Synthesis, thermogravimetry, optical features and X-ray structural characterization of a new Hg−Te dinuclear cluster compound obtained using an ultrasonic bath

Hg(TePh)2 reacts with P(Cy)3 {P(Cy)3 = tricyclohexylphosphine} under Ar atmosphere and ultrasonic bath to give the dinuclear cluster [Hg2(μ-PhTe)2(PhTe)2(PCy3)2] (1). Earlier attempts had not success because of the low solubility of Hg(PhTe)2 and the use of inadequate phosphines. TGA and IR data confirm the formation of 1 and the optical band gap of the compound could be estimated by means of UV–vis diffuse reflectance spectra.

Graphical abstractHg(TePh)2 reacts with tricyclohexylphosphine (PCy3) in an ultrasonic bath to give the dinuclear cluster [Hg2(μ-PhTe)2(PhTe)2(PCy3)2] (1). TGA and IR data confirm the formation of 1. The optical band gap of the compound was estimated through UV–vis diffuse reflectance spectra.Figure optionsDownload full-size imageDownload as PowerPoint slideHighlights► The use of an ultrasonic bath in the synthesis of the new dinuclear cluster [Hg2(μ-PhTe)2(PhTe)2(PCy3)2] (1). ► TGA experiments as well as IR data confirm the structure characterized by X-ray diffractometry. ► the optical band gap of 1 was determined by UV–vis diffuse reflectance spectroscopy.