NotesFAQContact Us
Collection
Advanced
Search Tips
Back to results
Peer reviewed Peer reviewed
Direct linkDirect link
ERIC Number: EJ1452284
Record Type: Journal
Publication Date: 2024-Jan
Pages: 4
Abstractor: As Provided
ISBN: N/A
ISSN: ISSN-0021-9584
EISSN: EISSN-1938-1328
Intrusive Learning Accompanying Knowledge Transfer during Organic Chemistry Laboratory Experiment: Synthesis, Characterization, and Photoisomerization of [alpha]-Cyanostilbenes
Pramod Kumar; Biplab Maji
Journal of Chemical Education, v101 n1 p120-123 2024
Discussion-based outcomes of organic chemistry laboratory experiments form a powerful tool to create a learning environment, facilitate teamwork, and build scientific skills and analytical ability for undergraduate science students. A Knoevenagel-type condensation reaction was selected to demonstrate these results by taking phenylacetonitrile and four different aldehydes as reactants to form a-cyanostilbenes. The reactions were performed under almost neat conditions open to air at room temperature. The short duration (2-20 min) and visual solid product formation also make the experiment attractive. Melting points, TLC, FTIR, UV-vis, and GC-MS were utilized to characterize and check the purity of the products. Photoisomerization studies were performed in sunlight. Substituent effects in the IR stretching frequency, UV-vis spectra, and photoisomerization behavior create a platform for group discussion and knowledge transfer.
Division of Chemical Education, Inc. and ACS Publications Division of the American Chemical Society. 1155 Sixteenth Street NW, Washington, DC 20036. Tel: 800-227-5558; Tel: 202-872-4600; e-mail: eic@jce.acs.org; Web site: http://pubs.acs.org/jchemeduc
Publication Type: Journal Articles; Reports - Descriptive
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Grant or Contract Numbers: N/A