1. A high-energy, unstable molecular configuration that exists transiently during a chemical reaction, representing the transition state between reactants and products
The activated complex forms when reactant molecules collide with sufficient energy to break bonds and form new ones.
O complexo ativado se forma quando moléculas reagentes colidem com energia suficiente para quebrar ligações e formar novas.
2. In transition state theory, the intermediate state with the highest free energy along the reaction pathway
The lifetime of an activated complex is extremely short, typically on the order of picoseconds.
O tempo de vida de um complexo ativado é extremamente curto, tipicamente na ordem de picossegundos.