Crystallization of a Two-Dimensional Hydrogen-Bonded Molecular Assembly: Evolution of the Local Structure Resolved by Atomic Force Microscopy.
Angew Chem Int Ed Engl
; 56(36): 10786-10790, 2017 08 28.
Article
in En
| MEDLINE
| ID: mdl-28700106
ABSTRACT
Structures of the aromatic N-heterocyclic hexaazatriphenylene (HAT) molecular synthon obtained by surface-assisted self-assembly were analyzed with sub-Å resolution by means of noncontact atomic force microscopy (nc-AFM), both in the kinetically trapped amorphous state and in the thermodynamically stable crystalline phase. These results reveal how the crystallization governs the length scale of the network order for non-flexible molecular species without affecting the local bonding schemes. The capability of nc-AFM to accurately resolve structural relaxations will be highly relevant for the characterization of vitreous two-dimensional supramolecular materials.
Full text:
1
Database:
MEDLINE
Language:
En
Journal:
Angew Chem Int Ed Engl
Year:
2017
Type:
Article
Affiliation country:
Germany