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| Autor/in | Mobley, T. Andrew |
|---|---|
| Titel | NMR Kinetics of the S[subscript N]2 Reaction between BuBr and I[superscript -]: An Introductory Organic Chemistry Laboratory Exercise |
| Quelle | In: Journal of Chemical Education, 92 (2015) 3, S.534-537 (4 Seiten)Infoseite zur Zeitschrift
PDF als Volltext |
| Sprache | englisch |
| Dokumenttyp | gedruckt; online; Zeitschriftenaufsatz |
| ISSN | 0021-9584 |
| DOI | 10.1021/ed500371h |
| Schlagwörter | Kinetics; Organic Chemistry; Laboratory Experiments; Science Activities; Spectroscopy; Data Processing; Spreadsheets; Electronic Publishing; Undergraduate Students; Teaching Methods; Science Education; Introductory Courses; Educational Practices |
| Abstract | 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. (As Provided). |
| Anmerkungen | 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 |
| Erfasst von | ERIC (Education Resources Information Center), Washington, DC |
| Update | 2020/1/01 |
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