# In which condition CO uses the oxygen end for bonding?

Generally Metal Carbonyl complex are formed from Carbon end. Is it possible under some specific condition that the Oxygen end is used?

(PS -I know about the structures of M-CO bonding)

• Not quite what you are looking for: there probably are some Frustrated Lewis Pair systems with $\ce{CO}$ wherein the oxygen is coordinated. Technically, those are complexes. Jun 15 '20 at 14:51
• Of course it's possible - there's impressive variety of modes of coordination of CO. Jun 15 '20 at 17:31
• @Mithoron I mean under what conditions will CO be O-Coordinated Jun 16 '20 at 9:15