《A cyanobiphenyl-based ratiometric fluorescent sensor for highly selective and sensitive detection of Zn2+》 was published in Inorganica Chimica Acta in 2020. These research results belong to Bie, Fusheng; Cao, Han; Yan, Peng; Cui, Haizhu; Shi, Yijun; Ma, Jie; Liu, Xuejing; Han, Ying. COA of Formula: C12H13N3 The article mentions the following:
A novel fluorescent sensor (BCN, I) based on cyanobiphenyl and di-2-picolylamine (DPA) was designed, synthesized and characterized by the UV-vis absorption, fluorescence spectra and NMR studies. This sensor demonstrated ratiometric response, high selectivity and sensitivity for the detection of Zn2+ without the interference of other metal ions particularly the Cd2+ in HEPES buffer/DMSO solution The Job’s plot, HRMS (high-resolution mass spectroscopy) and single-crystal X-ray diffraction revealed the formation of 1:1 stoichiometry for BCN-Zn2+ complex. The binding constant (Ka) of the complex was determined to be 3.67 x 104 M-1 and the detection limit for Zn2+ was calculated to be 0.77μM. The entire results certificated that BCN can be an advantageous sensor for Zn2+ detection. After reading the article, we found that the author used Bis(pyridin-2-ylmethyl)amine(cas: 1539-42-0COA of Formula: C12H13N3)
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. COA of Formula: C12H13N3