧化成甲酸和乙二酸。

    With the inhibition of OH · radicals , ozone molecule firstly destroyed 2,4,6-TCP to form chlorinated quinone , which was subsequently oxidized to formic acid and oxalic acid .

  22. 对苯二酚和甲醇在浓硫酸和对苯醌催化下,制得4-甲氧基酚,产率为80%。

    In this work , the 4-methoxyphenol was prepared from hydroquinone , methanol which were catalyzed by benzoquinone and concentrated sulphuric acid . The yield of 4-methoxyphenol was 80 % .

  23. 在酸性介质中,大洋锰结核可以被苯胺、苯酚很好的还原浸出,在该氧化还原反应中苯胺、苯酚可被氧化为对苯醌。

    In acid medium , ocean manganese nodules can be easily reduced and leached with aniline or phenol . In the oxidation-reduction reaction , aniline or phenol is oxidized to P-benzoquinone .

  24. 在上述研究的基础上,对1,4-苯醌及泛醌的自交换电子转移反应过程进行了研究,计算了反应的内重组能,溶剂重组能及电子转移速率常数。

    The internal reorganization energy and the solvent reorganization energy were calculated .

  25. 复合后部分聚苯胺红外吸收峰发生移动,这是由于聚苯胺内氮原子孤对电子和苯醌结构中的π电子向Sn原子空轨道转移造成的。

    It was confirmed that transfer of lone pair electron on N atom and л electron on benzene ring and quinone ring to Sn 's 5d empty orbit lead to the shift of absorption peak of PANI ;

  26. 本文在单球层脂质体体系中,以叶绿素a作光敏剂,Fe(CN)6~3-作电子受体,抗坏血酸作电子供体,对β&胡萝卜素、对苯醌和维生素k1传递电子的能力进行了研究。

    The ability of β - carotene , P-benzoquinone and vitamin K_1 to transport electrons in liposomes were studied by using chlorophyll a as photosensitizer , Fe ( CN ) _5 ~ ( 3 - ) as electron acceptor , and ascorbic acid as electron donor .

  27. 对成虫分泌物中的2-甲基对苯醌和对甲酚进行了定量分析,并探讨了不同日龄和性别的成虫防御性分泌物的分泌规律及再生性特点。

    MBQ and p-cresol in adult secretions were also quantitatively analyzed and the secretion rhythm of different age and sexual adults and regeneration of the secretion were reported in the paper .