Pham, Thanh Chung; Kim, Hyun Sung; Lee, Songyi published an article in 2021. The article was titled 《Polydiacetylenes Functionalized with Chelidamic Acid and 2,2′-Dipicolylamine for Colorimetric Responses to Cadmium Ions》, and you may find the article in Bulletin of the Korean Chemical Society.Computed Properties of C12H13N3 The information in the text is summarized as follows:
A novel polydiacetylene-linked ligand derived from the reaction between chelidamic acid and bis(pyridin-2-ylmethyl)amine (PDA-CB) showed excellent selectivity and sensitivity for Cd2+ ions compared with other metal ions, including Zn2+. An obvious color change between PDA-CB and PDA-CB + Cd2+ is clearly visible to the naked eye. The Cd2+-responsive color change of PDA-CB is attributed to the coordination between Cd2+ and CB ligand units and has been characterized by 1H NMR titrationBis(pyridin-2-ylmethyl)amine(cas: 1539-42-0Computed Properties of C12H13N3) was used in this study.
Bis(pyridin-2-ylmethyl)amine(cas: 1539-42-0) is a secondary amine with two picolyl substituents. The compound is a tridentate ligand in coordination chemistry and commonly used to produce Zn-based chemosensors/probes, such as Zinpry.Computed Properties of C12H13N3