《Bispicolyamine-based supramolecular polymeric gels induced by distinct different driving forces with and without Zn2+》 was published in International Journal of Molecular Sciences in 2020. These research results belong to Park, Jaehyeon; Kim, Ka Young; Kang, Seok Gyu; Lee, Shim Sung; Lee, Ji Ha; Jung, Jong Hwa. Application In Synthesis of Bis(pyridin-2-ylmethyl)amine The article mentions the following:
Metal-coordination polymeric gels are interesting areas as organic/inorganic hybrid supramol. materials. The bispicolylamine (BPA) based gelator (1) showed excellent gelation with typical fibrillar morphol. in acetonitrile. Upon complexing 1 with Zn2+, complexes ([1 + Zn + ACN]2+ and [1 + zinc trifluoromethanesulfonate (ZnOTf)]+) with four coordination numbers were formed, which determine the gel structure significantly. A gel-sol transition was induced, driven by the ratio of the two metal complexes produced. Through NMR anal., the driving forces in the gel formation (i.e., hydrogen-bonding and π-π stacking) were observed in detail. In the absence and the presence of Zn2+, the intermol. hydrogen-bonds and π-π stacking were the primary driving forces in the gel formation, resp. In addition, the supramol. gels exhibited a monolayer lamellar structure irresp. of Zn2+. Conclusively, the gels’ elasticity and viscosity reduced in the presence of Zn2+. The experimental part of the paper was very detailed, including the reaction process of Bis(pyridin-2-ylmethyl)amine(cas: 1539-42-0Application In Synthesis of Bis(pyridin-2-ylmethyl)amine)
Bis(pyridin-2-ylmethyl)amine(cas: 1539-42-0) is a secondary amine with two picolyl substituents. As a tridentate ligand this compound provides three nitrogen donors that affords good selectivity for Zn2+ over biologically relevant metals such as Na+, K+, Mg2+ and Ca2+, and leaves coordination sites free for anion binding. Application In Synthesis of Bis(pyridin-2-ylmethyl)amine