PROPERTIES AND TOXICITY OF COBALT(II) COMPLEX WITH 2,4,5-TRIPHENYL-1H-IMIDAZOLE LIGAND
ABSTRACT: Binuclear cobalt(II)
complex with 2,4,5-triphenyl-1H-imidazole ligand has been synthesized using
reflux method. The yellowish green crystals with needle-like shape were
obtained. Determination of molecular formula of the complex was carried out
using Atomic Absorption Spectroscopy (AAS) and CHN elemental analysis. The
contents of carbon, hydrogen, nitrogen and cobalt(II) in the complex were
36.28, 5.32, 4.17, and 16.64% by weight, respectively. The calculation of
element composition showed that the molecular formula of complex [(H2O)5Co-L-Co(H2O)5]Cl3.
The IR spectrum showed absorption peaks of Co-N and Co=O at 397.31 and 493.74
cm-1, respectively, confirming the formation of complex. The complex compound
showed paramagnetic properties with μeff value of 3.18 BM. Toxicity of the
complex was determined by Brine Shrimp Lethality Test (BSLT) method, and the
LC50 value of the complex was 362.24 mg/L.
Author: Fahimah Martak, Nuari
Wahyu Dwi Cahyani, Zjahra Vianita Nugraheni, Wahyu Prasetyo Utomo
Journal Code: jpkimiagg160092
