In this article, the hydrogen-bonded self-assembly nanostructures of two tetracarboxylic acid derivatives and the effect of the deposition sequence on their co-assembly nanostructure were investigated by STM.
Here, we explored the effects of chemical structures on pyridine derivatives, such as the relative positions of the nitrogen atom and the lengths of the side chain on the backbone, on acid-pyridine co-assembly structures.
In this study, the self-assembly behavior of a hydrogen-bonded dimer formed by a low-symmetric carboxylic acid molecule (H5BHB) and its co-assembly behaviors with a series of specific pyridine molecules (BPD, BPDYB and TPDYB) were studied.
TMA molecules destroyed the single-row structure formed by TDA self-assembly. When COR was introduced into this system, the newly formed hexagonal co-assembly structure collapsed and the resulting structure is dependent on the concentration of the COR solution.
In this work, the self-assembly behavior of a pair of low-symmetry carboxylic acid molecules (H4OBDB and H4ADDI) and their co-assembly behavior with trimesic acid (TMA) as a bridging molecule were studied using a scanning tunneling microscope (STM).