NotesFAQContact Us
Collection
Advanced
Search Tips
Back to results
Peer reviewed Peer reviewed
Direct linkDirect link
ERIC Number: EJ1301196
Record Type: Journal
Publication Date: 2021-May
Pages: 5
Abstractor: As Provided
ISBN: N/A
ISSN: ISSN-0021-9584
EISSN: N/A
Using Donor-Acceptor Stenhouse Adducts to Teach Photochromism in the Undergraduate Laboratory
Roberts, Charis A.; Allen, Seth; Helmy, Sameh
Journal of Chemical Education, v98 n5 p1736-1740 May 2021
There has been dramatic growth in interest and research regarding organic photochromism in recent decades. Despite this, the topic is seldom addressed in the undergraduate chemistry curriculum. Herein, we present a straightforward and robust experiment for the second semester organic chemistry laboratory curriculum which combines multistep synthesis, photochromism, and optical characterization. Over the course of a three-step synthesis, students prepare both the open and closed isomers of a Donor-acceptor Stenhouse adduct. At each stage of the synthesis, the pure products are isolated by filtration and characterized by traditional means (FTIR, [superscript 1]H NMR). Additionally, students collect UV-vis data on the photoisomerization process and use this to calculate kinetic parameters. An inquiry-based variant of the experiment is also presented.
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: Higher Education; Postsecondary Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Grant or Contract Numbers: N/A