A new monomeric octahedral cadmium(II) complex based on 1,1-bis(3-methyl-4-imidazoline-2-thione)methane ligand with dye adsorption ability

Abstract

A new cadmium complex with a flexible imidazolinethione ligand has been successfully synthesized. The ligand acts as a bidentate chelating molecule, resulting in the structure being a monomer. In this monomer, cadmium has an octahedral geometry coordinated by four sulfur atoms from two mbit ligands where mbit = 3,3'-methylenebis(1-methyl-1,3-dihydro-2H-imidazole-2-thione) and two oxygen atoms from the DMF molecules. The ${\text{ClO}}_4^{-}$ anions are uncoordinated and neutralize the positive charge of the cationic complex. The title complex has a good capacity for adsorbing several organic dyes from pollutant solutions.

GRAPHICAL ABSTRACT

KEYWORDS:

• Sulfur donor ligand
• dye adsorption
• kinetic studies
• cationic dyes
• anionic dyes

Disclosure statement

The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

Additional information

Funding

This work was supported by Shahid Chamran University of Ahvaz [grant number SCU.SC1400.835].