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ERIC Number: EJ1062153
Record Type: Journal
Publication Date: 2015-Mar
Pages: 4
Abstractor: As Provided
Reference Count: 14
ISBN: N/A
ISSN: ISSN-0021-9584
NMR Kinetics of the S[subscript N]2 Reaction between BuBr and I[superscript -]: An Introductory Organic Chemistry Laboratory Exercise
Mobley, T. Andrew
Journal of Chemical Education, v92 n3 p534-537 Mar 2015
A simple organic chemistry experiment is described that investigates the kinetics of the reaction between 1-bromobutane (BuBr) and iodide (I[superscript -]) as followed by observing the disappearance of BuBr and the appearance of 1-iodobutane (BuI) using [superscript 1]H NMR spectroscopy. In small groups of three to four, students acquire data to examine the concentration-dependence of both the organic substrate and the nucleophile under pseudo- first-order and second-order conditions. After data processing, students analyze three data sets (one second-order experiment, and two first-order experiments with different concentrations of iodide) using an electronic spreadsheet. Students discuss the experimentally determined rate law, comparing it to that predicted for this S[subscript N]2 reaction.
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 - Research
Education Level: Higher Education; Postsecondary Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A