Part E: Competing Effects & Multi-substituent Rings
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A More Challenging Interpretative Nitration Experiment Employing Substituted Benzoic Acids and AcetanilidesEdward M. Treadwell and Tung-Yin Lin An experiment is described involving the nitration of ortho or meta, monosubstituted benzoic acids and monochlorinated acetanilides with nitric acid to evaluate the regioselectivity of addition through computational methods and 1H NMR spectroscopy. Treadwell, Edward M.; Lin, Tung-Yin. J. Chem. Educ.2008, 85, 1541.
Aromatic Compounds |
Computational Chemistry |
Electrophilic Substitution |
Molecular Modeling |
NMR Spectroscopy |
Synthesis
A Green, Guided-Inquiry Based Electrophilic Aromatic Substitution for the Organic Chemistry LaboratoryEric Eby and S. Todd Deal This alternative, electrophilic aromatic substitutionan iodination reaction of salicylamide, a popular analgesicuses environmentally friendly reagents and serves as a guided-inquiry experiment in which students are asked to predict the orientation of the substitution reaction and determine the product's structure using FT-IR spectroscopy. Eby, Eric; Deal, S. Todd. J. Chem. Educ.2008, 85, 1426.
Aromatic Compounds |
Constitutional Isomers |
Electrophilic Substitution |
Green Chemistry |
IR Spectroscopy |
Synthesis
Förster Resonance Energy Transfer and Conformational Stability of ProteinsKatheryn M. Sanchez, Diana E. Schlamadinger, Jonathan E. Gable, and Judy E. Kim Describes the integration of absorption spectroscopy, fluorescence spectroscopy, and Frster resonance energy transfer (FRET) measurements to probe important topics in protein folding. Comparison of conformational stabilities of cytochrome c measured via two chemical denaturants illustrates important concepts in protein folding and intermolecular interactions. Sanchez, Katheryn M.; Schlamadinger, Diana E.; Gable, Jonathan E.; Kim, Judy E. J. Chem. Educ.2008, 85, 1253.
ResonanceEd Vitz, John W. Moore A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Resonance Theory
Writing Lewis Structures for MoleculesEd Vitz, John W. Moore A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Lewis Structures |
Resonance Theory
Delocalized ElectronsEd Vitz, John W. Moore A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.