Chapter 1 Photochemistry and Photophysics of Highly Excited Valence States of Polyatomic Molecules: Nonalternant Aromatics, Thioketones, and Metalloporphyrins .................................. 1 G.Burdzinski, J.Kubicki, A.Maciejewski, R.P.Steer, S.Velate, and E.K.L.Yeow Chapter 2 Proton Transfer Reactions in the Excited States .................... 37 Haruo Shizuka and Seiji Tobita Chapter 3 Photoreactivity of n,π*-Excited Azoalkanes and Ketones ............. 75 Werner M. Nau and Uwe Pischel Chapter 4 Photonucleophilic Substitution Reactions .......................... 131 Maurizio Fagnoni and Angelo Albini Chapter 5 Mechanistic and Synthetic Aspects of SET-Promoted Photocychzation Reactions of Silicon Substituted Phthalimides ..... 179 Ung Chan Yoon and Patrick S. Mariano Chapter 6 Photoamination with Ammonia and Amines ............................ 207 Masahide Yasuda, Tsutomu Shiragami, Jin Matsumoto, Toshiaki Yamashita, and Kensuke Shima Chapter 7 DNA-Templated Assembly of Helical Multichromophore Aggregates ..... 255 Bruce A. Armitage Index ............................................................. 289