In this chapter we continue our survey of the different types of ligand by looking at cases in which the π electrons of an unsaturated organic fragment, rather than a lone pair, are donated to the metal to form the M-L bond. ### 5.1 ALKENE AND ALKYNE COMPLEXES In 1827, the Danish chemist Zeise obt
The Organometallic Chemistry of the Transition Metals (Crabtree/The Organometallic Chemistry) || Metal Alkyls, Aryls, and Hydrides and Related Ï-Bonded Ligands
✍ Scribed by Crabtree, Robert H.
- Publisher
- John Wiley & Sons, Inc.
- Year
- 2005
- Weight
- 399 KB
- Edition
- 4
- Category
- Article
- ISBN
- 0471662569
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✦ Synopsis
σ -BONDED LIGANDS
Metal alkyls and aryls are perhaps the simplest organometallic species. Yet transition metal examples remained very rare until the principles governing their stability were understood in the 1960s and 1970s. These principles make a useful starting point for our study of alkyls because they introduce some of the most important organometallic reactions, which we will go on to study in more detail in later chapters.
After alkyls, we move on to metal hydrides and dihydrogen complexes, another area with important implications for later discussions.
📜 SIMILAR VOLUMES
An important series of catalytic reactions involve some of the intermediates and pathways discussed in previous chapters. Alkene metathesis (Eq. 12.1), now gaining wide acceptance in organic and polymer synthesis, goes via metal carbene intermediates. Alkene polymerization, a key modern development