* Valence: Sulfur (S) typically has a valence of 2, 4, or 6, while chlorine (Cl) has a valence of 1. This means that sulfur can form a maximum of 6 bonds, and chlorine can form only one bond.
* Stability: The proposed formula would require sulfur to form four bonds with chlorine atoms, which is unlikely due to the electronegativity difference between the two elements.
It's possible that you meant a different formula, like SCl4, which is sulfur tetrachloride. This compound exists and has a tetrahedral geometry, with sulfur at the center and four chlorine atoms surrounding it.