Premium
A Bis(pyrrole) Schiff Base Containing a Flexible Siloxane Bridge and Its Ni II Complex
Author(s) -
Vlad Angelica,
Turta Constantin,
Cazacu Maria,
Rusu Elena,
Shova Sergiu
Publication year - 2012
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201200612
Subject(s) - siloxane , chemistry , thermogravimetric analysis , nickel , schiff base , differential scanning calorimetry , polymer chemistry , ligand (biochemistry) , organic chemistry , polymer , biochemistry , physics , receptor , thermodynamics
A Schiff base, H 2 L, containing a siloxane bridge was prepared by condensation of pyrrole‐2‐carboxaldehyde with a siloxane diamine, 1,3‐bis(3‐aminopropyl)tetramethyldisiloxane. The proper nickel(II) complex, NiL, was obtained by in situ generation of the ligand in the presence of nickel chloride. The synthesized compounds were characterized by elemental analysis and common spectroscopic (FTIR, 1 H NMR, UV/Vis) techniques. Both compounds were structurally characterized by X‐ray crystallography. NiL is a discrete mononuclear nickel complex with a tetrahedrally distorted square‐planar N 4 environment. The thermal behavior of the ligand and nickel complex was studied by thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC).