Title
Azo-Based Ligands and Metal Complexes for NLO Applications
Abstract
We present herein the synthesis and the characterization of a bis iminopyridyl ligand that's functionalized by two azobenzene unit and formulated as 4,4'-((1E,1'E)-(((1E,1'E)-(pyridine-2,6-diylbis(methanylylidene))bis (azanylylidene))bis(4,1-phenylene))bis(-diazene-2,1-diyl))bis(N,N-dimethylaniline) (L1). This ligand reacts with one equivalent of zinc chloride (ZnCl2) to afford the corresponding mononuclear Zn(II) metal complex formulated as [ZnL <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sub> Cl <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> ]. Single crystals of this complex have been obtained and the X ray crystal structure analysis indicate complex [ZnL <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sub> Cl <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> ], the tridentate ligand L1 is coordinated to the zinc(II) through its three nitrogen atoms. UV-Visible absorption spectroscopy shows the occurrence of intramolecular charge transfer (ICT) from the electron donating dimethylamino group to the iminopyridyl fragment and that this ICT band is red shifted in [ZnL <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">1</sub> Cl <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> ] complex due to the Lewis acidity of the zinc(II) metal cation. This results indicate that the resulting [ZnL <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">1</sub> Cl <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> ] complex is a valuable candidate for Nonlinear Optical (NLO) applications.
Year
DOI
Venue
2019
10.1109/ICTON.2019.8840333
2019 21st International Conference on Transparent Optical Networks (ICTON)
Keywords
DocType
ISSN
azobenzene,iminopyridyl ligand,zinc(II) complex,intramolecular charge transfer,crystal structure.
Conference
2162-7339
ISBN
Citations 
PageRank 
978-1-7281-2780-4
0
0.34
References 
Authors
0
5
Name
Order
Citations
PageRank
A. Ayadi100.34
K. El Korchi200.34
D. Guichaoua300.34
S. Taboukhat400.34
abdelkrim elghayoury502.37