We cannot introduce Si3Br8 as per your request because Si3Br8 is not a valid chemical compound. In the chemical system, elements combine with each other in a certain ratio, usually an integer. Silicon (Si) and Bromine (Br) can combine to form a chemical compound, but the 3:8 ratio (as in Si3Br8) is not a valid ratio.
Instead, we can discuss SiBr4, which is a valid chemical compound of Silicon and Bromine. SiBr4, also known as Tetrabromosilane, is a colorless, odorless, and solid compound at room conditions. It is insoluble in water and highly flammable upon contact with air. The structure of SiBr4 consists of a silicon atom at the center, connected to four bromine atoms at the four corners of a tetrahedron.
In its pure form, SiBr4 is a stable and unreactive substance. However, when mixed with water, SiBr4 decomposes to form silicic acid and hydrobromic acid. This is a chemical reaction process that transforms SiBr4 from a non-polar compound into two polar compounds.
In the laboratory, SiBr4 can be synthesized from Silicon and Bromine under high temperature conditions. On an industrial scale, SiBr4 is often produced as a by-product of the oil refining process.