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The acetylation, purification and characterization of a typical comprehensive chemistry experiment "the synthesis and characterization of acetylferrocene" were described in this paper. The details of reactants addition, reaction temperature control, neutralization, TLC monitoring, column chromatography and characterization of the product with infrared spectrum and hydrogen nuclear magnetic resonance spectrum were investigated. Instruction for students on how to plan comprehensive chemistry experiment, improve the ability for observing, analyzing and solving problems were discussed. 相似文献
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二茂铁酰基衍生物的研究进展 总被引:15,自引:2,他引:15
综述了近年来二茂铁酰基衍生物如二茂铁甲醛、二茂铁酮和二茂铁甲酸的合成及反应的研究进展,简要介绍了它在生物学、医学和电化学等领域的应用。参考文献73篇。 相似文献
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10种二茂铁基-1,1'-二烷基二茂铁经LiAlH4还原得到10种相应的二茂铁基-1,1'-二烷基二茂铁甲醇。这类羟基化合物对酸的敏感性很高。由2种二茂铁基-1,1'-二乙基二茂铁甲醇与BF3在二氯甲烷中反应形成了稳定的二茂铁基-1,1'-二乙基二茂铁甲碳正离子。无需从反应混合中分离,该离子与乙胺作用得到了2种N-取代产物。由元素分析、红外光谱和核磁共振氢谱证实了化合物的结构。 相似文献
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介绍了对美国约翰霍普金斯大学化学系教学实验室访问学习见闻。通过访问学习,发现其系统全面的实验室安全教育方式、行之有效的实验室安全管理措施、实验室垃圾与生活垃圾的分类处理办法及网络辅助实验教学模式、注重学生课堂实验笔记的实验课成绩评定方式等方面,都值得我们学习和借鉴。 相似文献
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The revision of "Suggestions for Teaching Contents and Requirements of Physical Chemistry Course for Chemistry Majors (2020 Edition)" is introduced. The way to use this suggestion is explained. Based on the ideas of student-centeredness and outcome-based education, the overall objectives of physical chemistry teaching and the knowledge, ability and quality objectives of each part are defined. It is of guiding significance for the teaching research, teaching reform, textbook composition and evaluation of teaching effectiveness of physical chemistry course in our country at present and in the future. 相似文献
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利用当前通用的多媒体技术、以多媒体制作工具Authorware为主,高级语言VB及其它一些主流的媒体创作工具为辅,设计了高分子化学多媒体教学系统。它由八个模块组成,即绪论、自由基聚合、自由基共聚合、离子聚合反应、配位聚合反应、连锁聚合实施方法、逐步聚合反应、聚合物的化学反应。每个模块又分为四部分,即具体章节、本章要求、知识拓展及课后作业。采用接口技术,实现了内容的录入、删除、修改、访查以及资料查阅等诸多功能。它不仅可以作为高分子化学课程课堂教学使用,又可作为本专业学生及相关专业学生有效地进行高分子化学课后复习、习题训练、自学并阅读课外参考资料。该教学系统使用方便、操作简单、针对性强,是一种较实用的计算机辅助教学工具。 相似文献
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近年来,我们对有机化学实验的教学方法进行了积极探索与实践,通过拓宽授课知识面、运用比较教学法、情境教学法、渗透化学史教育等途径,提升学生实验兴趣,调动学生学习积极性,激活学生科学思维,增强创新意识,提高了实验教学质量。 相似文献
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An interpretation on the "National Teaching Standard for Higher Chemistry Education for Chemistry Majors" and other suggestions and regulations proposed by 2013-2017 Instructional Committee of Higher Chemistry Education of Ministry of Education was made with emphasis on chemistry laboratory teaching. According to objectives of four kinds of personnel cultivation, the overall design and some implementation suggestions for the laboratory teaching system, teaching contents and teaching levels are suggested. It is of reference value for the future reform of chemistry laboratory teaching for chemistry majors. 相似文献