ISSN print edition: 0366-6352
ISSN electronic edition: 1336-9075
Registr. No.: MK SR 9/7

Published monthly
 

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

Agnieszka Pazik, Beata Kamińska, Anna Skwierawska, and Łukasz Ponikiewski

Department of Chemistry and Technology of Functional Materials, Narutowicza Street 11/12, 80-233 Gdansk, Poland

 

E-mail: mikaga20@wp.pl

Abstract: 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.

Keywords: asymmetric Schiff bases – X-ray crystal structure – cation complexation – fluoride – UVVISspectroscopy – 1H NMR spectroscopy

Full paper is available at www.springerlink.com.

DOI: 10.1515/chempap-2016-0058

 

Chemical Papers 70 (9) 1204–1217 (2016)

Friday, February 26, 2021

IMPACT FACTOR 2019
1.680
SCImago Journal Rank 2019
0.331
SEARCH
Advanced
VOLUMES
XXVIII. International Conference on Coordination and Bioinorganic Chemistry
© 2021 Chemical Papers