SYNTHESIS AND IR SPECTROSCOPIC STUDY OF COMPLEXES OF SELECTED 3D-METALS WITH 2-(PHENYLMETHYL)-1H-BENZIMIDAZOLE

Authors

Gulnoza O. BABAYEVA, National University of Uzbekistan, Tashkent, UzbekistanFollow
Gulbeka G. MAMATOVA, National University of Uzbekistan, Tashkent, UzbekistanFollow
Daminbek A. ZIYATOV, National University of Uzbekistan, Tashkent, UzbekistanFollow
Lola Sh. MAKHMUDOVA, National University of Uzbekistan, Tashkent, UzbekistanFollow
Shahlo Sh. DAMINOVA, National University of Uzbekistan; Uzbek - Japan Innovation Center of Youth, Tashkent, UzbekistanFollow

Abstract

The aim of this study was the synthesis and structural investigation of coordination compounds of selected 3d-metals with 2-(phenylmethyl)-1H-benzimidazole (FAB) using IR spectroscopy. Complexes of copper(II), nickel(II), cobalt(II), and zinc(II) with the general formula [M(FAB)₂Cl₂], as well as a complex [Co(FAB)₂(ac)₂], were synthesized. IR spectroscopic analysis revealed that FAB coordinates to metal ions through the nitrogen atom of the benzimidazole ring. Shifts in the ν(C=N), ν(C-N) bands and the appearance of new bands in the 580-430 cm⁻¹ region corresponding to ν(M-N) and ν(M-Cl) confirm the formation of metal complexes. It was established that the [M(FAB)₂Cl₂] complexes exhibit a tetrahedral geometry, while the [Co(FAB)₂(ac)₂] complex has an octahedral structure.

Recommended Citation

BABAYEVA, Gulnoza O.; MAMATOVA, Gulbeka G.; ZIYATOV, Daminbek A.; MAKHMUDOVA, Lola Sh.; and DAMINOVA, Shahlo Sh. (2025) "SYNTHESIS AND IR SPECTROSCOPIC STUDY OF COMPLEXES OF SELECTED 3D-METALS WITH 2-(PHENYLMETHYL)-1H-BENZIMIDAZOLE," CHEMISTRY AND CHEMICAL ENGINEERING: Vol. 2025: No. 3, Article 4.
DOI: https://doi.org/10.70189/1992-9498.1685
Available at: https://cce.researchcommons.org/journal/vol2025/iss3/4