Dopamine polymerization promoted by a catecholase biomimetic CuII(μOH)CuII complex containing a triazine-based ligand

We describe herein the catecholase-like catalytic activity and dopamine polymerization by using a dinuclear [LCuII(mu-OH)(2)Cu-II] (ClO4)(2) (1) complex where L is the dinucleating triazine-based ligand 6-chloro-N-2, N-2, N-4, N-4-tetrakis pyridin-2-ylmethyl)-1,3,5-triazine-2,4-diamine. The kinetic parameters (k(cat) = 0.318 s(-1), K-M = 1.6 x 10(-3) mol L-1, and k(cat)/K-M = 198.8 L s(-1) mol(-1)), mechanistic insights into the oxidation of 3,5-di-tert-butyl catechol and early characterization of poly(dopamine) are presented.