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Direct linkEsselman, Brian J.; Hofstetter, Heike; Ellison, Aubrey J.; Fry, Charles G.; Hill, Nicholas J. – Journal of Chemical Education, 2020
A set of inexpensive and pedagogically rich experiments focusing on S[subscript N]1, E1, and E2 reactions have been updated to include modern computational and spectroscopic analyses. The S[subscript N]1 experiment involves treatment of "tert"-amyl alcohol with hydrochloric acid to generate the corresponding alkyl chloride, which is used…
Descriptors: Science Instruction, Chemistry, Spectroscopy, Science Experiments
Hein, Sara M.; Kopitzke, Robert W.; Nalli, Thomas W.; Esselman, Brian J.; Hill, Nicholas J. – Journal of Chemical Education, 2015
A discovery-based Grignard experiment for a second-year undergraduate organic chemistry course is described. The exclusive Grignard reagent formed by the reaction of 1-bromo-4-fluorobenzene (1) with Mg is 4-fluorophenylmagnesium bromide (2), which is treated with either benzophenone or CO[subscript 2] to produce the corresponding fluorinated…
Descriptors: Science Instruction, Spectroscopy, Scientific Concepts, College Science
Esselman, Brian J.; Hill, Nicholas J. – Journal of Chemical Education, 2016
Advances in software and hardware have promoted the use of computational chemistry in all branches of chemical research to probe important chemical concepts and to support experimentation. Consequently, it has become imperative that students in the modern undergraduate curriculum become adept at performing simple calculations using computational…
Descriptors: Science Instruction, Undergraduate Study, College Science, Organic Chemistry
Esselman, Brian J.; Hill, Nicholas J. – Journal of Chemical Education, 2015
The electronic and molecular structure of the acylium cation ([CH[subscript 3]CO][superscript +], 1) receives varied treatment in undergraduate textbooks and online resources. The overall structure of 1 is typically represented as an equal combination of resonance structures containing C-O triple and double bonds, the latter structure occasionally…
Descriptors: Investigations, Undergraduate Students, Molecular Structure, Knowledge Representation
