Nickel (II) Complexes Synthesis, Characterization and its Larvicidal, and Antifeedant Activities

Abstract

In this study the synthesis of Nickel complexes with various organic ligands by using ethanol as a solvent. This method offers efficient and mild reaction conditions. The synthesized complexes were characterized by UV- Visible and IR spectroscopy. The synthesized complexes are also evaluated for larvicidal, antifeedant, and mosquito larval growth and regulation activities. Complex 1b was highly active against CulexquinquefasciatusLD₅₀ value of 18.52 µg/ml than complexes 1a and 1c with the LD₅₀ value of 59.97 and 84.73 µg/ml. Among the complexes 1a-1c the complex 1c was less active in contradiction ofCulexquinquefasciatus with the LD₅₀ value of 84.73 µg/ml respectively. Complex 1a exhibited high toxicity associated with former complexes 1b and 1c. Complex 1a produced 80% mortality in 24hr at 100 µg/ml respectively. Toxicity was restrained as death percentage at 24hr. Complex 1b produced 43% mortality in 24hr at 100 µg/ml. Among the synthesized complexes 1a-1cthe complex 1a was highly active with the LD₅₀ value of 46.08 µg/ml.