Abstract
A new noncentrosymmetric Cd(II) complex with thetripodal amine tris(2-aminoethyl)amine, CdCl2[N(C2H6N)3]2, has been prepared and characterized by single crystal X-ray diffraction, solid state NMR and IR spectroscopies. In the complex, the Cd(II) ion is surrounded by sevennitrogen atoms. The organic molecule acts as both a tri-and a tetradentate ligand. The cationic complexes are linked to each other forming layers parallel to the (a, b)plan. The Cl- counter ions occupy the cavities created inside these layers. The 13C CP-MAS NMR spectra are in agreement with the X-ray structure. DFT calculations allow the attribution of the carbon peaks to the differentatoms.The vibrational absorption bands were identified by infrared spectroscopy and DFT calculations allowed their attributions.
Highlights
Mono, di- and polynuclear coordination compounds of cadmium(II) [1,2,3,4,5,6] are of great interest for the preparation of functional materials with specific electronic and optoelectronic properties [7, 8]
In the crystal structure of the complex, the Cd(II) ionis heptacoordinated to seven nitrogen atoms belonging to two cristallographically independent tris(2-aminoethyl)amine ligands
One of them acts as a tetradentalewhile the other is a tridentateligand.The cationic complexes are linked to each other forming layers parallel to the (a, b)plane
Summary
Mono-, di- and polynuclear coordination compounds of cadmium(II) [1,2,3,4,5,6] are of great interest for the preparation of functional materials with specific electronic and optoelectronic properties [7, 8]. Different cadmium(II) compounds with interesting molecular properties using multidentate N-donor Schiff bases in combination with halides/pseudohalides were isolated [9,10,11,12,13]. The coordination behaviors of Schiff bases [14, 15] are of great interest because of their ease of preparation, structural variety, varied denticities and subtle steric and/or electronic effects leading to complexes of different dimensionalities. This work stems from our interest to build new molecular and crystalline architecture of cadmium(II) in combination with the tris(2-aminoethyl)amine as a Schiff base
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