Electron Spin Resonance (eBook)

Chapter 1: What is ESR Spectroscopy; The ESR Experiment; Sensitivity; Saturation; Nuclear Hyperfine Interaction; Operation of an ESR Spectrometer; Optimization of Operating Parameters; Applications of ESR Spectroscopy; Electronic Structure Determination; Analytical Applications;Determination of Rates;References; Chapter 2: Isotropic ESR Spectra; Line Positions in Isotropic Spectra;Hyperfine Coupling Parameters; Second-order Splittings; Spin Hamiltonian Parameters from Spectra; Interpretation of Isotropic Parameters; Linewidths in Isotropic Spectra; Incomplete Averaging of Anisotropies; Rates of Fluxionality from Linewidths; Organic Radical Reactions; Analysis of Isotropic ESR Spectra; Preliminary Examination of the Spectrum; What do you expect to see?; Are the Gross Features of the Spectrum Consistent with the Model?; An Example; Detailed Analysis for Determination of Parameters; Computation of Multiplet Intensity Ratios; Multiplet Patterns Due to Isotopomers; Second-order Shifts in Line Positions; Related Techniques (ENDOR); References; Chapter 3: Second-order Effects on Line Positions; Understanding the Variation in Line Widths; Puzzling Line Shapes; Use of ESR Spectra to Determine Formation Constants; References; Chapter 4: Introduction: Solid-State ESR Spectra; Spectra of Dilute Single Crystals; Analysis of Frozen Solution Spectra; Interpretation of the g-Matrix; Interpretation of the Hyperfine Matrix; Organometallic Examples; A Low-spin Manganese(II) Complex; Some Cobalt(0) Radical Anions; Organic Examples of Solid-State ESR Spectra; Irradiated Single Crystal Of Glycylglycine; X-irradiated Single Crystal of Methylene Diphosphonic Acid; Non-Coincident Matrix Axes; Symmetry Considerations; Experimental Determination of Matrix Axis Orientations; Organometallic Examples of Non-Coincident Matrix Axes; A Chromium Nitrosyl Complex; Iron Pentacarbonyl Ions; Another Low-Spin Manganese(II) Complex; Chromium(I) Piano-Stool Complex; [(RCCR')Co2(CO)6]- and [SFeCo2(CO)9]-; (o-xylylene)-Mn(dmpe)2; Cobalt Dithiolene Complexes; "g-Strain"; References; Chapter 5: Bloch's Phenomenological Model; Derivation of the Bloch Equations; Steady-State Solution; Chemical Exchange-The Modified Bloch Equations; Further Discussion of Line Shapes; Applications of the Modified Bloch Equations; Alternating Linewidth Effects; Spin Labels; References; Chapter 6: Biradicals; Exchange Coupling; Organic Triplet-State Molecules and the Dipolar Interaction; Organic Triplet-State Molecules; Transition Metal Complexes with S>1/2; Spin-Orbit Coupling; High-Spin Transition Metal Ions; Examples: K3Cr(CN)6 and K4V(CN)6; References; Chapter 7; Second-order Perturbation Theory Treatment of Spin Hamiltonian with; Non-Coincident g- and A-Axes; The Electron Zeeman Term; Nuclear Hyperfine Interaction; Perturbation Theory Treatment of Hyperfine Term;Example of Application of These Results; Quadrupole Coupling; Perturbation Theory Treatment of Quadrupole Term; Example of Application of Analysis of Quadrupole Effects; References