《Phosphate and Water Sensing with a Zinc-Dipicolylamine-Based Charge-Transfer Dye》 was written by Gayton, Jacqueline; Autry, Shane A.; Kolodziejczyk, Wojciech; Hill, Glake A.; Hammer, Nathan I.; Delcamp, Jared H.. Recommanded Product: Bis(pyridin-2-ylmethyl)amine And the article was included in ChemistrySelect in 2020. The article conveys some information:
A D-π-A (donor-π bridge-acceptor) dye with a conjugated dipicolylamine group as the donor was synthesized and characterized. When zinc is bound to the dipicolylamine ligand, charge transfer strength from the donor is decreased resulting in a large blue-shift in the absorption spectrum with a quenching of dye emission. Upon addition of phosphate, changes in both the absorption and emission spectrum are observed with intermediate states between the starting zinc complex and free dye observed The zinc-dye complex was found to react with two equivalent of phosphate or trace water to give the free dye. The water response is unexpected given the widespread use of the dipicolylamine group as an anion sensor in water. When the dipicolylamine group is part of conjugated D-π-A dye designs with zinc complexes, the dye is observed to act as a humidity sensor at low water amounts In the part of experimental materials, we found many familiar compounds, such as Bis(pyridin-2-ylmethyl)amine(cas: 1539-42-0Recommanded Product: Bis(pyridin-2-ylmethyl)amine)
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.Recommanded Product: Bis(pyridin-2-ylmethyl)amine