Synthesis and Characterization of Novel Chloro-Ru(III) complex with Formamide

Abstract

A new neutral complex has been synthesized in reaction of [RuCl6]3- with formamide in mixed solvent ethanol-water (10:1). Obtained olive green substance was characterized by mass spectrometry, CHN elemental analysis, IR and UV-VIS spectroscopy. Based on experimental data, compound was formulated as [RuCl3(HCONH2)3]x0,5C2H5OH. Relative molecular mass of synthesized compound was determined by MALDI-TOF mass spectrometry as adduct with K+ ion to have value of 382.8485. IR spectrum of formamide, indicates coordination through the amide carbonyl oxygen, which is indicated by shift of carbonyl absorption from 1681 cm-1 in free formamide to 1636 cm-1 in synthesized compound. UV-VIS spectrum of synthesized compound in water shows LMCT absorption centered around 300 nm. Hydrolytic profile indicates that compound hydrolyses with fast exchange of first chloride ion with water molecule.