Preface vii 1 Photogenerated Intermediates: Principles and Practice 1 2 Photogeneration of Carbon-Centered Radicals 41 3 Photogeneration of Heteroatom-Centered Radicals 91 4 Photogeneration of Biradicals and Radical Pairs 131 5 Photochemical Generation of Radical Ions 168 6 Photogeneration of Carbocations and Carbanions 260 7 Photogeneration of Carbenes and Nitrenes 302 8 Manipulating Intermediates the Photochemical Way 328 Index 365