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Transition to an Investigative Laboratory Program in Chemistry at Birmingham-Southern College

Transition to an Investigative Laboratory Program in Chemistry at Birmingham-Southern College. David J. A. Schedler and Laura K. Stultz. Introduction. National Science Foundation Grant Investigative Laboratories Development of Laboratory Projects Examples. Project Goals. Curricular Goals

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Transition to an Investigative Laboratory Program in Chemistry at Birmingham-Southern College

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  1. Transition to an Investigative Laboratory Program in Chemistry at Birmingham-Southern College David J. A. Schedler and Laura K. Stultz

  2. Introduction • National Science Foundation Grant • Investigative Laboratories • Development of Laboratory Projects • Examples

  3. Project Goals Curricular Goals • Improved laboratory experience • Better synergy between lecture and laboratory • Connections between chemistry courses Student Goals Improve - Problem solving and collaborative skills - Ability to apply experimental techniques to solve a chemical problem. - Ability to communicate results (written and oral)

  4. Investigative Laboratories • Students discover results instead of verifying them • Experimental protocols are largely student designed • Work is done in collaborative groups • Interpretation of results through data analysis • Group discussion

  5. Project Plan Gradualism Model – stepwise presentation of new material with specific goals Instrumental techniques as common thread - Molecular Modeling - FTNMR (1H and 13C) Project based Laboratories – Reinforces concepts and skills Student involvement in laboratory design

  6. First Semester Focuses on Techniques and Instrumentation • Distillation • Crystallization • Melting point • TLC • GC • NMR

  7. Second Semester Focuses on Application • NMR • FT-IR • Molecular modeling • Stereochemistry and Coupling Constants

  8. Projects should have clearly stated: • Objective • Outcome • Introduction • Theory for the instrumentation to be used • background into the chemistry involved • Experimental Procedure

  9. 2.39 kcal/mol 1.34 kcal/mol

  10. ΨTriplet of Ψtriplets ΨQuintet

  11. Diels-Alder Reaction • prediction of reaction product • carry out reaction using previously learned lab techniques Adapted from: McDaniel, Keith F.; Weekley, R. Matthew “The Diels-Alder Reaction of 2,4-Hexadien-1-ol with Maleic Anhydride: A Novel Preparation for the Undergraduate Organic Chemistry Laboratory Course” J. Chem. Educ.1997, 74, 1465.

  12. Structure Determination NMR IR Mechanistic explanation

  13. www.casper.organ.su.se/ke3690/jhh.html program calculates 3JHH values according to: C.A.G. Haasnoot, F.A.A.M. DeLeeuw and C. Altona Tetrahedron36 (1980) 2783-2792

  14. H3 H2 H1

  15. Electron Transfer Self Exchange Rates • Kinetic NMR experiment • Factors that affect the electron transfer rates Jameson, D.L.; Anand, R. J. Chem. Ed., 2000, 77, 88

  16. Acknowledgements • National Science Foundation (Award DUE-0126478) • Dr. Regina Stanton • Mr. Patrick McTamney • Ms. Karen Johnson • Mr. Nathan Boyd • Birmingham-Southern College • www.bsc.edu/chemistrylabs.htm

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