SYNTHESIS AND STUDY OF PROPERTIES OF ZINC COMPLEX WITH 3-(2-PYRIDYL)-5-(3,4,5-TRIMETOXYPHENYL)-1,2,4-TRIAZOLE
- 20 July 2020
- journal article
- Published by V.I. Vernadsky Institute of General and Inorganic Chemistry in Ukrainian Chemistry Journal
- Vol. 86 (6), 65-73
- https://doi.org/10.33609/2708-129x.86.6.2020.65-73
Abstract
A procedure has been developed for the synthesis of a zinc complex with chelating li-gand 3-(2-pyridyl)-5-(3,4,5-trimethoxyphenyl)-1,2,4-triazole. Within the framework of the density functional method, with the B3LYP functional in the SBKJC basis, the equilibrium geometry of the ground electronic state of the ligand molecule and zinc complex was determined. The physicochemical properties of the ligand were also characterized: logP = 4.1±0.1, рКf1 = 3.31±0.05, рКf2 = 10.2±0.1, ε275 ≈ 1·105 l·mol–1·cm–1. It was shown that complexation is accompanied by an increase in fluorescence intensity, for the complex λemmax ≈ 458 nm. The absorption spectrum of the complex is characterized by two bands with maxima at 278 nm (ε278 ≈ 1.3·104 l·mol–1·cm–1) and 322 nm (ε322 ≈ 1.2·104 l·mol–1·cm–1).This publication has 9 references indexed in Scilit:
- New 3-(2-pyridyl)-1,2,4-triazole derivatives and their palladium (II) complexesFrench-Ukrainian Journal of Chemistry, 2015
- Supramolecular ChemistryPublished by Wiley ,2009
- Synthetic fluorescent sensors for studying the cell biology of metalsNature Chemical Biology, 2008
- A Novel, Cell-Permeable, Fluorescent Probe for Ratiometric Imaging of Zinc IonJournal of the American Chemical Society, 2002
- A New Cell-Permeable Fluorescent Probe for Zn2+Journal of the American Chemical Society, 2000
- Recent development of zinc-fluorophoresChemical Society Reviews, 1998
- Density-functional thermochemistry. III. The role of exact exchangeThe Journal of Chemical Physics, 1993
- Development of the Colle-Salvetti correlation-energy formula into a functional of the electron densityPhysical Review B, 1988
- Self-consistent molecular orbital methods. XXIII. A polarization-type basis set for second-row elementsThe Journal of Chemical Physics, 1982