Scheme 30.
Proposed Transition States (TSHB′), in the O–O Cleavage Step of the Catalytic Cycle of CcO (Peroxy to PM), May Possess Copper(II)-Oxyl (Highlighted in Green) Charactera
aSuch a species would be highly reactive towards hydrogen atom abstraction from a nearby phenol (possibly the histidine cross-linked tyrosine residue at the BNC).