337P日本大胆欧美裸体艺术_久久久久精品无码专区_一个人看的免费视频WWW中文字幕_欧美熟妇精品视频网免费观看
第 42 卷第 4 期Vol. 42 No. 4
2012 年 8 月Aug 2012

所屬欄目:功能材料

二茂鐵的電合成及反應條件研究
李 琪,喬慶東*,孫 悅,任鐵強,楊占旭 (遼寧石油化工大學(xué) 石油化工學(xué)院,遼寧 撫順 113001)
摘 要:以高純度的環(huán)戊二烯(CPD)為原料,以金屬鐵為陽(yáng)極,鹵化鹽作為導電鹽,有機溶劑作為介質(zhì),在采用氮氣保護的情況下電解合成二茂鐵。對電解合成二茂鐵的反應條件進(jìn)行了優(yōu)化研究,結果表明:電解液比例為二甲基亞砜(mL)∶環(huán)戊二烯(mL)∶溴化鈉(moL)=10∶1∶0.008。實(shí)驗分別以鐵板和鎳板作為工作電極和對電極,極板間距為1~1.5 cm,電解電壓為3.2~5.2 V(vs.SCE),反應時(shí)間為5 h,反應溫度為40℃,強烈攪拌條件下電解合成效率較高。
關(guān)鍵詞:二茂鐵;環(huán)戊二烯;電解合成
中圖分類(lèi)號:TQ 268.4  文獻標識碼:A  文章編號:1009-9212(2012)04-0066-04
Studies on Electrosynthesis of Ferrocene
LI Qi,QIAO Qing-dong*,SUN Yue,REN Tie-qiang,YANG Zhan-xu (School of Petrochemical Engineering,Liaoning Shihua University,Fushun 113001,Liaoning,China)
Abstract:Ferrocene was electrochemically synthesized under nitrogen atmosphere by using high purity of cyclopentadiene as the raw material,iron as the anode,halide salt as the conductive salt,and organic solvent as the medium. The reaction conditions were studied and optimized. The compositions of the electrolyte included 10 mL of dimethyl sulfoxide,1 mL of cyclopentadiene and 0.008 mol of sodium bromide. Iron plate and nickel plate were served as the working electrode and the counter electrode respectively,and the distance of the two electrodes was 1~1.5 cm. The working electrode potential was at the range of 3.2~5.2 V(vs.SCE). The reaction time was 5 hours and the reaction temperature was 40℃. Under the above conditions as well as strong stirring,the efficiency of the electrolytic synthesis was the best.
Key words:ferrocene;cyclopentadiene;electrochemical synthesis
基金項目:遼寧省教育廳科技攻關(guān)項目(L2011057)。
作者簡(jiǎn)介:李 琪(1969-),女,遼寧撫順人,副教授。主要研究方向:精細化工。(E-mail:liqifs@126.com)
聯(lián) 系 人:喬慶東。(E-mail:qiaoqingdong@163.com)
收稿日期:2012-09-20
337P日本大胆欧美裸体艺术_久久久久精品无码专区_一个人看的免费视频WWW中文字幕_欧美熟妇精品视频网免费观看