Amino‐Induced Modulation of Electronic State and Neighboring Site Distance through Second Shell Boosted Catecholase‐Mimicking Activity of Electron‐Rich Cu Center

Small, Год журнала: 2024, Номер 20(45)

Опубликована: Июль 16, 2024

Boosting the biomimetic catalytic activity of nanozyme is important for its potential application. One common strategy to achieve this goal mainly focused on manipulating electronic state metal site through first coordination shell modulate adsorption/desorption strength related reactant, intermediate and/or product, but remained challenging. Taking Cu-based catecholase-mimicking example, work herein reports a different involving amino-induced modulation second raise electron density Cu site, which further triggers repulsion effect between neighboring geminal centers increase Cu─Cu distance. The resulting with electron-rich (DT-Cu) presents lower function and an upshifted d-band center in comparison counterpart (i.e., relatively electron-deficient TA-Cu), promotes transfer enhances adsorption strengths O

Язык: Английский

Steering N/S coordination number to accelerate catecholase-like catalysis over low-coordinated Cu site

Chemical Science, Год журнала: 2024, Номер unknown

Опубликована: Янв. 1, 2024

Modulation of coordination configuration is crucial for boosting the biomimetic catalytic activity nanozymes, but remains challenging. Here, we found that non-first-shell amino group in ligand was capable steering N/S number through remote induction to enable formation a low-coordinated CuN

Язык: Английский