1 research outputs found
Extremely Strong Self-Assembly of a Bimetallic Salen Complex Visualized at the Single-Molecule Level
A bis-ZnÂ(salphen) structure shows extremely strong self-assembly
both in solution as well as at the solid–liquid interface as
evidenced by scanning tunneling microscopy, competitive UV–vis
and fluorescence titrations, dynamic light scattering, and transmission
electron microscopy. Density functional theory analysis on the Zn<sub>2</sub> complex rationalizes the very high stability of the self-assembled
structures provoked by unusual oligomeric (Zn–O)<sub><i>n</i></sub> coordination motifs within the assembly. This coordination
mode is strikingly different when compared with mononuclear ZnÂ(salphen)
analogues that form dimeric structures having a typical Zn<sub>2</sub>O<sub>2</sub> central unit. The high stability of the multinuclear
structure therefore holds great promise for the development of stable
self-assembled monolayers with potential for new opto-electronic materials