Abstract
The reaction between in situ generated H2Se and [Cp*MoO2Cl] (1) produces a mixture of binuclear and trinuclear selenium clusters. New selenide complex [Cp*2Mo2Se6] (2) was isolated from CH2Cl2 extracts of the products mixture and characterized by X-ray analysis. This binuclear cluster contains two unprecedented Se34− ligands isoelectronic to I3−. Column chromatography of extracts in air produced two bands, from which [Cp*2Mo2O2Se2] (3) and a new triangular cluster [Cp*3Mo3Se4][ZnCl3(H2O)] (4) were isolated and structurally characterized. The products were characterized by 1H and 77Se NMR, ESI–MS, IR and elemental analysis. Quantum-chemical calculations were used to analyze the Mo–Mo bonding and to help identify lines in 77Se NMR spectra. Crystal and molecular structure of starting [Cp*MoO2Cl] was also determined.
Published Version
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