Although strategies to stabilize the singlet state of carbenes are known, obtaining stable triplet electromers remains a challenge. Now it has been shown that transition-metal substitution enables the generation of triplet metallocarbenes stabilized by spin-polarized push–pull interactions; these compounds exhibit appreciable lifetimes beyond cryogenic temperatures.
- Ze-Jie Lv
- Kim A. Eisenlohr
- Sven Schneider