Nickel (II)-complex ligand as host for Potassium ion guest. Spectroscopic characterization and X-ray structure determination

The title complex, {[Ni(hab)]K[(hab)Ni]}·SCN (H2hab is bis(2-hydroxy-3-methoxybenzylidene)-1,2-diaminobenzene) crystallizes in the Monoclinic space group P21/c with unit cell dimensions a = 11.5891 (13) Å,b = 17.307 (2) Å, c = 19.781 (2) Å,? = 92.368 (10)°, V = 3964.2 (8) Å3, Z = 4, R1 = 0.106 and wR2 = 0.305. The NiII cation is in a N2O2 inner and has a distorted square-planar coordination environment. The NiII cation is linked by two imino nitrogen atoms and two bridged phenolate oxygen atoms. The potassium cation is octacoordinated in O8 donor site and linked by four bridged phenolate oxygen atoms and four methoxy oxygen atoms. In the crystal, the {[Ni(hab)]K[(hab)Ni]}+ cations form layers parallel to the ab plane. The SCN- anions are located in the interlayer space and connect the layers via C—H…N and C—H…S hydrogen bonds, forming three dimensional network.

Auteur(s) : Mayoro DIOP, Mamou SARR, Amar DIOP, Ibrahima Elhadj THIAM, Aliou Hamady BARRY, Mohamed GAYE, Natalia Alvarez and Javier Ellena
Pages : 18-24
Année de publication : 2019
Revue : IOSR Journal of Applied Chemistry (IOSR-JAC)
N° de volume : 12
Type : Article
Mise en ligne par : THIAM Ibrahima El Hadji