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Lei Li; Fu Pi; Gu Zhan; Qian-Qian Yang; Ying-Chun Chen; Zhi-Chao Chen; Wei Du – Journal of Chemical Education, 2024
An organic chemistry experiment designed for senior undergraduates focuses on bifunctional catalysis, a critical yet often omitted topic at the undergraduate level, but essential for advanced studies in chemistry. By utilization of a tertiary amine-thiourea catalyst in the asymmetric Michael addition reaction, the experiment showcases the…
Descriptors: Undergraduate Students, College Science, Organic Chemistry, Laboratory Experiments
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T. Leon Venable – Journal of Chemical Education, 2024
As an introduction to quadrupolar effects in NMR spectroscopy, students use low field ([superscript 1]H, 60 MHz), benchtop [superscript 13]C NMR spectroscopy to contrast the spin-spin coupling behavior of [superscript 13]C to the dipolar [superscript 1]H and quadrupolar [superscript 2]D in familiar solvents C(H/D)Cl[subscript 3], C(H/D)[subscript…
Descriptors: Inorganic Chemistry, Science Laboratories, Scientific Concepts, Spectroscopy
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Mei Zhang; Wangmin Hu; Wenjing Liu; Chang Lei; Jun Guo; Hongcai Shang; Junling Hou – Journal of Chemical Education, 2022
Interdisciplinary experiments within chemistry are very important for the improvements in the overall quality of the education received by students. In this work, we describe an interdisciplinary experiment that was successfully completed by undergraduate students. This training integrates multiple disciplines including natural product medicinal…
Descriptors: Science Experiments, Laboratory Experiments, Chemistry, Spectroscopy
Gerard G. Dumancas; Noemi Carreto; Oliver Generalao; Guoyi Ke; Ghalib Bello; Arnold Lubguban; Roberto Malaluan – Journal of Chemical Education, 2023
Chemometric techniques such as partial least-squares (PLS) regression have been applied with huge success to a wide array of chemical problems including multicomponent analysis of analytes in complex mixtures. Despite this, there are few examples of laboratory pedagogical exercises that involve students in the acquisition of chemical data from…
Descriptors: Undergraduate Students, College Science, Chemistry, Science Laboratories
Vaclav Matousek; Radek Matuska; Tomas Vranka; Martin Adamec; Tadeas Herentin; Jiri Kalacek; Jan Havlik – Journal of Chemical Education, 2023
Triboluminescence is a fascinating phenomenon that can engage students' interest in chemistry. However, safe, cost-effective, and accessible laboratory experiments featuring highly triboluminescent substances are limited. To bridge this gap, we present a simple, rapid, semimicro test tube preparation of the visually engaging manganese complex…
Descriptors: Secondary School Science, College Science, Chemistry, Science Instruction
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Kearns, James K.; van der Wielen, Matthew – Journal of Chemical Education, 2021
By focusing on food and a pervasive contaminant, this experiment engages student interest and effort while providing essential instruction and experience. As institutions are challenged by existing and emerging budgetary constraints, this experiment offers a determination approach employing commonly available instrumentation, the graphite furnace…
Descriptors: Undergraduate Students, College Science, Chemistry, Laboratory Experiments