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有机光电导体己在静电复印、全息记录、信息存储等方面得到应用。特别是半导体激光器的研制成功,人们对研究适用于近红外的有机光电导体材料越来越感兴趣,注意发展为特殊体系应用的以颜料为基础的光电导体上。 相似文献
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液—液相转移催化反应合成N—取代吩噻嗪 总被引:2,自引:0,他引:2
本文叙述以四正丁基溴化铵为相转移催化剂,液一液相转移催化合成了六个 N-取代吩噻嗪化合物。由于在方法上作了改进,所以产率均优于文献报导。 相似文献
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Nikulin S. S. Misin V. M. Komarov V. M. Misin M. V. 《Russian Journal of Applied Chemistry》2003,76(8):1327-1330
2-Vinylphenothiazine was prepared, and its polymerization was studied. The possibility of using 2-vinylphenothiazine and its polymer as antioxidant in industrial rubber formulations was examined. 相似文献
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报道了一种斑蝥素的常压合成方法。以3-氧代-4-甲酸甲酯四氢噻吩为起始原料,经氰基化和腈醇脱水反应制得3-氰基-4-甲酸甲酯-2,5-二氢噻吩(1); 1水解制得2,5-二氢噻吩-3,4-二羧酸(2); 2在二氯亚砜作用下脱水制得关键中间体2,5-二氢噻吩-3,4-二羧酸酐(3); 3依次经D-A反应和Raney Ni催化加氢的脱硫反应合成了斑蝥素(5),总收率38%,其结构经1H NMR, 13C NMR和MS(ESI)确证。研究了离子液体、反应时间和反应温度对D-A反应的影响。确定D-A反应的较优条件为:[BMIM]·BF4为离子液体,于35 ℃反应20 h,斑蝥素前体产率为86%。 相似文献
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双(N┐苯基┐3┐咔唑基)甲苯碘盐的合成李笃信*郭自强兰卫东(山西大学化学系太原030006)关键词苯基咔唑甲苯碘盐,有机光电导体,敏化剂,合成1997-10-27收稿,1998-03-13修回山西省自然科学基金资助项目有机光电导体简称OPC,因其具... 相似文献
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XUE Yan-feng XU Da-peng ZHANG Guang-qiang ZHOU Xian-feng DING Zhanhui LIU Xiao-mei SU Wen-hui 《高等学校化学研究》2008,24(2):135-137
ZrSiO4 and coesite were obtained under high-pressure and high-temperature from the nano precursor of a-SiO2 and ZrO2. XRD and Raman measurements indicate that ZrSiO4 was formed at a temperature higher than 920 ℃ under a pressure of 3.6 GPa. As the pressure increased to 3.9 GPa, the ZrSiO4 formation temperature was reduced to 815 ℃. The formation temperature for coesite was 990 ℃ under 3.9 GPa. The lower formation temperature for ZrSiO4, as compared to that for coesite, provided an experimental evidence that the coesite in the Earth's surface usually occurs as inclusions in ZrSiO4. 相似文献
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WANG De-jun LIU Xiao-mei ZHU Cheng-jun YAN Duan-ting LIU Fu-lin SU Wen-hui 《高等学校化学研究》2010,(3):352-354
With the help of high-energy mechanical milling and α-SiO2 as the initial material, we investigated the synthesis of coesite at a high temperature and high pressure under the condition of adding a certain amount of hard Fe filling. The synthetic samples were measured by XRD and Raman spectroscopy. The results show that a small amount of small-sized coesite can be obtained under 2.5 GPa and 973 K. 相似文献
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以金属钾和碳酸钠为反应原料, 在压力为2 GPa, 温度为500 ℃的密封白金坩埚中反应18 h, 所得产物通过粉末X射线衍射和显微拉曼分析进行了表征, 证实合成出了微米级的金刚石. 对金刚石的合成机理进行了研究, 推测其反应过程为碳酸钠在铂和钾的作用下分解出CO2, CO2与钾反应得到金刚石. 研究结果表明金刚石可以在温和的条件下合成. 相似文献
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