Spectrophotometric determination of chondroitin sulfate using carbazole 咔唑分光光度法测定硫酸软骨素
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Synthesis and characterization of carbazole based dithiosemicarbazones 含咔唑环的二缩氨基硫脲的合成与表征
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Naphthalene ? anthracene ? carbazole 萘蒽咔唑
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Borsche carbazole synthesis 博歇咔唑合成法
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All - optical switching effect of poly vinyl carbazole with azobenzene chromophores 含偶氮苯生色团聚乙烯咔唑的全光光开关效应
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Through the experiment , it is known that the dissolving effect of benzene to phenanthrene in some studied organic solvent is best , moreover dmf to carbazole is best 通过实验可知,在所考察的溶剂中苯对菲的溶解效果最好,太原理工大学硕士学位论文而dmf对咔哇的溶解效果最好。
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Four donor - acceptor conjugated carbazole derivatives for two - photon absorption optics were designed and synthesized . the spectral characteristics and the structure - activity relationship were investigated 摘要设计、合成了四个新的?唑类具有较大双光子吸收截面的化合物,研究它们的光谱特性,对双光子吸收的构效关系进行初步探索。
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The other conjugation polymer was formed by copolymerization of n - ( a - naphthyl ) carbazole with l , 4 - di ( chloromethyl ) benzene . the third organic molecule was synthesized by heck reaction with 9 , 9 - di [ ( 4 - iodine ) phenyl ] fluorene and vinylcarbazole 一个共轭高聚物为n - ( -萘基)咔唑和对二氯甲基苯通过wittig - horner反应聚合得到的高分子化合物。
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In the paper the solubilities of anthracene , phenanthrene and carbazole are studied in benzene , toluene , xylene , the heavy solvent oil , clohexane , dmf , pyridine , cyclohexanone and acetone , and qualitative analysis is done by three aspects in the process of the solute dissolved the solvent : ( l ) the molecular struture and the interspace struture ; ( 2 ) reciprocity force of the intermolecule ; ( 3 ) the cohesion energy 本文考察了蒽、菲、咔唑在苯、甲苯、二甲苯、重溶剂油、环己烷、 dmf 、吡啶、环己酮和丙酮等有机溶剂中的溶解度。并从三个方面对溶剂溶解固体定性分析: ( 1 )分子结构及空间结构, ( 2 )分子之间相互作用力, ( 3 )内聚能,得到的结果与实验得到的数据基本一致。
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At 70c , dissolved time 60min , solvent ratio 125 : 50ml / g , the effect of benzene is best to separating phenanthrene of crude anthracene , phenanthrene content of crude anthracene is increased from 10 . 3 % to 41 . 7 % . at 120c , dissolved time 80min , the solvent ratio 75 : 30ml / g , the effect of dmf is best to separate carbazole from the compound of anthracene and carbazole , and in the high or common temperature when the compound is separated the solid content may be seen that anthracene content is almost . so , the common temperature is selected in the filtration of the experiment 苯在70 ’ c 、溶解时间60min 、溶剂比125 : 5oml / g ,对分离粗葱中菲的效果最好,可以使粗葱中菲的含量从10 . 3 %提到41 . 7 % 。 dmf在120 ’ c 、溶解时间somin 、溶剂比75 : 30ml / g时,对分离葱和咔哇混合物中咔哇的效果最好,并且从高温和低温下分离后得到固体含量可以看出,在这两个温度下过滤得到葱的含量差不多,因此,本实验选择在常温下过滤。