Methylsulfate Complex (Bu4N)2[Мo6I8(O3SOCH3)6]: Synthesis, Structure, Lability of Ligands, and Phosphorescence
摘要
Abstract
New methylsulfate complex (Bu4N)2[Мо6I8(O3SOCH3)6] (I) is synthesized by the reaction of (Bu4N)2[Mo6I8(C≡C–C(O)OCH3)6] with dimethyl sulfate (CH3)2SO4. According to the XRD data, the molybdenum atoms are coordinated by the monodentate methylsulfate ligands. In a DMSO solution, the complex undergoes solvolysis accompanied by the complete substitution of the methylsulfate ligands by the solvent molecules. A powder sample of cluster I luminesces (phosphorescence) with the emission maximum at a wavelength of 620 nm (77 K). Increasing temperature to 300 K results in the shift of the emission maximum to 650 nm and a decrease in the integral intensity by 1.6 times.