Synthesis, structural and spectroscopic properties of asymmetric Schiff bases derived from 2,3-diaminopyridine

被引：0
作者：
Agnieszka Pazik
Beata Kamińska
Anna Skwierawska
Łukasz Ponikiewski
机构：
[1] Gdansk University of Technology,Department of Chemistry and Technology of Functional Materials
[2] Gdansk University of Technology,Department of Inorganic Chemistry
来源：
Chemical Papers | 2016年 / 70卷
关键词：
asymmetric Schiff bases; X-ray crystal structure; cation complexation; fluoride; UV-VIS spectroscopy; H NMR spectroscopy;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Two Schiff base derivatives, 4-(2-amino-3-pyridyliminomethyl)phenol (I) and 3-(2-amino-3-pyridyliminomethyl)nitrobenzene (II), were synthesised and characterised by spectroscopy. The structure of I was determined by single crystal X-ray diffraction studies. The asymmetric Schiff base derived from 2,3-diaminopyridine selectively recognise transition and heavy metal cations, and some anion. Ligands I and II form stable complexes with Cu2+, Zn2+, Pb2+, Al3+ whereas ligand I also binds F~ ions. The stoichiometry for the host: cation is 1: 1 and 2: 1. The addition of F~ ion in CH3CN to ligand I causes a colour change of the solution from colourless to yellow. The binding behaviour of ligand I towards several ions was investigated using density functional theory calculations.
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页码：1204 / 1217
页数：13
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