Solvo-thermal Preparation of One Novel Cadmium(II) Coordination Polymer with 1-(4-Aminobenzyl)-1,2,4-Triazole and Bi-functional Photo-Luminescent Sensing for Acetone and Dichromate

摘要

In this work a 1,2,4-triazole derivative 1-(4-aminobenzyl)-1,2,4-triazole (abtz) was utilized, one new cadmium(II) coordination polymer, namely [Cd(abtz)I-2](n) (1) was prepared through the powerful solvo-thermal synthetic strategy. In compound 1, the abtz building blocks are interlinked through the central Cd-II ions forming the two-dimensional (2D) layer coordination framework. Powder X-ray diffraction (PXRD) characterization also reveals that we have prepared the pure phases of coordination polymer 1. Optical properties have been determined, which can behave the excellent photo-luminescent emission of coordination polymer 1. Photo-luminescent experiment also reveals that coordination polymer 1 can behave the highly sensitive detection for acetone molecules with high K-sv value (K-sv = 4.12 x10(4) L center dot mol(-1)) in the recyclable detection fashion. Additionally, coordination polymer 1 also can behave the highly sensitive detection for pollutant dichromate with excellent quenching efficiency K-sv (K-sv = 2.12 x 10(4) L center dot mol(-1)) and low detection limit [38 x 10(-3) mM (S/N = 3)]. UV/Vis, photo-luminescent lifetime, and PXRD patterns also have been determined to analyze the detection mechanism.