Author: Richard D. Harcourt Full Title: Bonding In Electron-Rich Molecules: Qualitative Valence-Bond Approach Via Increased-Valence Structures, 2nd Edition Publisher: Springer; 2nd ed. 2016 edition (November 3, 2015) Year: 2016 ISBN-13: 9783319166766 (978-3-319-16676-6), 9783319166759 (978-3-319-16675-9), 9783319307510 (978-3-319-30751-0) ISBN-10: 331916676X, 3319166751, 3319307517 Pages: 326 Language: English Genre: Chemistry: Theoretical and Computational Chemistry File type: PDF (True) Quality: 10/10 Price: 128.39 € Website: https://www.springer.com/gp/book/9783319166759 This second edition was updated to include some of the recent developments, such as “increased-valence” structures for 3-electron-3-centre bonding, benzene, electron conduction and reaction mechanisms, spiral chain O4 polymers and recoupled-pair bonding. The author provides qualitative molecular orbital and valence-bond descriptions of the electronic structures for primarily electron-rich molecules, with strong emphasis given to the valence-bond approach that uses “increased-valence” structures. He describes how “long-bond” Lewis structures as well as standard Lewis structures are incorporated into “increased-valence” structures for electron-rich molecules. “Increased-valence” structures involve more electrons in bonding than do their component Lewis structures, and are used to provide interpretations for molecular electronic structure, bond properties and reactivities. Attention is also given to Pauling “3-electron bonds”, which are usually diatomic components of “increased-valence” structures for electron-rich molecules. ------------- Damnant quod non intellegunt!