The photoconductive properties of the pigments containing anthraquinone are studied in bilayer photoreceptor. A linear relationship between pigments that bear a substituent in the anilide ring in the coupler moiety and Hammett constant σ was obtained. Therefor, we conclude that electron-withdrawing groups enhances the sensitivity of these pigments.

對蒽醌系列偶氮染料光敏性的研究結(jié)果表明无码色区，偶合基酰胺芳環(huán)上的基團會影響其光敏性，并隨吸電子性質(zhì)的增強光敏性增加美女国产精品视频是黄网站，首次揭示了其光敏性與Hammett常數(shù)σ間有良好線性關系的規(guī)律在线看黄色网站免费。

The results of UV absorption show that λ max is not sensitive to the electronic effects exerted by the substituent in the coupler moiety. The λ max has a small red-shift when the anilide aromatic ring in the coupler moiety is larger. This indicates that the conjugation effect of the anilide ring with chorosorb is not very significant. It is important to note that a red-shift of 60-130 nm was observed when the coupler component changed from a 2-hydroxy-3-naphthanilide to a 2hydroxy-11H-benzocarbazole-3-naphthanilide coupler. The red-shift may be due to the conjugation resulting from the carbazole ring.

對上述三個系列偶氮染料吸收光譜的研究結(jié)果表明，偶合基酰胺芳環(huán)共軛環(huán)的擴大對偶氮染料在可見光區(qū)最大吸收紅移作用不是很顯著同人漫18禁福利网站；當偶合基萘環(huán)上共軛環(huán)擴大了一個咔唑環(huán)后欧美日韩午夜情爱在线视频观看免费，其偶氮染料在可見光區(qū)的最大吸收大幅紅移，跨入近紅外染料行列性受天堂，這一結(jié)果對紅外偶氮染料的設計合成具有重要的參照價值日韩免费精品视频。

Results That the different toxicity of the nitrobenzol compounds to HB,because of different substituent and different position of substituent.

目的 評價常見的 13種硝基苯類化合物的急性毒性。

Analytical results showed that the upper clear liquid of pyrolysis oils was mainly consisted of water-soluble substances,such as phenol,cresol,xylenol,sugars,hydantoins,morpholines,pyranones and pyridine derivatives compounds,etc.,while the lower sediment was mainly insoluble or hardly water-soluble substances,such as the big substituent phenolics(the number of substituent carbon atoms of which is greater than or equal to 2),aryl phosphate esters,fatty acid esters and nitrile compounds,and so on.

研究表明最新黄色网站在线入口，熱解油上層清液主要是一些較易溶于水的物質(zhì)国产黄色视频99视频，如苯酚、甲酚800毛片、二甲酚日本一本区免费中文高清、糖類、乙內(nèi)酰脲類av人人摸人人操人人舔、嗎啉類久久黄色视频免费看、吡喃酮類和吡啶類化合物等；而下層沉淀則主要為不溶或難溶于水的物質(zhì)自拍小视频福利在线，如大取代基酚類（取代基碳原子數(shù)≥2）老妇毛多多、磷酸三芳基酯類、脂肪酸酯類和腈類化合物等欧美性爱黑人A片。

The invention discloses a process for preparing N-Boc derivative or N-Cbz derivative of chiral alpha, alpha'-double substituent pyrrolidine which contains ethylenic link and acetylenic link substituent.

本發(fā)明公開了一種制備含烯鍵和炔鍵取代基的手性α91se资源在线观看，α'-二取代吡咯烷的N-Boc衍生物或N-Cbz衍生物的方法。

Wherein X is an oxygen atom or a sulfur atom; C*, C** and C*** are asymmetric carbons; R 1 , R 2 , R 4 , R 5 , R 8 , R 9 and R 10 are each a lower alkyl group optionally having substituent and the like, or R 4 and R 5 and the like in combination optionally form a homocyclic ring optionally having substituent and the like; R 3 is an aryl group optionally having substituent and the like; R 6 and R 7 are each a hydrogen atom and the like; Nu is -CR 16 (COR 17 )(COR 18 ) wherein R 16 , R 17 and R 18 are each a lower alkyl group optionally having substituent and the like, and the like; and EWG is an electron withdrawing group.

通式中国内自拍av，X代表氧或硫自拍国语日韩欧美视频在线播放网站；C *、C **和C ***分別表示不對稱碳国产无码AAA片；R 1 视频三区欧美极品在线看片、R 2 、R 4 、R 5 噜噜在线、R 8 高清一区二区三区视频、R 9 和R 10 分別代表任選取代的低級烷基等，條件是例如R 4 和R 5 可以相互結(jié)合形成任選取代的同素環(huán)等国产一级av免费看；R 3 代表任選取代的芳基等福利国产亚洲；R 6 和R 7 分別代表氫原子等；Nu表示-CR 16 (COR 17 )(COR 18 )(其中R 16 欧美,国产,日韩黄色视频、R 17 和R 18 分別代表任選取代的低級烷基等)等AA黄片A；并且EWG表示吸電子基團。

Electron donating substituent CH〓, OCH〓 and 4, 5-benzo make λ〓 red shift, electron with -drawing substituent F, Cl and CF〓 make λ〓 hypsochromic shift; b The W〓 is bigger than relative symmetrical carbocyanines, and the ratio of 0-1＇ and 0-0＇ transition intensity increase with the increase of σ〓; c The absorption and the fluorescence spectra are mirror image, and the λ〓 have a good linear relationship; d The Stokes shift △λ〓 and the Hammett σ〓 constant have a good linear relationship.

研究了染料的光物理性質(zhì)毛片看A片免费的，①苯環(huán)上取代基影響染料的λ〓和摩爾消光系數(shù)一片黄色网站最好的，相對于H，給電子取代基CH〓羞羞网站在线、OCH〓成人蕾丝电影在线播放视频免费、4，5-benzo使λ〓紅移亚洲国产污视频，摩爾消光系數(shù)減小欧美性XXXX18一19，吸電子取代基F日韩综合AV在线一区二区、ClAV原创在线、CF〓使λ〓藍移，摩爾消光系數(shù)減醒侵夼访朗旄咀劬镁谩免费啪啪黄色视频；②化合物吸收峰的半峰寬較相應的對稱染料的大，且振動肩部與最大吸收峰的強度比隨σ〓增大而增大亚洲欧美精品；③吸收光譜與熒光光譜呈鏡像關系欧美一级强视频网址，且λ〓與λ〓呈良好的線性關系；④化合物的Stokes位移△λ〓與取代基的Hammett σ〓常數(shù)呈線性關系97免费无码视频人妻超级碰碰碰。

In this part, the densities of sodium benzoate, sodium nitrobenzoate, sodium chlorobenzoate and sodium methylbenzoate in DMFwater mixed solvents have been measured at 298.15K with an Anton Paar Model 55 densimeter. From these densities, apparent molar volumes and partial molar volumes have been calculated, transfer volumes from water to DMF-water mixtures and substituent contributions to the transfer volumes have also been obtained. Solvent and substituent effects are discussed in detail. The Scaled Partical Theory has been applied to the ternary solutions to evaluate the partial molar volumes of cavity formation and the volumes change associated with solute-solvent interaction.

選擇了含有取代基團的芳香類有機電解質(zhì)中国jizz，主要是苯甲酸鈉、硝基苯甲酸鈉欧美午夜A级限制福利片、氯苯甲酸鈉和甲基苯甲酸鈉的鄰日韩丝袜福利网址在线观看视频免费、間、對同分異構體作為研究對象高清无码内射操逼肏屄，用DMA 55型振蕩管密度計測定了它們在不同質(zhì)量百分數(shù)組成的DMF-水混合溶劑中的密度精品国产综合第一区福利av，利用這些密度數(shù)據(jù)，計算了表觀摩爾體積和偏摩爾體積爱爱潮喷小视频免费播放，得到了這些單取代苯甲酸鈉從水到DMF-水混合溶劑中的遷移偏摩爾體積及苯環(huán)上不同位置的取代基對遷移偏摩爾體積的貢獻值操人黄片视频免费，討論了溶劑效應和取代基效應，并將定標粒子理論應用于此三元電解質(zhì)溶液中。

According to the experience of the research of the indoles alkaloid, we designed a series of novel compounds which contained indoles heterocyclic as the flat aromatic group, benzyloxy substituent at indoles 6 site as the nonhydrophilic group tail, carboxylic derivatives and TZDs bioisosterism substituent at indoles 2 site or 3 site as the hydrophilic group head.

于是根據(jù)我們課題組多年來對吲哚生物堿研究的經(jīng)驗亚洲欧美日韩另类图片，我們設計了以吲哚作為中間平面芳環(huán)體系免费看黄污，6位連接芐氧基作為疏水尾部，2位或3位連接羧酸及其衍生物欧美性爱第8页、噻唑烷二酮及其電子等排體的一系列化合物免费看毛片使劲操。

The ten target compounds from alkyl substituent to aryl substituent that have not yet been reported,which was obtained by dehydration, Subsequently treated with sodium nitrite resulting nitroso compounds and then reduced.

本論文以2-羥基-3-萘酸和鄰巰基苯胺為原料，通過分子脫水正在播放真实破99年久久、亞硝化成人黄色网站18、還原等反應合成了10個不同取代基團的4-苯并噻唑基-[1，2-d]萘并噁唑衍生物A片网页免费在线观看，并優(yōu)化了合成的工藝條件先锋影音最新色资源在线观看。