Nuclear Magnetic Resonance (NMR)

  1. Chemical Shift and Spectral Interpretation
    1. Origin of Chemical Shift
      1. Electronic Shielding
        1. Electron Density Effects
          1. Local Magnetic Fields
            1. Diamagnetic Shielding
            2. Deshielding Mechanisms
              1. Electronegativity Effects
                1. Inductive Effects
                  1. Resonance Effects
                  2. Chemical Shift Scale
                    1. Parts Per Million (ppm)
                      1. Field Independence
                        1. Reference Standards
                          1. Calibration Procedures
                        2. Factors Influencing Chemical Shift
                          1. Inductive Effects
                            1. Electronegativity
                              1. Distance Dependence
                                1. Additive Nature
                                2. Resonance Effects
                                  1. π-Electron Systems
                                    1. Aromatic Rings
                                      1. Carbonyl Groups
                                        1. Conjugation
                                        2. Magnetic Anisotropy
                                          1. Aromatic Ring Current Effects
                                            1. Carbonyl Anisotropy
                                              1. Triple Bond Effects
                                                1. Geometric Dependence
                                                2. Hydrogen Bonding
                                                  1. Intermolecular Effects
                                                    1. Intramolecular Effects
                                                      1. Exchange Phenomena
                                                        1. Concentration Dependence
                                                        2. Solvent Effects
                                                          1. Bulk Susceptibility
                                                            1. Specific Interactions
                                                              1. Aromatic Solvent Effects
                                                                1. Polarity Effects
                                                                2. Temperature Effects
                                                                  1. Thermal Motion
                                                                    1. Conformational Changes
                                                                      1. Exchange Processes
                                                                    2. Chemical Shift Ranges and Assignment
                                                                      1. Proton Chemical Shifts
                                                                        1. Aliphatic Protons
                                                                          1. Aromatic Protons
                                                                            1. Heteroatom-Bound Protons
                                                                              1. Functional Group Correlations
                                                                              2. Carbon-13 Chemical Shifts
                                                                                1. Aliphatic Carbons
                                                                                  1. Aromatic Carbons
                                                                                    1. Carbonyl Carbons
                                                                                      1. Heteroatom Effects
                                                                                      2. Assignment Strategies
                                                                                        1. Chemical Shift Prediction
                                                                                          1. Correlation Tables
                                                                                            1. Incremental Methods
                                                                                              1. Database Searching