大学化学 >> 2021, Vol. 36 >> Issue (4): 2005062.doi: 10.3866/PKU.DXHX202005062

化学实验 上一篇    下一篇

trans/cis-[Co(en)2Cl2]Cl配合物的制备及其水解反应动力学常数测定——面向大一学生的基础型综合化学实验

欧阳小清, 张春艳, 许振玲, 潘蕊, 吕银云, 阮婵姿, 翁玉华, 董志强, 任艳平()   

  • 收稿日期:2020-05-22 录用日期:2020-06-10 发布日期:2020-07-03
  • 通讯作者: 任艳平 E-mail:ypren@xmu.edu.cn
  • 作者简介:任艳平, Email: ypren@xmu.edu.cn
    第一联系人:

    共同第一作者

  • 基金资助:
    2017年福建省本科高校教育教学改革研究项目(FBJG20170295);2017年度厦门大学教学改革研究项目(JG20170204);国家基础科学人才培养基金项目(J1310024)

Preparation of trans/cis-[Co(en)2Cl2]Cl and Determination of Hydrolysis Reaction Kinetic: A Basic Comprehensive Chemistry Experiment

Xiaoqing Ouyang, Chunyan Zhang, Zhenling Xu, Rui Pan, Yinyun Lü, Chanzi Ruan, Yuhua Weng, Zhiqiang Dong, Yanping Ren()   

  • Received:2020-05-22 Accepted:2020-06-10 Published:2020-07-03
  • Contact: Yanping Ren E-mail:ypren@xmu.edu.cn

摘要:

为大一学生推荐一个基础型综合化学实验,即厦门大学为“化学拔尖计划”一年级学生个性化培养“量身定制”并经10年教学实践而逐步改进完善的实验项目——trans/cis-[Co(en)2Cl2]Cl配合物的制备及其水解反应动力学常数测定。该实验项目涵盖了配合物顺-反异构体、晶体场分裂能、配合物的水解反应动力学等基础理论知识,以及顺-反异构体配合物的制备、光谱鉴定及不同介质中水解反应动力学研究等实验操作技能。通过系统的实验,使学生深入了解顺-反异构体配合物的制备、分离和鉴定方法以及配合物水解反应动力学研究的思路和方法等,有助于学生对结构决定性质的直观认识和深刻理解,有助于加强学生对理论与实验的深度融合以及对学生的分析、判断和批判性思维能力的培养。

关键词: 基础型综合实验, Co (Ⅲ)配合物, 顺-反异构体, 制备与鉴定, 水解反应动力学

Abstract:

This paper mainly introduces the laboratory teaching experiment, preparation of trans/cis-[Co(en)2Cl2]Cl and determination of kinetic constants of their hydrolysis reaction, which has been carried out for 10 years and particularly designed for top-talented chemistry-majored students in Xiamen University. This experiment covers the basic theoretical knowledge such as the cis/trans isomers, the crystal field splitting energy and the hydrolytic reaction kinetics of the complex, and the experimental operation skills such as the preparation of cis/trans isomers, the spectral identification and the hydrolytic reaction kinetics research in different media. The purpose of this experiment was to let the students have a thorough understanding of the preparation of cis/trans isomers, the isolation and identification methods, and the methods of kinetic study on complex hydrolysis reaction. It is helpful for students to understand intuitively and profoundly that the structure determines property, to strengthen the deep integration of theory and experiment, as well as to cultivate the abilities of analysis, judging and critical thinking.

Key words: Basic comprehensive experiment, Cobalt(Ⅲ) complexes, cis/trans isomers, Preparation and identification, Kinetics of hydrolysis reaction

MSC2000: 

  • G64