This lecture covers the topic of metal carbonyls, focusing on their bonding characteristics and applications in catalysis. The instructor begins by reviewing previous concepts related to metal carbonyls, including the strength of the CO bond and its applications. The discussion progresses to a synthesis example involving a palladium phosphine complex, where the instructor emphasizes the importance of understanding the thought process behind the reactions rather than just the steps. The lecture then transitions to metal carbines, explaining their structure and how they can facilitate unique reactions such as ring-closing metathesis. The instructor highlights the differences between Fischer and Schrock carbines, detailing their properties and reactivity. Throughout the lecture, the instructor encourages students to think critically about experimental design and the factors influencing reaction pathways. The session concludes with a summary of the key points discussed, reinforcing the significance of metal carbonyls and carbines in chemical reactions and their practical applications in the field of chemistry.