Applications of EPR and NMR spectroscopy in homogeneous catalysis

This book reviews advances in important and practically relevant homogeneous catalytic transformations, such as single-site olefin polymerizations and chemo- and stereo-selective oxidations. Close attention is paid to the experimental investigation of the active sites of catalytic oxidation systems and their mechanisms. Major subjects include the applications of NMR and EPR spectroscopic techniques and data obtained by other physical methods. The book addresses a broad readership and focus on widespread techniques available in labs with NMR and EPR spectrometers. Cover -- Half Title -- Title Page -- Copyright Page -- Contents -- Preface -- Authors -- Abbreviations -- Chapter 1: Basic Principles of EPR and NMR Spectroscopy -- 1.1 Electron and Nuclear Magnetic Moments in the Magnetic Field -- 1.2 Instrumentation for CW EPR Spectroscopy -- 1.3 Main Parameters Characterizing EPR Spectra -- 1.4 EPR Spectra of Frozen Solutions -- 1.5 Instrumentation for Pulsed FT NMR Spectroscopy -- 1.6 Main Characteristics of NMR Spectra -- 1.6.1 Chemical Shift -- 1.6.2 Spin-Spin Coupling -- 1.6.3 NMR Line Width -- 1.7 Bloch Equations -- 1.8 Pulsed FT NMR Spectroscopy -- References -- Chapter 2: Some NMR Spectroscopic Techniques Used in Homogeneous Catalysis -- 2.1 Measuring 1H and 13C NMR Spectra of a Sample Compound -- 2.1.1 One- and Two-Dimensional 1H and 13C NMR Spectra -- 2.1.2 1H COSY versus 1H TOCSY Spectra -- 2.2 1H Spectra of Paramagnetic Molecules -- 2.2.1 Probing the Structure of an Unknown Ni(II) Complex by Multinuclear NMR -- 2.2.2 Temperature Dependence of the Paramagnetic Shift -- 2.2.2.1 Temperature Dependence of the Paramagnetic Shift of Monomeric Compounds -- 2.2.2.2 Temperature Dependence of Paramagnetic Shift of Antiferromagnetic Dimers -- 2.2.2.3 Measuring Magnetic Susceptibility (Evans Method) for Studying Spin Equilibrium -- References -- Chapter 3: NMR and EPR Spectroscopy as a Tool for the Studies of Intermediates of Transition Metal-Catalyzed Oxidations -- 3.1 Superoxo Complexes -- 3.1.1 Superoxo Complexes of Co(III) -- 3.1.2 Superoxo Complexes of Pd(II) -- 3.1.3 Superoxo Complexes of Ni(II) -- 3.1.4 Superoxo Complexes of Copper(II) -- 3.1.5 Superoxo Complexes of Iron(III) -- 3.2 Alkylperoxo Complexes -- 3.2.1 Alkylperoxo Complexes of Molybdenum -- 3.2.2 Alkylperoxo Complexes of Titanium -- 3.2.3 Alkylperoxo Complexes of Vanadium -- 3.3 Peroxo Complexes Content: Introduction. Basic principles of EPR and NMR spectroscopy. The main parameters characterizing EPR spectra. The main parameters characterizing NMR spectra. Applications of EPR spectroscopy. What we learn from the EPR spectra of organic radicals. What we learn from the EPR spectra of transition metal catalysts. What we learn from the NMR spectra of transition metal catalysts.