TiCn4 is not a chemical formula. However, the formula TiCi4 is titanium tetrachloride which is an inorganic compound. It is a highly volatile metal halide.
The compound TiCN4 does not exist. The chemical formula for compounds typically contains elements with known oxidation states that allow for stable bonding. In this case, a titanium compound with four carbon and nitrogen atoms bound to it would not be feasible.
Ti(CN)4 is Titanium (IV) Cyanide