“trans/cis-[Co (en)2Cl2]Cl配合物的制备及其光谱鉴定”实验教学实施结果与探讨——培养学生批判性思维的典型案例之一

doi:10.3866/PKU.DXHX202006069

Abstract

Abstract:

This article mainly introduces the laboratory teaching results and discussions of "preparation and spectral identification of trans/cis-[Co(en)₂Cl₂]Cl", which is specially designed for the top talented chemistry-majored students in Xiamen University. Focusing on the two synthetic targets of "quality" and "quantity", i.e., how to get "pure" and "multiple" trans/cis-[Co(en)₂Cl₂]Cl complexes, the synthesis process and conditions were analyzed, reflected, and judged by questions and discussions based on the detailed and intuitive preparation process and UV-Visible absorption spectrum. Through this practice, we want to show how to effectively cultivate students' critical thinking in the laboratory teaching process.

Key words: trans/cis-[Co(en)₂Cl₂]Cl, Preparation and identification, Analysis and discussion of experimental results, Flipped Class, Critical thinking

Xiaoqing Ouyang, Chunyan Zhang, Rui Pan, Chanzi Ruan, Yinyun Lü, Yuhua Weng, Zhiqiang Dong, Shunü Peng, Huamin Li, Zhenling Xu, Yanping Ren. Laboratory Teaching Results and Discussions of "Preparation and Spectral Identification of trans/cis-[Co(en)₂Cl₂]Cl": One of the Typical Examples for Cultivating Students' Critical Thinking[J].University Chemistry, 2021, 36(3): 2006069.

Figures/Tables 8

References 13

1	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. 大学化学, 2021, in press. doi: 10.3866/PKU.DXHX202005062
2	吴江. 大学化学基础实验, 北京: 化学工业出版社, 2005, 228- 229.
3	王尊本. 综合化学实验, 第2版北京: 科学出版社, 2007, 97- 104.
4	国立台湾大学化学系编. 大学普通化学实验. 第14版. 台北: 国立台湾大学出版中心, 2015: 111-116.
5	Preparatory Problems 43rd International Chemistry Olympiad 2011 Ankara, Turkey (第43届国际奥林匹克化学竞赛实验预备题, 土耳其, 2011年), Problem 31. [2020-06-23]. https://wenku.baidu.com/view/ed204423bcd126fff7050bb5.html
6	Jacewicz D. ; Pranczk J. ; Wyrzykowski D. ; Zamojc K. ; Chmurzyn'ski L. Reac. Kinet. Mech. Cat. 2014, 113, 321. doi: 10.1007/s11144-014-0742-y
7	蔡维平. 基础化学实验(一), 第1版北京: 科学出版社, 2004, 279- 281.
8	武汉大学, 吉林大学, 等校编. 无机化学. 第3版. 北京: 高等教育出版社, 1994: 884-895, 994, 1028-1029.
9	叶诗琪; 肖丽. 科技与生活, 2011, (23), 191.
10	日本化学会编. 无机化合物合成手册第三卷(上). 第1版. 曹惠民, 译. 北京: 化学工业出版社, 1988: 252-256.
11	南京大学大学化学实验教学组编. 大学化学实验. 第2版. 北京: 高等教育出版社, 2010: 290-292.
12	Rigg J. M. ; Sherwin E. J. lnorg. Nucl. Chem. 1965, 27, 653. doi: 10.1016/0022-1902(65)80270-6
13	Hughes M. N. ; McWmNNIE W. R. J. Inorg. Nucl. Chem. 1966, 28, 1659. doi: 10.1016/0022-1902(66)80066-0

异构体	σ/cm^-1
异构体	NH₂不对称变形振动	N－H弯曲振动	CH₂摇摆振动	Co－N或Co－Cl伸缩振动
trans-[Co(en)₂Cl₂]Cl	1593.30	1114.87	887.76	587.55	473.14
cis-[Co(en)₂Cl₂]Cl	1591.84 1563.27	1115.29 1132.65	902.04 887.76 875.51	589.80 579.59	473.47 459.18

[1]	Jun Jiang, Quan Lan, Yuan Zheng, Zhenggen Zha. Teaching Exploration and Practice of the Organic Chemistry Laboratory English Course Based on the “Flipped Classroom + MOOC” Teaching Model [J]. University Chemistry, 2025, 40(9): 279-286.
[2]	Xin Hua, Songqin Liu. Research on Teaching Practice of Spectral Analytical Chemistry Based on Thematic Discussion [J]. University Chemistry, 2025, 40(7): 106-111.
[3]	Dawei Zhang, Yuqian Zhao, Mingyu Jiao, Yan Wang. Cultivation of Students’ Critical Thinking in the Practice of Ideological and Political in Organic Chemistry Courses: Taking the Discrimination and Analysis of Chemical Rumors as Examples [J]. University Chemistry, 2025, 40(4): 181-188.
[4]	Wenjian Zhang, Mengxin Fan, Wenwen Fei, Wei Bai. Cultivation of Critical Thinking Ability: Based on RAFT Polymerization-Induced Self-Assembly [J]. University Chemistry, 2025, 40(4): 108-112.
[5]	Yang Chen, Xiuying Wang, Nengqin Jia. Ideological and Political Design, Blended Teaching Practice of Physical Chemistry Experiment: Pb-Sn Binary Metal Phase Diagram [J]. University Chemistry, 2025, 40(3): 223-229.
[6]	Haiying Jiang, Huilin Guo, Yongliang Cheng, Tongyu Xu, Jiquan Liu, Mingli Peng. Teaching Design of the Nernst Equation Based on the “Flipped Classroom” Method [J]. University Chemistry, 2024, 39(8): 84-90.
[7]	Wenbing Hu, Jin Zhu. Flipped Classroom Approach in Teaching Professional English Reading and Writing to Polymer Graduates [J]. University Chemistry, 2024, 39(6): 128-131.
[8]	Fei Xie, Shichong Yu, Ting Wang, Yongsheng Jin, Dazhi Zhang, Yumeng Hao. Practice and Exploration of O-PIRTAS Flipped Classroom in Organic Chemistry Course [J]. University Chemistry, 2024, 39(4): 238-243.
[9]	Lijun Dong, Pengcheng Du, Guangnong Lu, Wei Wang. Exploration and Practice of Independent Design Experiments in Inorganic and Analytical Chemistry: A Case Study of “Preparation and Composition Analysis of Tetraammine Copper(II) Sulfate” [J]. University Chemistry, 2024, 39(4): 361-366.
[10]	Jinfeng Chu, Lan Jin, Yu-Fei Song. Exploration and Practice of Flipped Classroom in Inorganic Chemistry Experiment: a Case Study on the Preparation of Inorganic Crystalline Compounds [J]. University Chemistry, 2024, 39(2): 248-254.
[11]	Qinglan Hao, Junchao Su, Yuanyuan Jia, Ya Liu, Botao Teng. Application of "Online Preview-Flipped Classroom-Home Exploration" Teaching Mode Based on Cooperative Group Learning into Principles of Chemical Engineering [J]. University Chemistry, 2023, 38(9): 32-38.
[12]	Hua Yan, Junyong Wu, Shuchang Wu, Hao Chen, Zhangxin Chen, Aiguo Zhong, Yanxian Jin. Development and Application of an Online Thinking-Ability-Oriented Course of Physical Chemistry Experiment [J]. University Chemistry, 2023, 38(9): 39-46.
[13]	Qian Wu. Exploration and Practice of Efficient Diversified Teaching Mode of Specialized English for Chemistry [J]. University Chemistry, 2023, 38(9): 52-59.
[14]	Zhiqiang Dong, Bo Yi, Yechao Chen, Xin Chen, Chanzi Ruan, Chunyan Zhang, Zhenling Xu, Rui Pan, Yinyun Lü, Yuhua Weng, Wenwei Zhang, Yanping Ren. Results and Discussion on the Solvato/Thermochromic Behavior of [Ni(Me₃en)(acac)]BPh₄ Complex: The Results and Discussion on the Part of Inorganic and Analytical Chemistry Experiment of "The 10th National Undergraduate Chemistry Laboratory Tournament" [J]. University Chemistry, 2023, 38(8): 333-340.
[15]	Xiaoguang Sang, Jinxia Wang, Hao Meng, Xia Zhang. Study on Inorganic Chemical Problems in "Carbon Emission Peak and Carbon Neutralization": PBL Teaching Practice [J]. University Chemistry, 2023, 38(3): 75-79.

Laboratory Teaching Results and Discussions of "Preparation and Spectral Identification of trans/cis-[Co(en)₂Cl₂]Cl": One of the Typical Examples for Cultivating Students' Critical Thinking

RichHTML

PDF

Like

Knowledge

Abstract

Cite this article

share this article

Figures/Tables 8

References 13

Related Articles 15

Metrics

Recommended 0

Laboratory Teaching Results and Discussions of "Preparation and Spectral Identification of trans/cis-[Co(en)2Cl2]Cl": One of the Typical Examples for Cultivating Students' Critical Thinking

RichHTML

PDF

Like

Knowledge

Abstract

Cite this article

share this article

Figures/Tables 8

References 13

Related Articles 15

Metrics

Recommended 0

Laboratory Teaching Results and Discussions of "Preparation and Spectral Identification of trans/cis-[Co(en)₂Cl₂]Cl": One of the Typical Examples for Cultivating Students' Critical Thinking