Zinc chlorochromate nonahydrate is easily prepared from the aqueous solution of chromium trioxide and zinc chloride in quantitative yield. This oxidant, in methylene chloride and at room temperature, oxidizes thiols to their disulfides. Acetals and thioacetals are deprotected to their corresponding carbonyl compounds. Sulfides are selectively converted to ther sulfoxides or sulfones. Arylox...

We investigate Einstein-\AE ther gravity in light of the recent Event Horizon Telescope (EHT) observations M87*. The shape and size observed black hole shadow contains information geometry its vicinity, thus one can consider it as a potential probe to different gravitational theories, since involved calculation framework is enriched with size-rotation features well extra model parameters. In ca...