The Synthesis And Research Of Two-component Low Molecular Mass Organic Gel

Low mass weight organic gel is that small organic compound can be assembled into a three-dimensional network structure wrapped solvent molecules by non-covalent intermolecular interactions, including hydrogen bonding, van der Waals forces, π-π stacking and the like. Low mass weight organic gel typically has the stimuli responsive natures for temperature, pH, ultrasound and so on, so it is more adjustable, while the molecule itself can be modified specifically to give it the appropriate functionality. As a new type of soft material, the low mass weight organic gel has a good prospect in chemical sensors, life sciences, environmental science and other areas. Therefore, in the study of materials science and supramolecular chemistry, the low mass weight organic gel materials have attracted more and more attentions.Since the two-component gel materials can selectively add each component, and they have a more flexible regulation performance, it is quite important in the study of low mass weight organic gel. N atom of the pyridine group can form hydrogen bonds with proton active, thus can effectively promote the formation of two-component gel system; Two-hydroxyl group can bind to boric acid specifically, so it has been commonly used in gel materials research.In this paper, we synthesized three molecules based on pyridine and two-hydroxy group, among them, the molecule TB-B is a super gelator, can combine common organic acids to form a stable gel, we have studied formed the gel material with a-ketoglutarate, using scanning electron microscopy images and rheological properties of the gel confirmed the its structure, the NMR and infrared spectroscopy confirmed the forces between molecules, meanwhile, we also studied chiral, the light-emitting property and acid-base regulation of the gel system, provided a theoretical basis for the further application of the gel material. However, the molecular DB-Y and DH-H can not form expected gels, we think about the reasons, the solubility of the molecule DB-Y is a major problem restricting the formation of the gel, and for molecule DH-H, the driving force for assembling into gel is not sufficient. Therefore, the two molecules need to be further improved molecular design.